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 Inspection Cover Gasket - 5 Speed 34906-79
JAMES GASKET
$18.40Latest additions to our line of high-quality genuine James gaskets, seals and O-rings, Cover seals are a seal, not a gasket, Cover seals are molded rubber, beaded oil seals with metal inserts and work with all inspection and derby covers; fit billet,...DS174325- SKU:
- DS174325
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- PRIMARY
- THICKNESS:
- 0,80 MM (0,030')
- THICKNESS IMPERIAL:
- 0,030'
- THICKNESS METRIC:
- 0.80 MM
- TYPE:
- INSPECTION COVER
$18.40Qty in Cart: 0Quantity:Price:$18.40Subtotal: -
JAMES GASKET Primary Cover Gasket 34901-94
JAMES GASKET
$111.70Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174322- SKU:
- DS174322
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- COVER
- FEATURES:
- BEADED
- PRODUCT NAME:
- GASKET
- STYLE:
- PRIMARY
- THICKNESS IMPERIAL:
- 0,062'
- THICKNESS METRIC:
- 1.60 MM
- UNITS:
- 5 PACK
$111.70 -
JAMES GASKET Primary Cover Gasket - .062" 34901-79-A
JAMES GASKET
$57.50Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174321- SKU:
- DS174321
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- GASKET
- STYLE:
- PRIMARY
- THICKNESS IMPERIAL:
- 0,062'
- THICKNESS METRIC:
- 1.60 MM
- UNITS:
- 5 PACK
- FEATURES:
- BEADED
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- COVER
$57.50 -
JAMES GASKET Alternator Cover O-Ring - Big Twin 11147
JAMES GASKET
$26.80Made in the U.S.A.DS174316- SKU:
- DS174316
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- MOTOR
- PRODUCT NAME:
- O-RING
- APPLICATION:
- CHAIN COVER
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 10 PACK
$26.80 -
JAMES GASKET Chain Housing Cover O-Ring 11125
JAMES GASKET
$23.30Made in the U.S.A.DS174315- SKU:
- DS174315
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- APPLICATION:
- CHAIN COVER
- TYPE:
- OIL
- APPLICATION:
- MOTOR
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$23.30 -
JAMES GASKET Side Starter Seal - Big Twin 12053
JAMES GASKET
$30.20Made in the U.S.A.DS174313- SKU:
- DS174313
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- STARTER SHAFT
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
$30.20 -
JAMES GASKET Lower Pushrod O-Ring - XL 17944-89
JAMES GASKET
$16.80Made in the U.S.A.DS174312- SKU:
- DS174312
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- O-RING
- APPLICATION:
- PUSHROD COVER
- MATERIAL:
- RUBBER
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$16.80 -
JAMES GASKET Primary Cover Gasket 60539-94
JAMES GASKET
$132.00Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174308- SKU:
- DS174308
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- FEATURES:
- BEADED
- RIDING STYLE:
- STREET
- STYLE:
- PRIMARY
- THICKNESS IMPERIAL:
- 0,062'
- THICKNESS METRIC:
- 1.60 MM
- MATERIAL:
- PAPER
- UNITS:
- 5 PACK
- MATERIAL:
- SILICONE
- PRODUCT NAME:
- GASKET
- TYPE:
- COVER
$132.00 -
JAMES GASKET Big Bore Base Gasket - Big Twin 16777-94-S
JAMES GASKET
$44.95Require no gasket sealer, Made in the U.S.A.DS174307- SKU:
- DS174307
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
- FEATURES:
- BEADED
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- BORE SIZE IMPERIAL:
- 3.625'
- TYPE:
- CYLINDER BASE
$44.95 -
JAMES GASKET Inspection Cover Gasket 60567-65-B
JAMES GASKET
$31.50Latest additions to our line of high-quality genuine James gaskets, seals and O-rings, Cover seals are a seal, not a gasket, Cover seals are molded rubber, beaded oil seals with metal inserts and work with all inspection and derby covers; fit billet,...DS174305- SKU:
- DS174305
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,60 MM (0,062')
- THICKNESS METRIC:
- 1.60 MM
- TYPE:
- INSPECTION COVER
- UNITS:
- 5 PACK
- FEATURES:
- BEADED
- MATERIAL:
- SILICONE
- STYLE:
- PRIMARY
- THICKNESS IMPERIAL:
- 0,062'
$31.50 -
JAMES GASKET Rocker Box Rubber Gasket - XL 17030-91
JAMES GASKET
$68.95Made in the U.S.A.DS174304- SKU:
- DS174304
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
$68.95 -
JAMES GASKET Rocker Arm Shaft O-Ring 11101
JAMES GASKET
$5.40Made in the U.S.A.DS174290- SKU:
- DS174290
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- 25 PACK
- APPLICATION:
- ROCKER COVER
- PRODUCT NAME:
- O-RING
- APPLICATION:
- PUSHROD TUBE
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$5.40 -
JAMES GASKET Pushrod O-Ring - Big Twin 11157
JAMES GASKET
$20.10Made in the U.S.A.DS174289- SKU:
- DS174289
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- APPLICATION:
- PUSHROD COVER
- APPLICATION:
- ROCKER COVER
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 25 PACK
- PRODUCT NAME:
- O-RING
$20.10 -
JAMES GASKET Upper Pushrod O-Ring - XL 11190
JAMES GASKET
$38.60Made in the U.S.A.DS174287- SKU:
- DS174287
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 25 PACK
- APPLICATION:
- CYLINDER HEAD
- APPLICATION:
- PUSHROD COVER
$38.60 -
JAMES GASKET Clutch Inspection Cover O-Ring - XL 11187
JAMES GASKET
$18.30Made in the U.S.A.DS174286- SKU:
- DS174286
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- 25 PACK
- APPLICATION:
- CLUTCH INSPECTION COVER
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- O-RING
$18.30 -
JAMES GASKET Chrome Inspection Cover O-Ring - XL 11188
JAMES GASKET
$18.30Latest additions to our line of high-quality genuine James gaskets, seals and O-rings, Cover seals are a seal, not a gasket, Cover seals are molded rubber, beaded oil seals with metal inserts and work with all inspection and derby covers; fit billet,...DS174285- SKU:
- DS174285
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- INSPECTION COVER
- TYPE:
- PRIMARY COVER
- PRODUCT NAME:
- O-RING
- UNITS:
- 25 PACK
$18.30 -
JAMES GASKET Umbrella Valve Seal 26856-89
JAMES GASKET
$12.70Made in the U.S.A.DS174284- SKU:
- DS174284
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- UNITS:
- 10 PACK
- APPLICATION:
- UMBRELLA VALVE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
$12.70 -
JAMES GASKET Float Bowl O-Ring 27577-92
JAMES GASKET
$19.00Made in the U.S.A.DS174283- SKU:
- DS174283
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- MATERIAL:
- VITON
- PRODUCT NAME:
- O-RING
- UNITS:
- 5 PACK
- APPLICATION:
- CARBURETOR
- APPLICATION:
- FLOAT BOWL
$19.00 -
JAMES GASKET Tappet Guide O-Ring - XL 11100
JAMES GASKET
$6.30Made in the U.S.A.DS174270- SKU:
- DS174270
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- TAPPET GUIDE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- TYPE:
- OIL
- UNITS:
- 25 PACK
$6.30 -
JAMES GASKET Point Cover Gasket 32591-70
JAMES GASKET
$7.10Replacement point cover gaskets for Shovelhead cam chestDS174240- SKU:
- DS174240
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- TYPE:
- CIRCUIT BREAKER COVER
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$7.10
