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
-
On Sale
COMETIC Engine Gasket Kit - Iron XL C9051F
COMETIC
MSRP: $176.35Now: $166.00Was: $176.35Every gasket in these kits uses the best materials possible for its intended application, Multi-Layer Steel (MLS) head gaskets, Steel Viton®-coated base gaskets, Blue Viton valve stem seals, Aluminum Foam Material (AFM) race-style exhaust gaskets,...09344800- SKU:
- 09344800
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- BORE SIZE IMPERIAL:
- 3.1875'
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- COMPLETE
- UNITS:
- KIT
- BORE SIZE:
- 3,1875'
- RIDING STYLE:
- STREET
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MATERIAL:
- VITON
MSRP: $176.35Now: $166.00Was: $176.35Qty in Cart: 0Quantity:Price:MSRP: $176.35Now: $166.00Was: $176.35Subtotal: -
On Sale
COMETIC Main Shaft Seal C9359
COMETIC
MSRP: $8.95Now: $8.00Was: $8.95High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle, Made in the U.S.A.09350202- SKU:
- 09350202
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- EACH
- APPLICATION:
- MAIN DRIVE GEAR
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
MSRP: $8.95Now: $8.00Was: $8.95 -
EASTERN MOTORCYCLE PARTS Bushing Kit - Cam Gear - XL 15-0157
EASTERN MOTORCYCLE PARTS
$182.95Properly re-bush cam cover, Made in U.S.A.09251168- SKU:
- 09251168
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- BUSHING KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$182.95 -
EASTERN MOTORCYCLE PARTS Mount Studs A-16864-48
EASTERN MOTORCYCLE PARTS
$14.60Made in the U.S.A.09300110- SKU:
- 09300110
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- STUD SET
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
- TYPE:
- TOP MOTOR MOUNT
$14.60 -
EASTERN MOTORCYCLE PARTS Piston Pin Clip A-22588-78
EASTERN MOTORCYCLE PARTS
$3.90Quality equals or exceeds OEM specifications, Made in the U.S.A.DS750598- SKU:
- DS750598
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- CLIP
- RIDING STYLE:
- STREET
- TYPE:
- PIN
- APPLICATION:
- PISTON
- UNITS:
- 10 PACK
$3.90 -
EASTERN MOTORCYCLE PARTS Piston Pin Clip A-22582-52
EASTERN MOTORCYCLE PARTS
$5.30Quality equals or exceeds OEM specifications, Made in the U.S.A.DS750599- SKU:
- DS750599
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- PISTON
- UNITS:
- 10 PACK
- PRODUCT NAME:
- CLIP
- RIDING STYLE:
- STREET
- TYPE:
- PIN
$5.30 -
Jims Valve Keepers 1984-2004 Harley-Davidson Softail Standard FXST 1370
JIMS
$29.95Experience superior performance and reliability with the JIMS Valve Keepers for Big Twin 1370. Crafted from premium materials and meticulously heat-treated to meet JIMS' rigorous standards, these valve keepers ensure optimal function and durability...DS199555- SKU:
- DS199555
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- KEY
- RIDING STYLE:
- STREET
- TYPE:
- VALVE LOCK
- UNITS:
- 8 PACK
$29.95 -
EASTERN MOTORCYCLE PARTS Oil Pump Bushing 24641-36 A-24641-36
EASTERN MOTORCYCLE PARTS
$32.95Made in the U.S.A.09320074- SKU:
- 09320074
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE SHAFT
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
EASTERN MOTORCYCLE PARTS Oil Pump Plunger - 26400-82 A-26400-82
EASTERN MOTORCYCLE PARTS
$10.95Made in the U.S.A.09320075- SKU:
- 09320075
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- OIL PUMP
- TYPE:
- RELIEF
- PRODUCT NAME:
- PLUNGER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$10.95 -
EASTERN MOTORCYCLE PARTS Dowel Pins A-16574-99
EASTERN MOTORCYCLE PARTS
$9.30Used in crankcase and motor for transmission case applications, Made in the U.S.A.09200067- SKU:
- 09200067
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- PRODUCT NAME:
- DOWEL PIN
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
$9.30Qty in Cart: 0Quantity:Price:$9.30Subtotal: -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9110
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200068- SKU:
- 09200068
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.0895' - 0.0905'
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BEARING SPACER
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- 5 PACK
$14.60 -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9123
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200072- SKU:
- 09200072
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- BEARING SPACER
- UNITS:
- 5 PACK
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.0975' - 0.0985'
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
$14.60 -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9125
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200073- SKU:
- 09200073
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1015' - 0.1025'
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- 5 PACK
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BEARING SPACER
$14.60 -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9126
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200074- SKU:
- 09200074
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- UNITS:
- 5 PACK
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- BASE FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1035' - 0.1045'
- PRODUCT NAME:
- BEARING SPACER
$14.60Qty in Cart: 0Quantity:Price:$14.60Subtotal: -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9127
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200075- SKU:
- 09200075
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- CHROME
- BASE FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1055' - 0.1065'
- PRODUCT NAME:
- BEARING SPACER
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- 5 PACK
$14.60Qty in Cart: 0Quantity:Price:$14.60Subtotal: -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9128
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200076- SKU:
- 09200076
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1075' - 0.1085'
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BEARING SPACER
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- 5 PACK
$14.60 -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9129
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200077- SKU:
- 09200077
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- BEARING SPACER
- UNITS:
- 5 PACK
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1095' - 0.1105'
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
$14.60 -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9130
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200078- SKU:
- 09200078
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1115' - 0.1125'
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BEARING SPACER
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- 5 PACK
$14.60 -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9132
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200080- SKU:
- 09200080
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1155' - 0.1165'
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- 5 PACK
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BEARING SPACER
$14.60 -
EASTERN MOTORCYCLE PARTS Bearing Spacers - 5 pack A-9133
EASTERN MOTORCYCLE PARTS
$14.60High-quality OEM replacement components, Made in the U.S.A.09200081- SKU:
- 09200081
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- COLOR/FINISH:
- CHROME
- DIAMETER - THREAD SIZE IMPERIAL:
- 0.1175' - 0.1185'
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- BEARING SPACER
- TYPE:
- CRANKCASE
- UNITS:
- 5 PACK
$14.60
