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 Solenoid Mount Gasket 60645-65
JAMES GASKET
$9.70Made in the U.S.A.DS174230- SKU:
- DS174230
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- FEATURES:
- INCLUDES ADHESIVE
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- SOLENOID
- MOUNTING POSITION:
- INNER
- MATERIAL:
- FOAM
$9.70 -
JAMES GASKET Intake Manifold O-Ring 27060-55
JAMES GASKET
$6.40JAMES GASKET Intake Manifold O-RingDS174220- SKU:
- DS174220
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- APPLICATION:
- INTAKE MANIFOLD
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- O-RING
$6.40 -
JAMES GASKET Sprocket Shaft Seal - Big Twin 24776-40-X
JAMES GASKET
$32.95JAMES GASKET Sprocket Shaft Seal - Big TwinDS174205- SKU:
- DS174205
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- APPLICATION:
- MOTOR SHAFT
$32.95 -
JAMES GASKET Motor Gasket Kit - Twin Cam - 95" 17055-99
JAMES GASKET
$130.95Contain gaskets, oil seals and O-rings necessary to completely rebuild a Panhead engine, Made in the U.S.A.DS174204- SKU:
- DS174204
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- THICKNESS METRIC:
- 1.17 MM
- TYPE:
- COMPLETE
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3.875'
- THICKNESS IMPERIAL:
- 0,046'
- TYPE:
- MOTOR
$130.95 -
JAMES GASKET 1 Piece Rocker Gasket - Evo 16779-99-X
JAMES GASKET
$37.95Made from a solid steel sheet coated on two sides with a high-temperature elastomer. Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal coating fills in minor imperfections in the flanges and provides...DS174203- SKU:
- DS174203
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- RUBBER
- MOUNTING POSITION:
- LOWER
- TYPE:
- ROCKER BOX
- FEATURES:
- BEADED
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET
- UNITS:
- PAIR
$37.95 -
JAMES GASKET Cam Cover Gasket Silicon - Big Twin 25225-93-X
JAMES GASKET
$26.00Replacement gaskets for cam chestsDS174202- SKU:
- DS174202
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- CAM COVER
- FEATURES:
- BEADED
- MATERIAL:
- SILICONE
- PRODUCT NAME:
- GASKET
- UNITS:
- 5 PACK
$26.00 -
JAMES GASKET Cam Cover Gasket Silicon - Big Twin 25225-70-X
JAMES GASKET
$26.00Replacement gaskets for cam chestsDS174201- SKU:
- DS174201
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- UNITS:
- 5 PACK
- MATERIAL:
- PAPER
- THICKNESS METRIC:
- 0.79 MM
- TYPE:
- CAM COVER
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,79 MM (0,031')
- THICKNESS IMPERIAL:
- 0,031'
- FEATURES:
- BEADED
- MATERIAL:
- SILICONE
- PRODUCT NAME:
- GASKET
$26.00 -
JAMES GASKET Cam Cover Gasket - Big Twin 25225-70-B
JAMES GASKET
$28.30Replacement gaskets for cam chestsDS174200- SKU:
- DS174200
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- TYPE:
- CAM COVER
- UNITS:
- 10 PACK
- THICKNESS IMPERIAL:
- 0,031'
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,79 MM (0,031')
- THICKNESS METRIC:
- 0.79 MM
$28.30 -
JAMES GASKET Push Rod Cover Cork - XL 17955-36-D
JAMES GASKET
$7.95Made in the U.S.A.DS174190- SKU:
- DS174190
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- APPLICATION:
- PUSHROD COVER
$7.95 -
JAMES GASKET Rocker Cover Gasket - .030" 17540-69-A
JAMES GASKET
$18.40Made from a solid steel sheet coated on two sides with a high-temperature elastomer. Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal coating fills in minor imperfections in the flanges and provides...DS174182- SKU:
- DS174182
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 0.79 MM
- TYPE:
- ROCKER COVER
- THICKNESS IMPERIAL:
- 0,031'
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,79 MM (0,031')
- UNITS:
- 10 PACK
$18.40 -
JAMES GASKET Rocker Cover Gasket 17540-69
JAMES GASKET
$16.50Made from a solid steel sheet coated on two sides with a high-temperature elastomer. Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal coating fills in minor imperfections in the flanges and provides...DS174180- SKU:
- DS174180
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- THICKNESS:
- 0,51 MM (0,020')
- TYPE:
- ROCKER COVER
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
$16.50 -
JAMES GASKET Bearing Housing Gasket - Silicon - 5 Speed 35652-79-X
JAMES GASKET
$20.70Made in the U.S.A.DS174133- SKU:
- DS174133
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- BEARING HOUSING
- UNITS:
- 5 PACK
- FEATURES:
- BEADED
- PRODUCT NAME:
- GASKET
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
$20.70 -
JAMES GASKET Bearing Housing Gasket - 5 Speed 35652-79-A
JAMES GASKET
$21.10Made in the U.S.A.DS174131- SKU:
- DS174131
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- TYPE:
- BEARING HOUSING
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
$21.10 -
JAMES GASKET Primary Cover Gasket 34952-52
JAMES GASKET
$41.40Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174130- SKU:
- DS174130
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- THICKNESS IMPERIAL:
- 0,030'
- THICKNESS METRIC:
- 0.80 MM
- TYPE:
- COVER
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- STYLE:
- PRIMARY
$41.40 -
JAMES GASKET Cylinder Base Gasket - XL 16774-57
JAMES GASKET
$12.80Require no gasket sealer, Made in the U.S.A.DS174120- SKU:
- DS174120
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- CYLINDER BASE
- UNITS:
- 10 PACK
- DISPLACEMENT:
- 900 CC
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
$12.80 -
JAMES GASKET Steel Base Gasket - XL 16774-96
JAMES GASKET
$44.95Require no gasket sealer, Made in the U.S.A.DS174117- SKU:
- DS174117
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET
- UNITS:
- PAIR
- BORE SIZE IMPERIAL:
- STANDARD
- FEATURES:
- BEADED
- TYPE:
- CYLINDER BASE
$44.95 -
JAMES GASKET Metal Base Gasket with Silicone - Big Twin 16777-94
JAMES GASKET
$44.95Require no gasket sealer, Made in the U.S.A.DS174116- SKU:
- DS174116
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,017'
- THICKNESS METRIC:
- 0.43 MM
- UNITS:
- SET
- MATERIAL:
- RUBBER
- FEATURES:
- BEADED
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET
- TYPE:
- CYLINDER BASE
$44.95 -
JAMES GASKET Cylinder Base Gasket - XL 16774-72
JAMES GASKET
$11.40Require no gasket sealer, Made in the U.S.A.DS174110- SKU:
- DS174110
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- DISPLACEMENT:
- 1000 CC
- PRODUCT NAME:
- GASKET
- TYPE:
- CYLINDER BASE
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$11.40 -
JAMES GASKET Cylinder Head Gasket - XL 16769-72-A
JAMES GASKET
$43.20Made in the U.S.A.DS174080- SKU:
- DS174080
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- COPPER
- UNITS:
- 10 PACK
- DISPLACEMENT:
- 1000 CC
- THICKNESS:
- 0,41 MM (0,016')
- THICKNESS METRIC:
- 0.41 MM
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0.016'
$43.20 -
JAMES GASKET Cam Cover Gasket - XL 25263-81
JAMES GASKET
$32.30Replacement gaskets for cam chestsDS174075- SKU:
- DS174075
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MATERIAL:
- PAPER
- THICKNESS METRIC:
- 0.79 MM
- TYPE:
- CAM COVER
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,79 MM (0,031')
- THICKNESS IMPERIAL:
- 0,031'
- UNITS:
- 10 PACK
- PRODUCT NAME:
- GASKET
$32.30
