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S&S CYCLE

S&S CYCLE

S&S CYCLE

Shop S&S Cycle Harley-Davidson Performance Parts: Big Bore Kits, Engines & Exhaust at JJ Motorsports

Discover legendary S&S Cycle performance parts, the premier USA-based manufacturer of high-horsepower motorcycle engines and components since 1958. Founded by George J. Smith and Stanley Stankos, S&S is the go-to brand for serious Harley-Davidson builders and racers seeking maximum power, reliability, and American-made quality. From complete long-block engines and big bore top-end kits to flywheels, cams, carburetors, and race-proven exhaust systems, S&S delivers groundbreaking innovations like the T143 engine, MK45 mufflers, and Shovelhead-style heads that transform stock Harleys into fire-breathing machines.

At JJ Motorsports, we stock the full line of S&S Cycle parts at competitive prices with fast shipping. Build more cubic inches, add serious torque, or upgrade your exhaust note with the brand trusted by champions for over 65 years. Explore related categories such as motorcycle engines and components for complete builds or motorcycle exhaust for power gains.

Top S&S Cycle Products

  • S&S Cycle Top End Kit - Big Twin 90-0097 – Complete bolt-on top-end kit with Shovelhead-style heads, stock bore cylinders, 8:1 forged pistons, gaskets, and hardware — no machining required for instant big-inch power.
  • S&S Cycle Flywheel Assembly 320-0598 – Forged steel flywheel assembly with keyed 6" tapered sprocket shaft, balanced to stock HD 80" pistons, includes crankpin and connecting rods — built for high-performance and custom applications.
  • S&S Cycle 4-1/2" Chrome MK45 Cutlass Performance Mufflers 550-1011 – Bold 4-1/2" chrome mufflers with stainless steel baffles, RaceTEX packing for deep bass rumble, removable dB reducer, and 50-state legal — massive looks with serious performance gains.

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    S&S CYCLE Replacement Rings 94-2208X

    S&S CYCLE Replacement Rings 94-2208X

    S&S CYCLE

    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Piston rings are critical wear items that directly impact compression, oil control, and overall engine performance. OEM rings often degrade after extended use or high-mileage operation, leading to...
    09120091
    SKU:
    09120091
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    PISTON RING
    TYPE:
    REPLACEMENT
    UNITS:
    SET
    BORE SIZE IMPERIAL:
    3.4375'
    PISTON SIZE IMPERIAL:
    +0.080'
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Subtotal:
  • On Sale
    S&S CYCLE Replacement Rings 94-2209X

    S&S CYCLE Replacement Rings 94-2209X

    S&S CYCLE

    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Maintaining proper ring seal is critical to engine performance and longevity. S&S Cycle replacement rings ensure optimal compression, reduced blow-by, and consistent power delivery across the RPM...
    09120092
    SKU:
    09120092
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    STREET
    TYPE:
    REPLACEMENT
    BORE SIZE IMPERIAL:
    3.4375'
    PISTON SIZE IMPERIAL:
    +0.090'
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Subtotal:
  • On Sale
    S&S CYCLE Replacement Rings 94-1200X

    S&S CYCLE Replacement Rings 94-1200X

    S&S CYCLE

    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    When you're building or rebuilding a high-performance engine, piston ring quality directly impacts compression, blow-by control, and overall reliability. S&S Cycle replacement rings are engineered to...
    09120093
    SKU:
    09120093
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    TYPE:
    REPLACEMENT
    UNITS:
    SET
    RIDING STYLE:
    STREET
    BORE SIZE IMPERIAL:
    3.625'
    PISTON SIZE IMPERIAL:
    STANDARD
    PRODUCT NAME:
    PISTON RING
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Subtotal:
  • On Sale
    S&S CYCLE Replacement Rings 94-1201X

    S&S CYCLE Replacement Rings 94-1201X

    S&S CYCLE

    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    When you're rebuilding or refreshing your S&S piston assembly, OEM-quality rings are non-negotiable for proper compression, oil control, and ring seal integrity. S&S Cycle replacement rings are...
    09120094
    SKU:
    09120094
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    PISTON SIZE IMPERIAL:
    +0.010'
    RIDING STYLE:
    STREET
    TYPE:
    REPLACEMENT
    UNITS:
    SET
    BORE SIZE IMPERIAL:
    3.625'
    PRODUCT NAME:
    PISTON RING
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $54.95
    Now: $49.46
    Was: $54.95
    Subtotal:
  • On Sale
    S&S CYCLE Replacement Rings 94-1213X

    S&S CYCLE Replacement Rings 94-1213X

    S&S CYCLE

    MSRP: $64.95
    Now: $58.46
    Was: $64.95
    When you're rebuilding an S&S Cycle engine, using OEM-spec replacement rings ensures proper compression, reduced blow-by, and consistent performance across the entire RPM band. These rings are...
    09120098
    SKU:
    09120098
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    UNITS:
    SET
    BORE SIZE IMPERIAL:
    3.625'
    PRODUCT NAME:
    PISTON RING
    PISTON SIZE IMPERIAL:
    +0.030'
    RIDING STYLE:
    STREET
    TYPE:
    REPLACEMENT
    MSRP: $64.95
    Now: $58.46
    Was: $64.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $64.95
    Now: $58.46
    Was: $64.95
    Subtotal:
  • On Sale
    S&S CYCLE Piston Rings 106-3709A

    S&S CYCLE Piston Rings 106-3709A

    S&S CYCLE

    MSRP: $74.95
    Now: $67.46
    Was: $74.95
    Piston rings are critical wear items that directly impact compression, oil control, and overall engine efficiency. When rings become worn or damaged, you'll experience blow-by, increased oil...
    09120640
    SKU:
    09120640
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    REPLACEMENT
    PISTON SIZE IMPERIAL:
    STANDARD
    PRODUCT NAME:
    PISTON RING
    BORE SIZE IMPERIAL:
    3.927'
    RIDING STYLE:
    STREET
    UNITS:
    SET
    MSRP: $74.95
    Now: $67.46
    Was: $74.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $74.95
    Now: $67.46
    Was: $74.95
    Subtotal:
  • On Sale
    S&S CYCLE Piston Rings 940-0014

    S&S CYCLE Piston Rings 940-0014

    S&S CYCLE

    MSRP: $85.95
    Now: $77.36
    Was: $85.95
    Worn or damaged piston rings directly compromise compression, blowby, and oil control—leading to reduced power output and increased fuel consumption. The S&S Cycle 940-0014 replacement rings restore...
    09120641
    SKU:
    09120641
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    BORE SIZE IMPERIAL:
    4.125'
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    PISTON RING
    TYPE:
    REPLACEMENT
    PISTON SIZE IMPERIAL:
    STANDARD
    UNITS:
    SET
    MSRP: $85.95
    Now: $77.36
    Was: $85.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $85.95
    Now: $77.36
    Was: $85.95
    Subtotal:
  • On Sale
    S&S CYCLE Piston Rings 940-0013

    S&S CYCLE Piston Rings 940-0013

    S&S CYCLE

    MSRP: $84.95
    Now: $76.46
    Was: $84.95
    Piston rings are critical wear items that directly impact compression, oil control, and power delivery—worn or damaged rings rob you of performance and increase blow-by. S&S Cycle piston rings are...
    09120646
    SKU:
    09120646
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    REPLACEMENT
    UNITS:
    SET
    PRODUCT NAME:
    PISTON RING
    BORE SIZE IMPERIAL:
    4.125'
    RIDING STYLE:
    STREET
    PISTON SIZE IMPERIAL:
    +0.020'
    MSRP: $84.95
    Now: $76.46
    Was: $84.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $84.95
    Now: $76.46
    Was: $84.95
    Subtotal:
  • On Sale
    S&S CYCLE Clips 94-9254

    S&S CYCLE Clips 94-9254

    S&S CYCLE

    MSRP: $7.95
    Now: $7.16
    Was: $7.95
    Proper piston ring management is critical for maintaining compression integrity and preventing blow-by in high-performance engines. These S&S Cycle clips ensure your forged pistons maintain optimal...
    09130244
    SKU:
    09130244
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    TYPE:
    PIN
    UNITS:
    4 PACK
    PRODUCT NAME:
    CIRCLIP
    APPLICATION:
    PISTON
    RIDING STYLE:
    STREET
    MSRP: $7.95
    Now: $7.16
    Was: $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $7.95
    Now: $7.16
    Was: $7.95
    Subtotal:
  • On Sale
    S&S CYCLE REED VALVE, 93-99 STD 31-2096

    S&S CYCLE REED VALVE, 93-99 STD 31-2096

    S&S CYCLE

    MSRP: $165.95
    Now: $149.36
    Was: $165.95
    High-RPM oil carryover kills engine efficiency and creates maintenance headaches—especially in modified or hard-driven engines with marginal ring seal. The S&S Cycle reed valve solves this problem...
    09200008
    SKU:
    09200008
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    COLOR/FINISH:
    SILVER
    DIAMETER - THREAD SIZE IMPERIAL:
    STANDARD
    PRODUCT NAME:
    BREATHER VALVE
    RIDING STYLE:
    STREET
    TYPE:
    CRANKCASE
    UNITS:
    EACH
    BASE COLOR:
    SILVER
    MSRP: $165.95
    Now: $149.36
    Was: $165.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $165.95
    Now: $149.36
    Was: $165.95
    Subtotal:
  • On Sale
    S&S CYCLE REED VALVE, 84-99 +.030 31-2100

    S&S CYCLE REED VALVE, 84-99 +.030 31-2100

    S&S CYCLE

    MSRP: $171.95
    Now: $154.76
    Was: $171.95
    If you're running a high-rpm engine with marginal piston ring seal, oil carryover into your cam chest is costing you performance and creating maintenance headaches. The S&S Cycle reed valve solves...
    09200009
    SKU:
    09200009
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    COLOR/FINISH:
    SILVER
    PRODUCT NAME:
    BREATHER VALVE
    RIDING STYLE:
    STREET
    TYPE:
    CRANKCASE
    UNITS:
    EACH
    DIAMETER - THREAD SIZE IMPERIAL:
    +0.030'
    BASE COLOR:
    SILVER
    MSRP: $171.95
    Now: $154.76
    Was: $171.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $171.95
    Now: $154.76
    Was: $171.95
    Subtotal:
  • On Sale
    S&S CYCLE Standard Pistons 92-1210

    S&S CYCLE Standard Pistons 92-1210

    S&S CYCLE

    MSRP: $546.95
    Now: $492.26
    Was: $546.95
    If you're building a 106" stroker engine for your Harley-Davidson Big Twin, these S&S forged pistons are non-negotiable. Engineered specifically for the S&S 106" stroker kit with 4-1/2" stroke...
    09200001
    SKU:
    09200001
    Availability:
    Ships Same Business Day
    Weight:
    2.95 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE OVERSIZE - IMPERIAL:
    STANDARD
    UNITS:
    SET
    BORE SIZE IMPERIAL:
    3.875'
    DISPLACEMENT:
    106'
    RIDING STYLE:
    STREET
    STROKE LENGTH IMPERIAL:
    4-1/2'
    PISTON MATERIAL:
    FORGED ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    MSRP: $546.95
    Now: $492.26
    Was: $546.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $546.95
    Now: $492.26
    Was: $546.95
    Subtotal:
  • On Sale
    S&S CYCLE Engine Case - Twin Cam 310-0369

    S&S CYCLE Engine Case - Twin Cam 310-0369

    S&S CYCLE

    MSRP: $2,155.95
    Now: $1,940.36
    Was: $2,155.95
    If you're building a high-displacement Twin Cam engine or pushing your H-D beyond stock limits, OEM crankcases will become your limiting factor. S&S Cycle's replacement engine cases deliver the...
    09200093
    SKU:
    09200093
    Availability:
    Ships Same Business Day
    Weight:
    35.80 LBS
    BASE COLOR:
    BLACK
    BASE FINISH:
    POWDER-COATED
    BORE SIZE IMPERIAL:
    4.125'
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    POWDER-COATED
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MSRP: $2,155.95
    Now: $1,940.36
    Was: $2,155.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,155.95
    Now: $1,940.36
    Was: $2,155.95
    Subtotal:
  • On Sale
    S&S CYCLE Super Stock¢â€žÂ¢ Engine Case 31-0055

    S&S CYCLE Super Stock¢â€žÂ¢ Engine Case 31-0055

    S&S CYCLE

    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    A proper engine case is the foundation of any reliable high-performance build, and the S&S Cycle Super Stock case delivers the precision machining and OEM-quality construction that serious builders...
    09200063
    SKU:
    09200063
    Availability:
    Ships Same Business Day
    Weight:
    29.38 LBS
    COLOR/FINISH:
    BLACK
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    RIDING STYLE:
    STREET
    BORE SIZE IMPERIAL:
    3.500'
    UNITS:
    KIT
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Subtotal:
  • On Sale
    S&S CYCLE Super Stock¢â€žÂ¢ Engine Case 31-0078

    S&S CYCLE Super Stock¢â€žÂ¢ Engine Case 31-0078

    S&S CYCLE

    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    If you're building a high-performance Harley engine, your crankcase is the foundation of everything. The S&S Cycle Super Stock Engine Case gives you a precision-machined platform that optimizes oil...
    09200064
    SKU:
    09200064
    Availability:
    Ships Same Business Day
    Weight:
    29.00 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    ENGINE CASE
    UNITS:
    KIT
    BORE SIZE IMPERIAL:
    3.625'
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK®
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankcase - Black 310-0878

    S&S CYCLE Crankcase - Black 310-0878

    S&S CYCLE

    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    If you're building a high-performance engine or replacing a worn crankcase on a Harley-Davidson big twin, the S&S CYCLE Crankcase gives you the strength and precision you need without compromising...
    09200155
    SKU:
    09200155
    Availability:
    Ships Same Business Day
    Weight:
    35.80 LBS
    MATERIAL:
    356 T-6 ALUMINUM
    BASE COLOR:
    BLACK
    BORE SIZE IMPERIAL:
    STANDARD
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK
    PRODUCT NAME:
    CRANKCASE
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    BASE FINISH:
    POWDER-COATED
    COLOR/FINISH:
    BLACK
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankcase - Black 310-0856

    S&S CYCLE Crankcase - Black 310-0856

    S&S CYCLE

    MSRP: $2,245.95
    Now: $2,021.36
    Was: $2,245.95
    Building a high-performance Harley-Davidson engine demands a foundation that can handle extreme compression, aggressive cams, and extended stroke lengths without compromise. The S&S CYCLE Crankcase...
    09200157
    SKU:
    09200157
    Availability:
    Ships Same Business Day
    Weight:
    35.40 LBS
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    CRANKCASE
    MATERIAL:
    356 T-6 ALUMINUM
    BASE FINISH:
    POWDER-COATED
    BORE SIZE IMPERIAL:
    4.125'
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MSRP: $2,245.95
    Now: $2,021.36
    Was: $2,245.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,245.95
    Now: $2,021.36
    Was: $2,245.95
    Subtotal:
  • On Sale
    S&S CYCLE Special Application Crankcase 31-0047

    S&S CYCLE Special Application Crankcase 31-0047

    S&S CYCLE

    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    If you're building a big-displacement Harley engine with serious cylinder bore sizes, stock crankcases simply won't cut it. The S&S Special Application Crankcase relocates critical internal passages...
    09200158
    SKU:
    09200158
    Availability:
    Ships Same Business Day
    Weight:
    34.20 LBS
    PRODUCT NAME:
    CRANKCASE
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankcase - Natural 31-0008

    S&S CYCLE Crankcase - Natural 31-0008

    S&S CYCLE

    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    A quality crankcase is the foundation of a reliable, high-performance engine—it houses your bearings, manages oil delivery, and sets the standard for longevity. The S&S Cycle crankcase delivers...
    09200124
    SKU:
    09200124
    Availability:
    Ships Same Business Day
    Weight:
    31.40 LBS
    COLOR/FINISH:
    NATURAL
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    TYPE:
    GENERATOR
    UNITS:
    KIT
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankcase - Black 31-0052

    S&S CYCLE Crankcase - Black 31-0052

    S&S CYCLE

    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    A quality crankcase is the foundation of any reliable Harley-Davidson engine build. The S&S Cycle crankcase delivers precision-machined construction with optimized oil scavenging and proven Timken...
    09200132
    SKU:
    09200132
    Availability:
    Ships Same Business Day
    Weight:
    29.65 LBS
    BORE SIZE IMPERIAL:
    3.500'
    COLOR/FINISH:
    BLACK
    UNITS:
    KIT
    MATERIAL:
    ALUMINUM
    MODEL:
    SUPER STOCK®
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    ENGINE CASE
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,995.95
    Now: $1,796.36
    Was: $1,995.95
    Subtotal:
  • On Sale
    S&S CYCLE Breather Valve - Twin Cam 310-0742

    S&S CYCLE Breather Valve - Twin Cam 310-0742

    S&S CYCLE

    MSRP: $152.95
    Now: $137.66
    Was: $152.95
    Oil carryover from your breather is more than just a mess—it's a sign your crankcase ventilation can't keep pace with your Twin Cam engine. The S&S CYCLE Breather Valve eliminates this problem at the...
    09200136
    SKU:
    09200136
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    PRODUCT NAME:
    BREATHER VALVE
    RIDING STYLE:
    STREET
    TYPE:
    CRANKCASE
    UNITS:
    EACH
    MSRP: $152.95
    Now: $137.66
    Was: $152.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.95
    Now: $137.66
    Was: $152.95
    Subtotal:
  • On Sale
    S&S CYCLE Magnetic Oil Drain Plug 50-8335

    S&S CYCLE Magnetic Oil Drain Plug 50-8335

    S&S CYCLE

    MSRP: $19.95
    Now: $17.96
    Was: $19.95
    Engine debris and ferrous particles circulate through your oil system every time you start your bike—they're inevitable byproducts of normal wear. A magnetic drain plug captures these contaminants...
    09200141
    SKU:
    09200141
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    FEATURES:
    MAGNETIC
    PRODUCT NAME:
    PLUG
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    DIAMETER - THREAD SIZE IMPERIAL:
    1/2-20
    TYPE:
    OIL DRAIN
    MSRP: $19.95
    Now: $17.96
    Was: $19.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $19.95
    Now: $17.96
    Was: $19.95
    Subtotal:
  • On Sale
    S&S CYCLE Engine Case 310-0367A

    S&S CYCLE Engine Case 310-0367A

    S&S CYCLE

    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    If you're building a high-performance Twin Cam engine and need a foundation that won't compromise reliability, S&S Cycle's replacement engine cases deliver the strength and precision you demand...
    09200142
    SKU:
    09200142
    Availability:
    Ships Same Business Day
    Weight:
    35.80 LBS
    PRODUCT NAME:
    ENGINE CASE
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    POWDER-COATED
    UNITS:
    EACH
    BASE FINISH:
    POWDER-COATED
    BORE SIZE IMPERIAL:
    3.750'
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Subtotal:
  • On Sale
    S&S CYCLE Nut Crankpin 1-20 Black 34-2104

    S&S CYCLE Nut Crankpin 1-20 Black 34-2104

    S&S CYCLE

    MSRP: $14.95
    Now: $13.46
    Was: $14.95
    A properly secured crankpin nut is critical to maintaining crankshaft integrity under high RPM and heavy load conditions. This OEM-specification nut ensures reliable fastening on S&S flywheels,...
    09200148
    SKU:
    09200148
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    BLACK
    BASE FINISH:
    MATTE
    MEASUREMENT SYSTEM:
    SAE
    APPLICATION:
    FLYWHEEL
    RIDING STYLE:
    STREET
    TYPE:
    CRANKPIN
    UNITS:
    EACH
    PRODUCT NAME:
    NUT
    MSRP: $14.95
    Now: $13.46
    Was: $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $14.95
    Now: $13.46
    Was: $14.95
    Subtotal:
  • On Sale
    S&S CYCLE Flywheel Assembly - Big Twin 32-2239

    S&S CYCLE Flywheel Assembly - Big Twin 32-2239

    S&S CYCLE

    MSRP: $1,595.95
    Now: $1,436.36
    Was: $1,595.95
    A quality flywheel assembly is the foundation of reliable engine performance—it handles the rotational loads from your crankshaft while maintaining precise balance across the entire powerband. The...
    09210250
    SKU:
    09210250
    Availability:
    Ships Same Business Day
    Weight:
    36.75 LBS
    ENGINE TYPE:
    4-STROKE
    MATERIAL:
    STEEL
    PRODUCT NAME:
    FLYWHEEL ASSEMBLY
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    STROKE LENGTH IMPERIAL:
    4-1/4'
    MSRP: $1,595.95
    Now: $1,436.36
    Was: $1,595.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,595.95
    Now: $1,436.36
    Was: $1,595.95
    Subtotal:
  • On Sale
    S&S CYCLE Engine Case 31-0172A

    S&S CYCLE Engine Case 31-0172A

    S&S CYCLE

    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    If you're pushing your Twin Cam past stock limits, your factory cases are holding you back. S&S Cycle engine cases deliver the structural integrity you need for higher-displacement builds, stronger...
    09200187
    SKU:
    09200187
    Availability:
    Ships Same Business Day
    Weight:
    33.80 LBS
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    BORE SIZE IMPERIAL:
    STANDARD
    UNITS:
    EACH
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,195.95
    Now: $1,976.36
    Was: $2,195.95
    Subtotal:
  • On Sale
    S&S CYCLE Engine Case 31-0181A

    S&S CYCLE Engine Case 31-0181A

    S&S CYCLE

    MSRP: $2,155.95
    Now: $1,940.36
    Was: $2,155.95
    If you're building a high-performance Twin Cam engine and need cases that can handle increased displacement and aggressive cam profiles, S&S Cycle's 31-0181A offers the strength and clearance you...
    09200188
    SKU:
    09200188
    Availability:
    Ships Same Business Day
    Weight:
    33.30 LBS
    BASE FINISH:
    WRINKLE BLACK
    BORE SIZE IMPERIAL:
    4.125'
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    CRANKCASE
    RIDING STYLE:
    STREET
    BASE COLOR:
    BLACK
    UNITS:
    EACH
    MSRP: $2,155.95
    Now: $1,940.36
    Was: $2,155.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $2,155.95
    Now: $1,940.36
    Was: $2,155.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankpin - Big Twin 34-2007

    S&S CYCLE Crankpin - Big Twin 34-2007

    S&S CYCLE

    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    A quality crankpin is the foundation of reliable big twin engine performance. Whether you're rebuilding a classic motor or maintaining a high-mileage engine, S&S Cycle's precision-engineered crankpin...
    09210160
    SKU:
    09210160
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    STEEL
    PRODUCT NAME:
    CRANKPIN ASSEMBLY
    TYPE:
    OVERSIZED
    UNITS:
    EACH
    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankpin - Big Twin 34-2102

    S&S CYCLE Crankpin - Big Twin 34-2102

    S&S CYCLE

    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    A worn or damaged crankpin is a ticking time bomb for your Big Twin engine—it directly impacts rod bearing life, crankshaft alignment, and overall power delivery. The S&S Cycle Crankpin 34-2102 is a...
    09210161
    SKU:
    09210161
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    PRODUCT NAME:
    CRANKPIN ASSEMBLY
    TYPE:
    STANDARD
    MATERIAL:
    STEEL
    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankpin - Big Twin 34-2103

    S&S CYCLE Crankpin - Big Twin 34-2103

    S&S CYCLE

    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    A worn or damaged crankpin compromises the entire rotating assembly, leading to catastrophic engine failure. The S&S Cycle Crankpin is precision-engineered to OEM specifications and built from...
    09210162
    SKU:
    09210162
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    RIDING STYLE:
    STREET
    MATERIAL:
    STEEL
    PRODUCT NAME:
    CRANKPIN ASSEMBLY
    TYPE:
    OVERSIZED
    UNITS:
    EACH
    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $163.95
    Now: $147.56
    Was: $163.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankpin - XL 34-2503

    S&S CYCLE Crankpin - XL 34-2503

    S&S CYCLE

    MSRP: $245.95
    Now: $221.36
    Was: $245.95
    The S&S Cycle Crankpin 34-2503 is an essential replacement component for high-mileage big-twin engines or custom builds where factory tolerances have worn beyond serviceable limits. This...
    09210163
    SKU:
    09210163
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    TYPE:
    STANDARD
    MATERIAL:
    STEEL
    PRODUCT NAME:
    CRANKPIN ASSEMBLY
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    MSRP: $245.95
    Now: $221.36
    Was: $245.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $245.95
    Now: $221.36
    Was: $245.95
    Subtotal:
  • On Sale
    S&S CYCLE Crankpin - XL 34-2602

    S&S CYCLE Crankpin - XL 34-2602

    S&S CYCLE

    MSRP: $189.95
    Now: $170.96
    Was: $189.95
    The S&S Cycle Crankpin is a precision-engineered component engineered to withstand the extreme stresses of high-RPM operation and forced induction applications. This OEM-quality crankpin restores...
    09210164
    SKU:
    09210164
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    TYPE:
    STANDARD
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MATERIAL:
    STEEL
    UNITS:
    EACH
    MSRP: $189.95
    Now: $170.96
    Was: $189.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $189.95
    Now: $170.96
    Was: $189.95
    Subtotal:
  • On Sale
    S&S CYCLE Pinion Shaft - Big Twin 33-2021

    S&S CYCLE Pinion Shaft - Big Twin 33-2021

    S&S CYCLE

    MSRP: $205.95
    Now: $185.36
    Was: $205.95
    The S&S Cycle Pinion Shaft is engineered for Big Twin engines that demand reliability under sustained load and high RPM conditions. A worn or damaged pinion shaft compromises primary drive efficiency...
    09210166
    SKU:
    09210166
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    MATERIAL:
    STEEL
    UNITS:
    EACH
    PRODUCT NAME:
    PINION SHAFT ASSEMBLY
    RIDING STYLE:
    STREET
    MSRP: $205.95
    Now: $185.36
    Was: $205.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $205.95
    Now: $185.36
    Was: $205.95
    Subtotal:
  • On Sale
    S&S CYCLE Pinion Shaft - Big Twin 33-2024

    S&S CYCLE Pinion Shaft - Big Twin 33-2024

    S&S CYCLE

    MSRP: $199.95
    Now: $179.96
    Was: $199.95
    The S&S Cycle Pinion Shaft is engineered for Big Twin engines that demand reliable, precision-machined drivetrain components. A quality pinion shaft ensures smooth power delivery and longevity under...
    09210167
    SKU:
    09210167
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    MATERIAL:
    STEEL
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    PINION SHAFT ASSEMBLY
    MSRP: $199.95
    Now: $179.96
    Was: $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $199.95
    Now: $179.96
    Was: $199.95
    Subtotal:
  • On Sale
    S&S CYCLE Pinion Shaft - Big Twin 33-2027

    S&S CYCLE Pinion Shaft - Big Twin 33-2027

    S&S CYCLE

    MSRP: $183.95
    Now: $165.56
    Was: $183.95
    The S&S Cycle Pinion Shaft is a critical drivetrain component for Big Twin engines, engineered to handle the increased torque loads of performance builds. Whether you're upgrading your primary drive...
    09210168
    SKU:
    09210168
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    UNITS:
    EACH
    MATERIAL:
    STEEL
    PRODUCT NAME:
    PINION SHAFT ASSEMBLY
    RIDING STYLE:
    STREET
    MSRP: $183.95
    Now: $165.56
    Was: $183.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $183.95
    Now: $165.56
    Was: $183.95
    Subtotal:
  • On Sale
    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0361

    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0361

    S&S CYCLE

    MSRP: $1,695.95
    Now: $1,526.36
    Was: $1,695.95
    If you're building a high-output stroker engine, your factory flywheel won't cut it. The S&S CYCLE Stroker Flywheel is engineered to handle the increased loads and rotational forces of a larger...
    09210524
    SKU:
    09210524
    Availability:
    Ships Same Business Day
    Weight:
    39.40 LBS
    STROKE LENGTH IMPERIAL:
    4-3/8'
    ENGINE TYPE:
    'A' MOTOR
    FEATURES:
    WITHOUT SPROCKET BEARING RACE
    PRODUCT NAME:
    FLYWHEEL ASSEMBLY
    RIDING STYLE:
    STREET
    MATERIAL:
    STEEL
    UNITS:
    EACH
    MSRP: $1,695.95
    Now: $1,526.36
    Was: $1,695.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,695.95
    Now: $1,526.36
    Was: $1,695.95
    Subtotal:
  • On Sale
    S&S CYCLE Motor Sprocket Shaft Assembly '36-'51 Big Twin 33-2001

    S&S CYCLE Motor Sprocket Shaft Assembly '36-'51 Big Twin 33-2001

    S&S CYCLE

    MSRP: $183.95
    Now: $165.56
    Was: $183.95
    The S&S Cycle Motor Sprocket Shaft Assembly is the foundation of reliable primary drive engagement on your Big Twin. A worn or damaged sprocket shaft compromises both power delivery and bearing...
    09210556
    SKU:
    09210556
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    PRODUCT NAME:
    SPROCKET SHAFT
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    MSRP: $183.95
    Now: $165.56
    Was: $183.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $183.95
    Now: $165.56
    Was: $183.95
    Subtotal:
  • On Sale
    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0396

    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0396

    S&S CYCLE

    MSRP: $1,794.95
    Now: $1,615.46
    Was: $1,794.95
    If you're pushing your Twin Cam beyond stock limits, a quality flywheel is non-negotiable. The S&S Cycle Stroker Flywheel handles the increased rotational demands of a stroker build while maintaining...
    09220120
    SKU:
    09220120
    Availability:
    Ships Same Business Day
    Weight:
    38.73 LBS
    FEATURES:
    WITH SPROCKET BEARING RACE
    MATERIAL:
    STEEL
    PRODUCT NAME:
    FLYWHEEL ASSEMBLY
    UNITS:
    EACH
    ENGINE TYPE:
    'B' MOTOR
    RIDING STYLE:
    STREET
    STROKE LENGTH IMPERIAL:
    4'
    MSRP: $1,794.95
    Now: $1,615.46
    Was: $1,794.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,794.95
    Now: $1,615.46
    Was: $1,794.95
    Subtotal:
  • On Sale
    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0352

    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0352

    S&S CYCLE

    MSRP: $1,695.95
    Now: $1,526.36
    Was: $1,695.95
    If you're building a high-displacement stroker engine, your stock flywheel won't cut it. The S&S CYCLE Stroker Flywheel is engineered to handle the increased rotational loads and stress that come...
    09220121
    SKU:
    09220121
    Availability:
    Ships Same Business Day
    Weight:
    38.73 LBS
    PRODUCT NAME:
    FLYWHEEL ASSEMBLY
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    STROKE LENGTH IMPERIAL:
    4-3/8'
    ENGINE TYPE:
    'A' MOTOR
    FEATURES:
    WITH SPROCKET BEARING RACE
    MATERIAL:
    STEEL
    MSRP: $1,695.95
    Now: $1,526.36
    Was: $1,695.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,695.95
    Now: $1,526.36
    Was: $1,695.95
    Subtotal:
  • On Sale
    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0358

    S&S CYCLE Flywheel - Stroker - Twin Cam 320-0358

    S&S CYCLE

    MSRP: $1,795.95
    Now: $1,616.36
    Was: $1,795.95
    If you're pushing your Twin Cam engine toward higher displacement and increased power output, the stock flywheel becomes your limiting factor. The S&S CYCLE Stroker Flywheel is engineered to handle...
    09220122
    SKU:
    09220122
    Availability:
    Ships Same Business Day
    Weight:
    39.44 LBS
    PRODUCT NAME:
    FLYWHEEL ASSEMBLY
    UNITS:
    EACH
    FEATURES:
    WITH SPROCKET BEARING RACE
    MATERIAL:
    STEEL
    STROKE LENGTH IMPERIAL:
    4-3/8'
    ENGINE TYPE:
    'B' MOTOR
    RIDING STYLE:
    STREET
    MSRP: $1,795.95
    Now: $1,616.36
    Was: $1,795.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $1,795.95
    Now: $1,616.36
    Was: $1,795.95
    Subtotal:
  • Total: items /

Adding your products to cart

S&S Cycle
 S&S Cycle stands as a towering icon in the motorcycle industry, renowned for its unwavering commitment to excellence and innovation in performance motorcycle parts. Founded in 1958 by the dynamic duo of George J. Smith and Stanley Stankos, S&S Cycle has carved its niche as the premier engineer and manufacturer of motorcycle engines and parts in America. Originating from a passion for racing, the company has spent over six decades perfecting the art of motorcycle performance, ensuring each piece that comes out of their factory not only meets but exceeds the high expectations of the powersports community. With a deep-rooted history in enhancing the power and performance of Harley-Davidson® motorcycles, S&S Cycle is the go-to brand for enthusiasts seeking unmatched quality and proven performance.

 

 S&S Cycle Parts
 S&S Cycle's product line extends far beyond just engines; it encompasses a broad array of components designed to elevate the performance of your motorcycle. From the initial solid lifter conversion kit featuring lightweight aluminum pushrods to state-of-the-art carburetors, air cleaners, and throttle bodies, every part is engineered with precision. The brand's dedication to innovation means continually refining and expanding their offerings to include everything a motorcycle might need for optimal performance and reliability.

 

 S&S Cycle Engines
 At the heart of S&S Cycle's legacy are its engines. Renowned for their robustness and reliability, S&S engines come in various styles, including the iconic Knucklehead, Shovelhead, Panhead, Evolution-style, and Twin-cam style engines. Each engine, like the T143 Assembled Long Block Engine, is meticulously constructed to provide unmatched power and torque, transforming any motorcycle into a high-performance machine. S&S's commitment to quality ensures that whether you're cruising the streets or dominating the racetrack, their engines will deliver unparalleled performance.

 

 S&S Cams
 S&S cams are designed to unlock the full potential of your motorcycle's engine. With a focus on maximizing horsepower, torque, and overall engine efficiency, S&S cams are a critical component for anyone looking to boost their bike's performance. Each cam is the result of exhaustive research and development, ensuring compatibility and impressive gains across various riding conditions. Whether you're upgrading an existing engine or building a custom setup, S&S cams are essential for achieving peak performance.

 

 S&S Motorcycle Exhausts
 To complement their engines and performance parts, S&S Cycle also offers a range of high-quality motorcycle exhaust systems. These exhausts are not only built to withstand the rigors of high-performance riding but are also designed to optimize exhaust flow, enhancing both sound and power output. From aggressive race-inspired designs to more subdued styles for daily riding, S&S Cycle's exhaust systems combine performance improvements with aesthetic appeal, making them a favorite among discerning riders.

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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