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
KIBBLEWHITE Exhaust Valve - Twin Cam 20-20057
KIBBLEWHITE
MSRP: $29.81Now: $26.83Was: $29.81If you're running a high-revving Twin Cam engine, valve durability under extreme conditions isn't negotiable. The KIBBLEWHITE Exhaust Valve delivers superior wear resistance and heat dissipation...09260331- SKU:
- 09260331
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- LENGTH IMPERIAL:
- 4.505'
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 0.3095'
- UNITS:
- EACH
- HEAD DIAMETER IMPERIAL:
- 1.565'
- TULIP ANGLE:
- 17°
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
MSRP: $29.81Now: $26.83Was: $29.81 -
On Sale
KIBBLEWHITE Cast Iron Valve Guide 20-4095C
KIBBLEWHITE
MSRP: $9.81Now: $8.83Was: $9.81Valve guides are critical to maintaining proper valve alignment and preventing wear in high-performance engines. This KIBBLEWHITE cast iron guide delivers the precision fit and durability required...09262793- SKU:
- 09262793
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.3755'
- OUTSIDE DIAMETER IMPERIAL:
- 0.6440'
- PRODUCT NAME:
- VALVE GUIDE
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
MSRP: $9.81Now: $8.83Was: $9.81 -
On Sale
KIBBLEWHITE Cast Iron Valve Guide 20-4096C
KIBBLEWHITE
MSRP: $9.81Now: $8.83Was: $9.81Valve guides are critical to engine longevity and performance—they control oil consumption, prevent valve stem wear, and maintain proper sealing under extreme temperatures and RPM cycles. The...09262794- SKU:
- 09262794
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.3755'
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
- OUTSIDE DIAMETER IMPERIAL:
- 0.6440'
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
MSRP: $9.81Now: $8.83Was: $9.81 -
On Sale
KIBBLEWHITE Intake Valve - 1200 XL 20-20260
KIBBLEWHITE
MSRP: $54.10Now: $48.69Was: $54.10If you're running a 1200 XL and demand reliable intake flow without sacrificing durability, the Kibblewhite intake valve is engineered for the precision you need. The nitrided stainless-steel...09262866- SKU:
- 09262866
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 4.525'
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- HEAD DIAMETER IMPERIAL:
- 1.805'
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 28°
- STEM DIAMETER IMPERIAL:
- 7.00 MM
MSRP: $54.10Now: $48.69Was: $54.10 -
On Sale
KIBBLEWHITE Exhaust Valve - 1200 XL 20-20265
KIBBLEWHITE
MSRP: $54.10Now: $48.69Was: $54.10If you're running your 1200 XL hard, valve wear isn't just a maintenance issue—it's a performance killer. Kibblewhite's nitrided stainless-steel exhaust valves deliver superior durability and...09262868- SKU:
- 09262868
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 1.575'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 4.610'
- TULIP ANGLE:
- 34°
- STEM DIAMETER IMPERIAL:
- 7.00 MM
MSRP: $54.10Now: $48.69Was: $54.10 -
On Sale
KIBBLEWHITE Exhaust Valve - 883/1200 XL 20-20555
KIBBLEWHITE
MSRP: $54.10Now: $48.69Was: $54.10Valve durability is non-negotiable in high-performance Harley-Davidson engines, and OEM replacements often fall short under sustained racing conditions. The KIBBLEWHITE Exhaust Valve combines...09262871- SKU:
- 09262871
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- LENGTH IMPERIAL:
- 4.660'
- TULIP ANGLE:
- 40°
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 1.480'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 7.00 MM
- UNITS:
- EACH
MSRP: $54.10Now: $48.69Was: $54.10 -
JAMES GASKET Drive Gear Seal - Big Twin 12077
JAMES GASKET
$19.90A failing drive gear shaft seal compromises your entire drivetrain by allowing oil to escape and contaminants to enter, leading to premature wear and catastrophic failure. The JAMES GASKET Drive Gear...09350405- SKU:
- 09350405
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- MAIN DRIVE GEAR
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$19.90 -
JAMES GASKET Solenoid Seal - FL/FLH 60645-65-X
JAMES GASKET
$8.50The JAMES GASKET Solenoid Seal is engineered to prevent oil seepage and maintain pressure integrity in your FL/FLH transmission solenoid assembly. A failing seal here doesn't just cause messy...09350242- SKU:
- 09350242
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- INNER PRIMARY
- PRODUCT NAME:
- X-RING
- TYPE:
- QUAD SEAL
- APPLICATION:
- SOLENOID
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$8.50 -
JAMES GASKET Fuel Filter O-Ring 11351
JAMES GASKET
$21.50A compromised fuel filter O-ring is a silent threat to engine reliability—allowing fuel contamination and pressure loss that can damage injectors and compromise performance. The JAMES GASKET Fuel...09350245- SKU:
- 09350245
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- TYPE:
- FUEL PUMP
- UNITS:
- 25 PACK
- APPLICATION:
- FUEL FILTER
$21.50 -
JAMES GASKET Foam Primary Cover Gasket 34955-04-F
JAMES GASKET
$36.95A leaking primary cover gasket compromises engine sealing and invites oil contamination into critical drivetrain components. The JAMES GASKET Foam Primary Cover Gasket delivers OEM-equivalent...09350249- SKU:
- 09350249
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MATERIAL:
- FOAMET
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- TYPE:
- PRIMARY COVER
$36.95 -
JAMES GASKET Fork Seal Kit - 49 mm 45849-01-VR
JAMES GASKET
$35.95Leaking fork seals compromise your suspension performance and can lead to costly damage to your fork internals. This JAMES GASKET Fork Seal Kit gives you everything needed for a complete seal...09350253- SKU:
- 09350253
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
$35.95 -
FEULING OIL PUMP CORP. Gear Drive Cam - 630 Series 1010
FEULING OIL PUMP CORP.
$399.95If you're serious about extracting maximum power from your engine without sacrificing low-end responsiveness, the FEULING OIL PUMP CORP. Gear Drive Cam (630 Series 1010) delivers the aggressive mid...09250431- SKU:
- 09250431
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- PRODUCT NAME:
- CAMSHAFT
- UNITS:
- PAIR
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 19°
- EXHAUST OPEN IMPERIAL:
- 64°
- INTAKE DURATION IMPERIAL:
- 258°
- INTAKE LIFT IMPERIAL:
- 0.630'
- INTAKE OPEN IMPERIAL:
- 20°
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- EXHAUST DURATION IMPERIAL:
- 263°
- GRIND:
- 630 SERIES
- APPLICATION:
- EXHAUST
- EXHAUST LIFT IMPERIAL:
- 0.630'
- INTAKE CLOSE IMPERIAL:
- 58°
- MODEL:
- REAPER
$399.95Qty in Cart: 0Quantity:Price:$399.95Subtotal: -
FEULING OIL PUMP CORP. Race Series Camshaft Kit 7210P
FEULING OIL PUMP CORP.
$1,879.95If you're serious about maximizing your engine's performance potential, the FEULING OIL PUMP CORP. Race Series Camshaft Kit 7210P is engineered to deliver the aggressive valve timing and lift you...09251381- SKU:
- 09251381
- Availability:
- Ships Same Business Day
- Weight:
- 11.26 LBS
- PRODUCT NAME:
- CAMSHAFT KIT
- UNITS:
- KIT
- MODEL:
- RACE SERIES®
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- GRIND:
- 630 SERIES
$1,879.95 -
FEULING OIL PUMP CORP. Race Series Camshaft Kit 7270
FEULING OIL PUMP CORP.
$2,049.95The FEULING OIL PUMP CORP. Race Series Camshaft Kit 7270 delivers the valve timing precision and lift characteristics that separates competitive racers from the pack. Purpose-built for high-RPM...09251417- SKU:
- 09251417
- Availability:
- Ships Same Business Day
- Weight:
- 11.40 LBS
- RIDING STYLE:
- STREET
- GRIND:
- 538 SERIES
- PRODUCT NAME:
- CAMSHAFT KIT
- TYPE:
- CHAIN
- UNITS:
- KIT
- MODEL:
- RACE SERIES®
$2,049.95 -
FEULING OIL PUMP CORP. Race Series Camshaft Kit 7270ST
FEULING OIL PUMP CORP.
$2,069.95A properly engineered camshaft is the foundation of engine performance—dictating valve timing, lift, and duration that directly impact horsepower, torque delivery, and rev capability. The FEULING OIL...09251418- SKU:
- 09251418
- Availability:
- Ships Same Business Day
- Weight:
- 11.45 LBS
- PRODUCT NAME:
- CAMSHAFT KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MODEL:
- RACE SERIES®
- TYPE:
- CHAIN
- GRIND:
- 538 SERIES
$2,069.95 -
FEULING OIL PUMP CORP. Race Series Camshaft Kit 7271
FEULING OIL PUMP CORP.
$2,049.95If you're serious about extracting maximum horsepower and torque from your engine, cam selection is non-negotiable. The FEULING OIL PUMP CORP. Race Series Camshaft Kit 7271 delivers aggressive valve...09251419- SKU:
- 09251419
- Availability:
- Ships Same Business Day
- Weight:
- 11.70 LBS
- PRODUCT NAME:
- CAMSHAFT KIT
- RIDING STYLE:
- STREET
- GRIND:
- 538 SERIES
- MODEL:
- RACE SERIES®
- TYPE:
- CHAIN
- UNITS:
- KIT
$2,049.95Qty in Cart: 0Quantity:Price:$2,049.95Subtotal: -
FEULING OIL PUMP CORP. Valve Seals 1075
FEULING OIL PUMP CORP.
$15.95Valve seal degradation is one of the most common culprits behind oil consumption issues and carbon buildup in high-performance engines. FEULING OIL PUMP CORP. Valve Seals 1075 are engineered to...09261166- SKU:
- 09261166
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
$15.95 -
FEULING OIL PUMP CORP. Valve Seals - Twin Cam 1076
FEULING OIL PUMP CORP.
$15.95Valve seal degradation is one of the most common culprits behind oil consumption issues and performance loss in Twin Cam engines. The Feuling OIL PUMP CORP. Valve Seals (1076) are engineered with...09261167- SKU:
- 09261167
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- INTAKE
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- PRODUCT NAME:
- SEAL
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
$15.95 -
ROUGH CRAFTS Black Cam Cover - Grooved RC-610-002
ROUGH CRAFTS
$359.95A quality cam cover does more than protect your valve train—it's a visible statement of your build's attention to detail. The ROUGH CRAFTS Black Cam Cover combines precision CNC machining with the...09401958- SKU:
- 09401958
- Availability:
- Ships Same Business Day
- Weight:
- 1.66 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- TYPE:
- CAM
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- STYLE:
- GROOVED
$359.95 -
ROUGH CRAFTS Chrome Cam Cover - Grooved RC-610-003
ROUGH CRAFTS
$359.95A quality cam cover does more than protect your engine's internal components—it establishes visual presence while maintaining the precision fit your M8 demands. The ROUGH CRAFTS Chrome Cam Cover...09401959- SKU:
- 09401959
- Availability:
- Ships Same Business Day
- Weight:
- 1.51 LBS
- TYPE:
- CAM
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- MATERIAL:
- BILLET ALUMINUM
- STYLE:
- GROOVED
$359.95
