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
-
FEULING OIL PUMP CORP. Chain Kit - Twin Cam 8082
FEULING OIL PUMP CORP.
$399.95If you're running an early Twin Cam engine with a mechanical cam chain tensioner, you're operating with outdated technology that compromises reliability and performance. The Feuling Oil Pump Corp. Chain Kit converts your engine to a modern hydraulic...09251070- SKU:
- 09251070
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- TYPE:
- HYDRAULIC
- PRODUCT NAME:
- TENSIONER CONVERSION KIT
- TYPE:
- CHAIN
- MODEL:
- OE+
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$399.95 -
FEULING OIL PUMP CORP. Chain Conversion Kit - Twin Cam 8083
FEULING OIL PUMP CORP.
$399.95Early Twin Cam engines suffer from the limitations of mechanical cam chain tensioners—inconsistent tension, increased wear, and reliability concerns during high-RPM operation. The Feuling Oil Pump Corp. Chain Conversion Kit upgrades your engine to a...09251071- SKU:
- 09251071
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MODEL:
- OE+
- TYPE:
- HYDRAULIC
- UNITS:
- KIT
- PRODUCT NAME:
- TENSIONER CONVERSION KIT
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN CONVERSION
$399.95 -
FEULING OIL PUMP CORP. Inner Cam Bearing 2074
FEULING OIL PUMP CORP.
$18.95High-performance engines demand bearing support that can handle sustained elevated loads and rpms without compromise. The FEULING OIL PUMP CORP. Inner Cam Bearing 2074 is engineered specifically for this purpose—a full-complement design that distributes...09251155- SKU:
- 09251155
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- TYPE:
- INNER
- UNITS:
- EACH
- PRODUCT NAME:
- CAM BEARING
$18.95 -
FEULING OIL PUMP CORP. Offset Oil Filter Mount - Black 2022
FEULING OIL PUMP CORP.
$179.95Managing oil temperature is critical for maintaining engine reliability during sustained high-performance driving. This Feuling offset oil filter mount gives you a clean, sandwich-style platform to integrate remote oil coolers or additional filtration...07120318- SKU:
- 07120318
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PRODUCT NAME:
- MOUNT
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- STYLE:
- OFFSET
- TYPE:
- OIL FILTER
- RIDING STYLE:
- STREET
$179.95 -
FEULING OIL PUMP CORP. Oil Pump - Twin Cam 88 7000
FEULING OIL PUMP CORP.
$399.95If you're running a Twin Cam 88 and experiencing oil pressure inconsistency, inadequate scavenging, or engine temperature creep, your stock oil pump is likely the culprit. The Feuling OIL PUMP CORP. 7000 delivers 40% more pressure volume and 60% more...09320018- SKU:
- 09320018
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- COLOR/FINISH:
- ALUMINUM
- FLOW RATE:
- HIGH-FLOW
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- MATERIAL:
- 6061 BILLET ALUMINUM
- MODEL:
- HP+®
- PRODUCT NAME:
- PUMP
- TYPE:
- OIL PUMP
- UNITS:
- EACH
$399.95 -
FEULING OIL PUMP CORP. Pressure Relief Valve 8004
FEULING OIL PUMP CORP.
$12.95The Feuling Oil Pump Corp. Pressure Relief Valve 8004 is essential for maintaining proper oil pressure across your Twin Cam engine's operating range. A worn or improperly calibrated relief valve can lead to inadequate lubrication, increased wear, and...09320086- SKU:
- 09320086
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VALVE
- TYPE:
- PRESSURE RELEASE
$12.95 -
FEULING OIL PUMP CORP. HiFlow Camplate - M8 8017
FEULING OIL PUMP CORP.
$399.95Engine oil flow is the silent foundation of reliable power and longevity—especially in high-performance applications where heat and friction demand precision cooling and lubrication. The Feuling HiFlow Camplate addresses this directly by enlarging...09320192- SKU:
- 09320192
- Availability:
- Ships Same Business Day
- Weight:
- 2.01 LBS
- TYPE:
- OIL PUMP
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- CAM PLATE
- BASE COLOR:
- RED
$399.95 -
FEULING OIL PUMP CORP. Camplate - OE+ - M8 8037
FEULING OIL PUMP CORP.
$319.95If you're running an M8 engine, oil temperature and cam wear are direct threats to reliability and longevity. The FEULING OE+ Camplate addresses both by optimizing oil flow paths and providing superior lubrication to critical cam journals—delivering the...09320193- SKU:
- 09320193
- Availability:
- Ships Same Business Day
- Weight:
- 2.01 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- PRODUCT NAME:
- CAM PLATE
- UNITS:
- EACH
$319.95Qty in Cart: 0Quantity:Price:$319.95Subtotal: -
FEULING OIL PUMP CORP. Oil Pump - HP+‚® - Oil Cooled - M8 7018
FEULING OIL PUMP CORP.
$449.95Factory oil pumps are a bottleneck in high-performance M8 engines—they can't handle the demands of increased power output, leading to inadequate pressure, poor scavenging, and rising oil temperatures that rob you of horsepower. The Feuling HP+ Oil Pump...09320195- SKU:
- 09320195
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- PUMP
- UNITS:
- EACH
$449.95 -
FEULING OIL PUMP CORP. Race Oil Pump - Oil Cooled - M8 7020
FEULING OIL PUMP CORP.
$519.95A stock oil pump will cost you horsepower, reliability, and longevity—especially if you're pushing your M8 Twin Cam past factory limits. The Feuling 7020 Race Oil Pump eliminates blow-by and wet sumping while delivering the pressure volume and scavenge...09320196- SKU:
- 09320196
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- MATERIAL:
- 7075 BILLET ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RED
- TYPE:
- OIL PUMP
- PRODUCT NAME:
- PUMP
- UNITS:
- EACH
- BASE COLOR:
- RED
- MODEL:
- RACE SERIES®
$519.95 -
FEULING OIL PUMP CORP. Oil System - Race - M8 7097
FEULING OIL PUMP CORP.
$1,229.95A proper oil system is the foundation of reliable high-RPM performance, and the Feuling Race Series M8 7097 delivers the pressure stability, thermal control, and internal clearances your engine needs to handle aggressive valve timing and sustained power...09320199- SKU:
- 09320199
- Availability:
- Ships Same Business Day
- Weight:
- 6.05 LBS
- COLOR/FINISH:
- RED
- MODEL:
- RACE SERIES®
- PRODUCT NAME:
- OIL SYSTEM
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- BASE COLOR:
- RED
$1,229.95 -
FEULING OIL PUMP CORP. Race Series Oil System Kit 7072ST
FEULING OIL PUMP CORP.
$1,059.95If you're running a T/C® engine and experiencing wet sumping, oil carryover into your air cleaner, or inconsistent oil pressure, the Feuling Oil Pump Corp. Race Series Oil System Kit 7072ST addresses these issues head-on. This complete oiling system kit...09320289- SKU:
- 09320289
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MODEL:
- RACE SERIES®
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- OIL SYSTEM
- UNITS:
- KIT
$1,059.95 -
FEULING OIL PUMP CORP. Race Series Oil System Kit 7073ST
FEULING OIL PUMP CORP.
$1,059.95If you're running a T/C engine and experiencing wet sumping, oil temperature creep, or inconsistent oil pressure, a properly engineered oil system kit isn't optional—it's essential. The Feuling Race Series 7073ST delivers measurable improvements across...09320290- SKU:
- 09320290
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- PRODUCT NAME:
- OIL SYSTEM
- UNITS:
- KIT
- MODEL:
- RACE SERIES®
- RIDING STYLE:
- STREET
$1,059.95 -
FEULING OIL PUMP CORP. Race Oil Pump - Twin Cooled - M8 7021
FEULING OIL PUMP CORP.
$519.95Stock oil pumps can't keep up with high-performance demands—they struggle to maintain adequate pressure under sustained RPMs, fail to properly scavenge blow-by gases, and allow oil temperatures to climb when your engine needs cooling most. The Feuling...09320216- SKU:
- 09320216
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- PRODUCT NAME:
- PUMP
- UNITS:
- KIT
- BASE COLOR:
- RED
- MODEL:
- RACE SERIES®
- MATERIAL:
- 7075 BILLET ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RED
- TYPE:
- OIL PUMP
$519.95 -
FEULING OIL PUMP CORP. Oil System - HP+‚® - M8 Twin Cooled 7098
FEULING OIL PUMP CORP.
$1,029.95A properly engineered oil system is the foundation of engine longevity and performance. The Feuling HP+ Oil System eliminates common cooling and scavenging issues that plague stock M8 Twin Cooled setups, delivering measurable improvements in engine...09320217- SKU:
- 09320217
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
- BASE COLOR:
- RED
- MODEL:
- HP+®
- TYPE:
- OIL SYSTEM
- STYLE:
- GEAR DRIVE
- UNITS:
- KIT
- COLOR/FINISH:
- RED
- PRODUCT NAME:
- PUMP KIT
- STYLE:
- CHAIN DRIVE
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$1,029.95 -
FEULING OIL PUMP CORP. Race Oil System - M8 Twin Cooled 7099
FEULING OIL PUMP CORP.
$1,229.95An efficient oiling system is the foundation of engine reliability and performance—inadequate oil pressure, volume, and cooling directly compromise bearing longevity and power output. The Feuling Oil Pump Corp. Race Oil System for M8 Twin Cooled engines...09320218- SKU:
- 09320218
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- MODEL:
- RACE SERIES®
- STYLE:
- GEAR DRIVE
- UNITS:
- KIT
- BASE COLOR:
- RED
- TYPE:
- OIL SYSTEM
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PUMP KIT
- RIDING STYLE:
- STREET
- STYLE:
- CHAIN DRIVE
- COLOR/FINISH:
- RED
$1,229.95 -
FEULING OIL PUMP CORP. 472 Cam - Chain Drive - M8 1350
FEULING OIL PUMP CORP.
$319.95The Feuling Oil Pump Corp. 472 Cam delivers optimized valve timing and lift specifically engineered for M8 chain-drive Harley-Davidson engines, giving you increased horsepower and torque throughout the RPM range. This CNC-machined cam profile is a direct...09251325- SKU:
- 09251325
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- PRODUCT NAME:
- CAMSHAFT
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN
- APPLICATION:
- INTAKE
- GRIND:
- 472 SERIES
- MODEL:
- REAPER
- UNITS:
- EACH
$319.95 -
FEULING OIL PUMP CORP. Cam Kit - HP+‚® - M8 1450
FEULING OIL PUMP CORP.
$529.95The M8's inherent valvetrain instability demands a cam kit engineered specifically for this engine architecture—and the Feuling HP+ delivers the precision engineering needed to unlock reliable horsepower gains while eliminating the hydraulic lifter...09251326- SKU:
- 09251326
- Availability:
- Ships Same Business Day
- Weight:
- 4.26 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- GRIND:
- 472 SERIES
- TYPE:
- CHAIN
- PRODUCT NAME:
- CAMCHEST KIT
- APPLICATION:
- INTAKE
- MODEL:
- HP+®
$529.95 -
FEULING OIL PUMP CORP. Cam Kit - HP+‚® - M8 7252
FEULING OIL PUMP CORP.
$1,795.95Stock M-Eight oiling systems compromise pressure stability, scavenge efficiency, and bearing protection—especially under sustained high-RPM operation. The Feuling HP+ Cam Kit addresses these limitations with a complete high-flow oiling solution that...09251328- SKU:
- 09251328
- Availability:
- Ships Same Business Day
- Weight:
- 11.46 LBS
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- FEATURES:
- OIL COOLED
- GRIND:
- 472 SERIES
- TYPE:
- CHAIN
- APPLICATION:
- INTAKE
- MODEL:
- HP+®
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
$1,795.95 -
FEULING OIL PUMP CORP. Cam Kit - HP+‚® - M8 7257
FEULING OIL PUMP CORP.
$1,795.95Stock M8 oil systems compromise on pressure, cooling, and scavenge efficiency—leaving your engine vulnerable to bearing wear, thermal stress, and sump starvation under load. The Feuling HP+ Cam Kit addresses this with a complete system upgrade that...09251329- SKU:
- 09251329
- Availability:
- Ships Same Business Day
- Weight:
- 11.41 LBS
- APPLICATION:
- EXHAUST
- FEATURES:
- TWIN COOLED
- GRIND:
- 472 SERIES
- TYPE:
- CHAIN
- APPLICATION:
- INTAKE
- MODEL:
- HP+®
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
$1,795.95
