Harley Engine
Harley Bike Engine Parts at JJ Motorsports
Rebuild and boost your Harley's engine with premium parts from JJ Motorsports. Our inventory features complete gasket sets, piston kits, oil filters, pushrod tubes, and coolers designed for maximum strength, leak-free sealing, and high-performance in extreme conditions. Compatible with Big Twins, Softail, Touring, and more, these components support top-end overhauls, oil management, and durability for street rides or custom builds.
Shop trusted brands like Drag Specialties for magnetic filters and Wiseco for forged pistons. Explore related categories such as Harley air and fuel for carb tuning or Harley drivetrain for transmission upgrades.
Top Harley Engine Products
- DRAG SPECIALTIES Magnetic Ring Oil Filter - Chrome - 3-1/4" 140003HP-BX18 – Captures metal particles with pressure relief.
- WISECO Piston Kit .010 .883 XL K1656 – Forged aluminum with rings, pins, and circlips for rebuilds.
- DRAG SPECIALTIES Pushrod Tube Kit Big Twin 75711 – Includes tubes, clips, cups, and springs for complete engine.
- ULTRACOOL Below Regulator Mount Oil Cooler Stainless Steel RF-2CSS – Fits S&S 111/124/143 engines with machined adapter.
- PAUGHCO Ribbed Teardrop Air Cleaner 701-200 – Chrome-plated aluminum with mini filter.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
S&S CYCLE NUT,PINION GEAR,5/8-24 ,B 33-4244
S&S CYCLE
MSRP: $53.95Now: $48.56Was: $53.95Precision matters when you're building or rebuilding a high-performance engine, and this S&S Cycle pinion gear nut demands your attention. A properly secured pinion gear is essential for reliable...09500808- SKU:
- 09500808
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CRANKPIN NUT
MSRP: $53.95Now: $48.56Was: $53.95 -
On Sale
S&S CYCLE Pinion Gear - Black 33-4147
S&S CYCLE
MSRP: $112.95Now: $101.66Was: $112.95A precision pinion gear is fundamental to reliable primary drive performance—mismatched or worn gears compromise power transfer and accelerate component wear. The S&S Cycle 33-4147 delivers...09500882- SKU:
- 09500882
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BASE COLOR:
- BLACK
- TYPE:
- PINION SHAFT GEAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- GEAR
MSRP: $112.95Now: $101.66Was: $112.95Qty in Cart: 0Quantity:Price:MSRP: $112.95Now: $101.66Was: $112.95Subtotal: -
On Sale
S&S CYCLE Pinion Gear - Orange 33-4141
S&S CYCLE
MSRP: $112.95Now: $101.66Was: $112.95A precision pinion gear is fundamental to reliable primary drive performance in high-revving engines. The S&S Cycle Orange 33-4141 is manufactured to exacting tolerances and heat-treated for...09500883- SKU:
- 09500883
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BASE COLOR:
- ORANGE
- TYPE:
- PINION SHAFT GEAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ORANGE
- PRODUCT NAME:
- GEAR
MSRP: $112.95Now: $101.66Was: $112.95 -
On Sale
S&S CYCLE Pinion Gear - White 33-4142
S&S CYCLE
MSRP: $112.95Now: $101.66Was: $112.95A quality pinion gear is foundational to reliable drivetrain performance, especially in high-demand racing and performance applications where gear failure can end your event or damage downstream...09500884- SKU:
- 09500884
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TYPE:
- PINION SHAFT GEAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BASE COLOR:
- WHITE
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- GEAR
MSRP: $112.95Now: $101.66Was: $112.95Qty in Cart: 0Quantity:Price:MSRP: $112.95Now: $101.66Was: $112.95Subtotal: -
On Sale
S&S CYCLE Sprocket Spacer - Big Twin 31-4011
S&S CYCLE
MSRP: $40.95Now: $36.86Was: $40.95If you're running S&S Super Stock® or Special Application Crankcases, precise sprocket alignment is critical to maintaining chain tension and preventing premature wear on your drivetrain. This OEM...09500885- SKU:
- 09500885
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPACER
- UNITS:
- EACH
- BASE FINISH:
- NATURAL
- TYPE:
- COUNTERBALANCE SHAFT
MSRP: $40.95Now: $36.86Was: $40.95 -
On Sale
S&S CYCLE Key 106-1348
S&S CYCLE
MSRP: $9.95Now: $8.96Was: $9.95Proper ignition timing depends on a secure crankshaft key that won't slip under load. The S&S Cycle 106-1348 is a precision-engineered steel key designed for reliable engine management in...09500805- SKU:
- 09500805
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- STEEL
- MATERIAL:
- STEEL
- PRODUCT NAME:
- KEY
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- PARALLEL
MSRP: $9.95Now: $8.96Was: $9.95 -
On Sale
S&S CYCLE Cam Chain Install Kit - M8 330-0619
S&S CYCLE
MSRP: $49.95Now: $44.96Was: $49.95Servicing your Twin Cam cam drive system requires precision and the right tools—this S&S Cycle kit eliminates guesswork by bundling every component you need for a successful installation or...09500861- SKU:
- 09500861
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- INSTALL KIT
- TYPE:
- CAM
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- STYLE:
- CHAIN DRIVE
MSRP: $49.95Now: $44.96Was: $49.95 -
On Sale
S&S CYCLE Cam Gear Install Kit - M8 330-0623
S&S CYCLE
MSRP: $61.95Now: $55.76Was: $61.95Servicing or replacing your Twin Cam cam drive requires precision components and complete hardware—this kit eliminates multiple supplier orders and ensures you have everything needed for a...09500862- SKU:
- 09500862
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- CAM
- PRODUCT NAME:
- INSTALL KIT
- RIDING STYLE:
- STREET
- STYLE:
- GEAR DRIVE
- UNITS:
- KIT
MSRP: $61.95Now: $55.76Was: $61.95 -
On Sale
S&S CYCLE Pinion Gear - Undersized - Twin Cam/M8 330-0626
S&S CYCLE
MSRP: $132.95Now: $119.66Was: $132.95If you're running gear-driven cams on your Twin Cam or M8 Harley, precise pinion gear sizing is critical to achieving proper valve train geometry and minimizing noise. This S&S undersized pinion gear...09500863- SKU:
- 09500863
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- STREET
- TYPE:
- PINION SHAFT GEAR
- UNITS:
- EACH
- PRODUCT NAME:
- GEAR
- SIZE:
- UNDERSIZE
MSRP: $132.95Now: $119.66Was: $132.95 -
On Sale
S&S CYCLE Cam - 551 Series - Chain Drive 330-0002
S&S CYCLE
MSRP: $418.95Now: $377.06Was: $418.95If you're running a touring bike and tired of timing chain lash robbing you of power and precision, the S&S Cycle 551 Series Cam with gear drive eliminates the slack entirely—delivering more...09250526- SKU:
- 09250526
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 102°
- INTAKE LIFT IMPERIAL:
- 0.550'
- INTAKE OPEN IMPERIAL:
- 18°
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.170'
- EXHAUST LIFT IMPERIAL:
- 0.550'
- INTAKE CLOSE IMPERIAL:
- 20°
- INTAKE DURATION IMPERIAL:
- 215°
- INTAKE LOBE CENTERLINE IMPERIAL:
- 91°
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 237°
- GRIND:
- 551 SERIES
- INTAKE LIFT AT TDC IMPERIAL:
- 0.178'
- TYPE:
- CHAIN
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 15°
- EXHAUST OPEN IMPERIAL:
- 39°
MSRP: $418.95Now: $377.06Was: $418.95 -
On Sale
S&S CYCLE Cam Kit - Chain - 570 Series 330-0003
S&S CYCLE
MSRP: $418.95Now: $377.06Was: $418.95If you're running a Twin Cam engine and want repeatable, precise valve timing without the slop of a stock chain, a gear drive kit is a non-negotiable upgrade. S&S Cycle's chain-drive solution...09250527- SKU:
- 09250527
- Availability:
- Ships Same Business Day
- Weight:
- 3.99 LBS
- INTAKE LOBE CENTERLINE IMPERIAL:
- 100°
- TYPE:
- CHAIN
- APPLICATION:
- EXHAUST
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.179'
- INTAKE LIFT IMPERIAL:
- 0.570'
- APPLICATION:
- INTAKE
- EXHAUST OPEN IMPERIAL:
- 55°
- GRIND:
- 570 SERIES
- INTAKE DURATION IMPERIAL:
- 240°
- INTAKE OPEN IMPERIAL:
- 20°
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- EXHAUST DURATION IMPERIAL:
- 255°
- EXHAUST LIFT IMPERIAL:
- 0.570'
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 107.5°
- INTAKE LIFT AT TDC IMPERIAL:
- 0.187'
- UNITS:
- KIT
MSRP: $418.95Now: $377.06Was: $418.95 -
On Sale
S&S CYCLE Cam - 583 Series - Chain Drive 330-0004
S&S CYCLE
MSRP: $418.95Now: $377.06Was: $418.95Timing chain lash and wear directly compromise valve timing accuracy, robbing you of consistent performance and precision across engine cycles. The S&S CYCLE 583 Series Cam eliminates this...09250528- SKU:
- 09250528
- Availability:
- Ships Same Business Day
- Weight:
- 4.01 LBS
- INTAKE CLOSE IMPERIAL:
- 15°
- INTAKE DURATION IMPERIAL:
- 204°
- INTAKE LIFT IMPERIAL:
- 0.583'
- PRODUCT NAME:
- CAM KIT
- TYPE:
- CHAIN
- INTAKE LIFT AT TDC IMPERIAL:
- 0.113'
- INTAKE LOBE CENTERLINE IMPERIAL:
- 96.5°
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 22°
- EXHAUST DURATION IMPERIAL:
- 262°
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.206'
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 107°
- EXHAUST OPEN IMPERIAL:
- 60°
- INTAKE OPEN IMPERIAL:
- 8°
- APPLICATION:
- INTAKE
- EXHAUST LIFT IMPERIAL:
- 0.583'
- GRIND:
- 583 SERIES
- UNITS:
- KIT
MSRP: $418.95Now: $377.06Was: $418.95 -
On Sale
S&S CYCLE Cam Kit - Chain Drive - 585 Series 330-0005
S&S CYCLE
MSRP: $399.95Now: $359.96Was: $399.95If you're running a chain-drive system and need predictable, strong power delivery in the critical mid-range, the S&S CYCLE 585 Series cam kit is engineered to maximize your engine's potential...09250529- SKU:
- 09250529
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.179'
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN
- APPLICATION:
- EXHAUST
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 110°
- EXHAUST OPEN IMPERIAL:
- 60°
- GRIND:
- 585 SERIES
- INTAKE CLOSE IMPERIAL:
- 45°
- INTAKE DURATION IMPERIAL:
- 245°
- INTAKE LIFT AT TDC IMPERIAL:
- 0.186'
- EXHAUST CLOSE IMPERIAL:
- 20°
- EXHAUST LIFT IMPERIAL:
- 0.585'
- INTAKE LIFT IMPERIAL:
- 0.585'
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 260°
- INTAKE LOBE CENTERLINE IMPERIAL:
- 102.5°
- INTAKE OPEN IMPERIAL:
- 20°
MSRP: $399.95Now: $359.96Was: $399.95 -
On Sale
S&S CYCLE Cam Kit - 625C - Chain Drive 330-0006
S&S CYCLE
MSRP: $409.95Now: $368.96Was: $409.95If you're looking to unlock meaningful horsepower gains without a complete engine overhaul, the S&S Cycle 625C cam kit delivers solid performance improvement at a price that won't drain your budget...09250530- SKU:
- 09250530
- Availability:
- Ships Same Business Day
- Weight:
- 4.05 LBS
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 20°
- EXHAUST OPEN IMPERIAL:
- 60°
- INTAKE LOBE CENTERLINE IMPERIAL:
- 107.5°
- TYPE:
- CHAIN
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 110°
- FEATURES:
- CAM KIT
- GRIND:
- 625 SERIES
- INTAKE DURATION IMPERIAL:
- 255°
- APPLICATION:
- INTAKE
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.184'
- INTAKE CLOSE IMPERIAL:
- 55°
- INTAKE LIFT IMPERIAL:
- 0.625'
- INTAKE OPEN IMPERIAL:
- 20°
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- EXHAUST DURATION IMPERIAL:
- 260°
- EXHAUST LIFT IMPERIAL:
- 0.625'
- UNITS:
- KIT
MSRP: $409.95Now: $368.96Was: $409.95Qty in Cart: 0Quantity:Price:MSRP: $409.95Now: $368.96Was: $409.95Subtotal: -
On Sale
S&S CYCLE Easy Start Cam Kit - Twin Cam 106-4947
S&S CYCLE
MSRP: $549.95Now: $494.96Was: $549.95Cold starts on high-compression big-twin engines can drain your battery and wear out your starter before the engine even fires. The S&S Cycle Easy Start Cam Kit solves this problem by temporarily...09250443- SKU:
- 09250443
- Availability:
- Ships Same Business Day
- Weight:
- 3.87 LBS
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 17°
- EXHAUST DURATION IMPERIAL:
- 237°
- EXHAUST LIFT IMPERIAL:
- 0.550'
- INTAKE CLOSE IMPERIAL:
- 19°
- INTAKE LIFT AT TDC IMPERIAL:
- 0.178'
- INTAKE OPEN IMPERIAL:
- 17°
- TYPE:
- CHAIN
- APPLICATION:
- INTAKE
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 102°
- INTAKE LIFT IMPERIAL:
- 0.550'
- INTAKE LOBE CENTERLINE IMPERIAL:
- 91°
- PRODUCT NAME:
- CAM KIT
- RIDING STYLE:
- STREET
- EXHAUST OPEN IMPERIAL:
- 41°
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.170'
- FEATURES:
- INCLUDES INSTALLATION KIT
- GRIND:
- 551 SERIES
- INTAKE DURATION IMPERIAL:
- 215°
- MODEL:
- EASY START
- UNITS:
- KIT
MSRP: $549.95Now: $494.96Was: $549.95 -
On Sale
S&S CYCLE Adjustable Pushrod Kit - XL 930-0024
S&S CYCLE
MSRP: $278.95Now: $251.06Was: $278.95Valve train precision directly impacts engine reliability and performance consistency—especially under high RPM conditions where pushrod geometry matters. The S&S CYCLE Adjustable Pushrod Kit...09280037- SKU:
- 09280037
- Availability:
- Ships Same Business Day
- Weight:
- 2.07 LBS
- STYLE:
- ADJUSTABLE
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- PUSHROD KIT
- MATERIAL:
- CHROMOLY STEEL
MSRP: $278.95Now: $251.06Was: $278.95 -
On Sale
S&S CYCLE Billet Oil Pump 31-6206
S&S CYCLE
MSRP: $499.95Now: $449.96Was: $499.95If you're running a high-performance engine or building a custom cruiser, oil flow and pressure consistency are non-negotiable. The S&S CYCLE Billet Oil Pump delivers superior circulation with a...DS194061- SKU:
- DS194061
- Availability:
- Ships Same Business Day
- Weight:
- 2.82 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- PUMP
- RIDING STYLE:
- STREET
- TYPE:
- OIL
MSRP: $499.95Now: $449.96Was: $499.95 -
On Sale
S&S CYCLE Billet Oil Pump 31-6203
S&S CYCLE
MSRP: $445.95Now: $401.36Was: $445.95The S&S Cycle Billet Oil Pump 31-6203 delivers superior oil circulation and pressure consistency compared to stock pumps, making it essential for high-performance engines that demand reliable...DS194062- SKU:
- DS194062
- Availability:
- Ships Same Business Day
- Weight:
- 3.06 LBS
- PRODUCT NAME:
- PUMP
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- KIT
MSRP: $445.95Now: $401.36Was: $445.95 -
On Sale
S&S CYCLE Billet Oil Pump 31-6200
S&S CYCLE
MSRP: $445.95Now: $401.36Was: $445.95The S&S Cycle Billet Oil Pump 31-6200 delivers superior oil flow and pressure consistency compared to stock units, ensuring your engine receives reliable lubrication under high-RPM and...DS194063- SKU:
- DS194063
- Availability:
- Ships Same Business Day
- Weight:
- 2.82 LBS
- UNITS:
- KIT
- FLOW RATE:
- STANDARD
- PRODUCT NAME:
- PUMP
- RIDING STYLE:
- STREET
- TYPE:
- OIL
MSRP: $445.95Now: $401.36Was: $445.95 -
On Sale
S&S CYCLE Replacement Gaskets 31-6273
S&S CYCLE
MSRP: $17.95Now: $16.16Was: $17.95Engine gaskets are the critical seals that prevent oil, coolant, and combustion leaks—and worn gaskets compromise performance and reliability. S&S Cycle's replacement gaskets are engineered to OEM...DS194064- SKU:
- DS194064
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- OIL PUMP
MSRP: $17.95Now: $16.16Was: $17.95
