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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JAMES GASKET Carb Gasket - S&S Super E 29058-SSE
JAMES GASKET
$7.70A quality carb gasket is critical to maintaining proper fuel atomization and preventing air leaks that compromise throttle response and fuel economy. The JAMES GASKET Carb Gasket for S&S Super E carburetors delivers OEM-level sealing integrity without...09341612- SKU:
- 09341612
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- AIR CLEANER
- MOUNTING POSITION:
- AIR CLEANER TO CARBURETOR
- TYPE:
- CARBURETOR
- PRODUCT NAME:
- GASKET
- UNITS:
- 5 PACK
$7.70 -
JAMES GASKET Carb Gasket - S&S Super G 29058-SSG
JAMES GASKET
$7.70A properly sealed carburetor is fundamental to consistent jetting and reliable engine performance. The JAMES GASKET Carb Gasket for S&S Super G carburetors eliminates fuel seepage and air leaks that compromise air-fuel ratio stability. This OEM-quality...09341613- SKU:
- 09341613
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CARBURETOR
- MOUNTING POSITION:
- AIR CLEANER TO CARBURETOR
- PRODUCT NAME:
- GASKET
- UNITS:
- 5 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- AIR CLEANER
$7.70 -
On Sale
S&S CYCLE Top End Gasket Kit 90-9500
S&S CYCLE
MSRP: $203.95Now: $183.56Was: $203.95A quality top-end gasket kit is non-negotiable for maintaining compression integrity and preventing oil leakage in high-performance engines. The S&S Cycle 90-9500 delivers OEM-grade sealing across critical cylinder head surfaces, ensuring your engine...909500- SKU:
- 909500
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- BORE SIZE IMPERIAL:
- 3.500'
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- TYPE:
- TOP END
- RIDING STYLE:
- STREET
MSRP: $203.95Now: $183.56Was: $203.95 -
On Sale
S&S CYCLE Top End Gasket Kit - 3-5/8" 90-9501
S&S CYCLE
MSRP: $205.95Now: $185.36Was: $205.95A properly sealed top end is non-negotiable for maintaining compression and preventing oil weeping on high-performance engines. The S&S Cycle Top End Gasket Kit ensures critical sealing surfaces stay protected across your engine's most demanding...909501- SKU:
- 909501
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE SIZE IMPERIAL:
- 3.625'
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- UNITS:
- KIT
MSRP: $205.95Now: $185.36Was: $205.95 -
On Sale
S&S CYCLE Top End Gasket - 3-5/8" - Big Twin 90-9502
S&S CYCLE
MSRP: $102.95Now: $92.66Was: $102.95A top-end gasket kit is essential for maintaining proper sealing and compression in your Big Twin engine—any failure here directly impacts performance and reliability. The S&S CYCLE Top End Gasket kit delivers OEM-quality sealing with layered steel head...909502- SKU:
- 909502
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- BORE SIZE IMPERIAL:
- 3.625'
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- BORE SIZE:
- 3,625'
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
MSRP: $102.95Now: $92.66Was: $102.95 -
On Sale
S&S CYCLE Top End Gasket - 4" - Big Twin 90-9503
S&S CYCLE
MSRP: $94.95Now: $85.46Was: $94.95A properly sealed top end is foundational to engine reliability and performance—factory gaskets degrade over time, leading to oil weeps, compression loss, and potential engine damage. The S&S Cycle Top End Gasket delivers OEM-quality sealing with...909503- SKU:
- 909503
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- FEATURES:
- FOR '84 - '99 SUPER STOCK S&S EVOLUTION BIG TWIN
- TYPE:
- TOP END
- BORE SIZE IMPERIAL:
- 4.000'
- RIDING STYLE:
- STREET
MSRP: $94.95Now: $85.46Was: $94.95 -
On Sale
S&S CYCLE Top End Gasket - 3-7/8" - Twin Cam 90-9504
S&S CYCLE
MSRP: $137.95Now: $124.16Was: $137.95A proper top end gasket is non-negotiable for maintaining cylinder head integrity and preventing costly coolant and oil leaks. The S&S Cycle 3-7/8" gasket delivers the precision fit and material quality your Twin Cam 90 demands, ensuring a reliable seal...909504- SKU:
- 909504
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- BORE SIZE IMPERIAL:
- 3.875'
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- TYPE:
- TOP END
- FEATURES:
- FOR '99 - '06 SUPER STOCK S&S TWIN CAM
- PRODUCT NAME:
- GASKET KIT
MSRP: $137.95Now: $124.16Was: $137.95 -
On Sale
S&S CYCLE Top End Gasket - 4" - Twin Cam 90-9505
S&S CYCLE
MSRP: $106.95Now: $96.26Was: $106.95A quality top-end gasket is critical to maintaining compression integrity and preventing oil seepage in your Twin Cam engine. The S&S Cycle 4" gasket is engineered to exact OEM specifications and manufactured right here in the U.S.A., ensuring reliable...909505- SKU:
- 909505
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FEATURES:
- FOR '99 - '06 SUPER STOCK S&S TWIN CAM
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 4.000'
- RIDING STYLE:
- STREET
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
S&S CYCLE Top End Gasket Kit - 3.5" 90-9507
S&S CYCLE
MSRP: $117.95Now: $106.16Was: $117.95A quality top-end gasket kit is essential for maintaining cylinder head integrity and preventing coolant or oil seepage that compromises engine performance. The S&S Cycle 90-9507 delivers OEM-equivalent sealing with precision-engineered gaskets designed...909507- SKU:
- 909507
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- BORE SIZE IMPERIAL:
- 3.500'
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $117.95Now: $106.16Was: $117.95Qty in Cart: 0Quantity:Price:MSRP: $117.95Now: $106.16Was: $117.95Subtotal: -
On Sale
S&S CYCLE Replacement Rings 94-1210X
S&S CYCLE
MSRP: $67.95Now: $61.16Was: $67.95When you've invested in S&S pistons, you need replacement rings that match their precision engineering and durability. OEM replacement rings ensure your engine maintains the compression, seal integrity, and performance characteristics your build was...941210- SKU:
- 941210
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.625'
- PRODUCT NAME:
- PISTON RING
- TYPE:
- REPLACEMENT
- UNITS:
- SET
- PISTON SIZE IMPERIAL:
- STANDARD
MSRP: $67.95Now: $61.16Was: $67.95 -
On Sale
S&S CYCLE Replacement Rings 94-1211X
S&S CYCLE
MSRP: $64.95Now: $58.46Was: $64.95If you're running S&S performance pistons, OEM ring sets won't cut it—you need replacements engineered to match your upgraded internals. The S&S CYCLE 94-1211X ring set delivers the compression, sealing, and durability required to maintain peak...941211- SKU:
- 941211
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PISTON SIZE IMPERIAL:
- +0.010'
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.625'
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- TYPE:
- REPLACEMENT
MSRP: $64.95Now: $58.46Was: $64.95 -
On Sale
S&S CYCLE Replacement Rings 94-1212X
S&S CYCLE
MSRP: $64.95Now: $58.46Was: $64.95If you're running S&S pistons, using OEM or substandard rings is leaving horsepower on the table. S&S Cycle replacement rings are engineered to precise tolerances that match your high-performance pistons, ensuring optimal compression, reduced blowby, and...941212- SKU:
- 941212
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.625'
- PISTON SIZE IMPERIAL:
- +0.020'
- PRODUCT NAME:
- PISTON RING
- TYPE:
- REPLACEMENT
- UNITS:
- SET
MSRP: $64.95Now: $58.46Was: $64.95 -
On Sale
S&S CYCLE Replacement Rings 94-1300X
S&S CYCLE
MSRP: $63.95Now: $57.56Was: $63.95Maintaining proper ring seal is critical to engine performance—worn or damaged piston rings lead to compression loss, oil consumption, and reduced horsepower. The S&S Cycle Replacement Rings 94-1300X are engineered to restore factory specifications and...941300- SKU:
- 941300
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PISTON SIZE IMPERIAL:
- STANDARD
- BORE SIZE IMPERIAL:
- 4.000'
- RIDING STYLE:
- STREET
- TYPE:
- REPLACEMENT
- UNITS:
- SET
- PRODUCT NAME:
- PISTON RING
MSRP: $63.95Now: $57.56Was: $63.95 -
On Sale
S&S CYCLE Replacement Rings 94-1301X
S&S CYCLE
MSRP: $63.95Now: $57.56Was: $63.95If you're running S&S Performance pistons, OEM replacement rings won't cut it—you need rings engineered to match the precision tolerances and high-RPM demands of your build. S&S Cycle Replacement Rings deliver the seal integrity and durability required...941301- SKU:
- 941301
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE IMPERIAL:
- 4.000'
- PRODUCT NAME:
- PISTON RING
- TYPE:
- REPLACEMENT
- UNITS:
- SET
- PISTON SIZE IMPERIAL:
- +0.010'
- RIDING STYLE:
- STREET
MSRP: $63.95Now: $57.56Was: $63.95 -
On Sale
S&S CYCLE Replacement Rings 94-1400X
S&S CYCLE
MSRP: $63.95Now: $57.56Was: $63.95When you're running S&S pistons at the limits of performance, factory-spec rings won't cut it. S&S Cycle replacement rings are engineered to match your high-displacement, high-compression setup, ensuring proper ring seal, minimal blow-by, and maximum...941400- SKU:
- 941400
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 4.125'
- PRODUCT NAME:
- PISTON RING
- TYPE:
- REPLACEMENT
- UNITS:
- SET
- PISTON SIZE IMPERIAL:
- STANDARD
MSRP: $63.95Now: $57.56Was: $63.95 -
On Sale
S&S CYCLE Replacement Rings 94-1401X
S&S CYCLE
MSRP: $66.95Now: $60.26Was: $66.95Maintaining proper ring seal is critical to engine performance, compression, and longevity—especially in high-performance applications where stock tolerances simply won't cut it. S&S Cycle replacement rings ensure you're running OEM-quality components...941401- SKU:
- 941401
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PISTON SIZE IMPERIAL:
- +0.010'
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PISTON RING
- TYPE:
- REPLACEMENT
- UNITS:
- SET
- BORE SIZE IMPERIAL:
- 4.125'
MSRP: $66.95Now: $60.26Was: $66.95 -
On Sale
S&S CYCLE Adjustable Pushrods - XL 93-5022
S&S CYCLE
MSRP: $152.95Now: $137.66Was: $152.95Precise valve timing is the foundation of any high-performance engine build, and S&S Cycle's adjustable pushrods give you the fine-tuning capability to dial in your valvetrain exactly as your application demands. Built from .4375" diameter chromoly...935022- SKU:
- 935022
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MATERIAL:
- CHROMOLY STEEL
- UNITS:
- 4 PACK
- PRODUCT NAME:
- PUSHROD SET
- RIDING STYLE:
- STREET
- STYLE:
- ADJUSTABLE
MSRP: $152.95Now: $137.66Was: $152.95 -
On Sale
S&S CYCLE Adjustable Pushrods - XL 93-5033
S&S CYCLE
MSRP: $152.95Now: $137.66Was: $152.95Precise valve timing is non-negotiable in high-performance engines, and worn or incorrect pushrods compromise both reliability and power output. S&S Cycle's adjustable pushrods give you the ability to dial in exact valve clearances without swapping...935033- SKU:
- 935033
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- PUSHROD SET
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
- MATERIAL:
- CHROMOLY STEEL
- STYLE:
- ADJUSTABLE
MSRP: $152.95Now: $137.66Was: $152.95 -
On Sale
S&S CYCLE Adjustable Pushrods - Big Twin 93-5076
S&S CYCLE
MSRP: $152.95Now: $137.66Was: $152.95Precise valve timing is non-negotiable in high-performance Big Twin engines, and stock pushrods often lack the adjustability needed for custom builds and extensive modifications. The S&S Cycle Adjustable Pushrods deliver the fine-tuning capability...935076- SKU:
- 935076
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- STYLE:
- ADJUSTABLE
- MATERIAL:
- CHROMOLY STEEL
- UNITS:
- 4 PACK
- PRODUCT NAME:
- PUSHROD SET
- RIDING STYLE:
- STREET
MSRP: $152.95Now: $137.66Was: $152.95 -
On Sale
S&S CYCLE Rocker Arm Shafts - Twin Cam 90-4036
S&S CYCLE
MSRP: $59.95Now: $53.96Was: $59.95The S&S Cycle Rocker Arm Shafts are engineered to deliver consistent valve actuation and durability in high-performance Twin Cam applications. These precision-manufactured shafts maintain tight tolerances under sustained rpm and load, reducing valve...904036- SKU:
- 904036
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MOUNTING POSITION:
- FRONT
- APPLICATION:
- INTAKE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SHAFT
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- TYPE:
- ROCKER ARM
- UNITS:
- SET OF 4
MSRP: $59.95Now: $53.96Was: $59.95
