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. Race Lifters - Standard - M8 4017
FEULING OIL PUMP CORP.
$299.95If you're running aggressive valve spring pressures and high-lift camshafts, your stock lifters are working against you—valve float and inconsistent oil delivery will cost you stability and performance. Feuling's Race Lifters are purpose-built hydraulic...09290072- SKU:
- 09290072
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
- SIZE:
- STANDARD
- TYPE:
- HYDRAULIC
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LIFTER
- STYLE:
- FULL-TRAVEL
- MODEL:
- RACE SERIES®
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- SET OF 4
$299.95Qty in Cart: 0Quantity:Price:$299.95Subtotal: -
FEULING OIL PUMP CORP. Race Lifters - M8 4018
FEULING OIL PUMP CORP.
$299.95If you're running a high-lift cam and aggressive valve spring pressures, your stock lifters aren't keeping up. FEULING's Race Lifters deliver the controlled oil flow and valve stability your valvetrain demands at elevated RPMs, eliminating float and...09290073- SKU:
- 09290073
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LIFTER
- SIZE IMPERIAL:
- + 0.8432' - 0.8435'
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- MODEL:
- RACE SERIES®
- SIZE:
- + 0,8432' - 0,8435'
- UNITS:
- SET OF 4
- STYLE:
- FULL-TRAVEL
- TYPE:
- HYDRAULIC
$299.95 -
FEULING OIL PUMP CORP. Race Lifters - M8 4019
FEULING OIL PUMP CORP.
$299.95If you're pushing your M8 engine beyond stock parameters with aggressive cam profiles and high valve spring pressures, stock lifters will cost you stability and precision at the top end. FEULING's Race Lifters are engineered to maintain consistent oil...09290074- SKU:
- 09290074
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- MODEL:
- RACE SERIES®
- PRODUCT NAME:
- LIFTER
- UNITS:
- SET OF 4
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- + 0.8437' - 0.844'
- STYLE:
- FULL-TRAVEL
- TYPE:
- HYDRAULIC
- APPLICATION:
- EXHAUST
- SIZE:
- + 0,8437' - 0,844'
$299.95Qty in Cart: 0Quantity:Price:$299.95Subtotal: -
FEULING OIL PUMP CORP. Lifters - Race Series - M8 4017ST
FEULING OIL PUMP CORP.
$319.95If you're running a high-lift cam with aggressive valve spring pressures, stock lifters will cost you RPM and reliability. Feuling's Race Series short-travel lifters eliminate valve float and reduce oil aeration—the silent killer of valvetrain...09290081- SKU:
- 09290081
- Availability:
- Ships Same Business Day
- Weight:
- 1.36 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- MODEL:
- RACE SERIES®
- PRODUCT NAME:
- LIFTER
- STYLE:
- SHORT-TRAVEL
- UNITS:
- SET OF 4
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- 0.8420' - 0.8423'
- TYPE:
- HYDRAULIC
- APPLICATION:
- EXHAUST
$319.95 -
FEULING OIL PUMP CORP. Lifters - Race Series - M8 4018ST
FEULING OIL PUMP CORP.
$319.95If you're running a high-lift camshaft with aggressive valve spring pressures, stock lifters will limit your RPM ceiling and introduce valve float that kills consistency and power. Feuling's Race Series short-travel lifters eliminate aeration-induced...09290082- SKU:
- 09290082
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- MODEL:
- RACE SERIES®
- PRODUCT NAME:
- LIFTER
- SIZE IMPERIAL:
- +0.843' - 0.8435'
- STYLE:
- SHORT-TRAVEL
- UNITS:
- SET OF 4
- APPLICATION:
- EXHAUST
- TYPE:
- HYDRAULIC
$319.95 -
FEULING OIL PUMP CORP. Lifters - Race Series - M8 4019ST
FEULING OIL PUMP CORP.
$319.95If you're running a high-lift cam with aggressive valve spring pressures, standard lifters will limit your RPM ceiling and introduce valve float that costs you power and reliability. Feuling's Race Series short-travel lifters eliminate these constraints...09290083- SKU:
- 09290083
- Availability:
- Ships Same Business Day
- Weight:
- 1.51 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- MODEL:
- RACE SERIES®
- PRODUCT NAME:
- LIFTER
- STYLE:
- SHORT-TRAVEL
- SIZE IMPERIAL:
- + 0.8435' - 0.844'
- TYPE:
- HYDRAULIC
- APPLICATION:
- EXHAUST
- UNITS:
- SET OF 4
$319.95 -
FEULING OIL PUMP CORP. Cam Outer Bearing 2078
FEULING OIL PUMP CORP.
$69.95Proper cam bearing clearance is critical to maintaining oil pressure, extending cam life, and ensuring consistent valve timing—especially in high-RPM or forced-induction applications where factory tolerances fall short. The Feuling Oil Pump Corp. Cam...09240277- SKU:
- 09240277
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- RIDING STYLE:
- STREET
- STYLE:
- CHAIN DRIVE
- UNITS:
- KIT
- APPLICATION:
- CAMSHAFT
- PRODUCT NAME:
- BEARING
$69.95 -
FEULING OIL PUMP CORP. Cam Plate - Chain Drive - Twin Cam 8010
FEULING OIL PUMP CORP.
$399.95If you're running a high-performance Twin Cam engine, oil temperature and bearing protection directly impact reliability and power output. The Feuling Oil Pump Corp. Cam Plate upgrades your engine's oil delivery system with precision-engineered flow...09250109- SKU:
- 09250109
- Availability:
- Ships Same Business Day
- Weight:
- 2.09 LBS
- BASE COLOR:
- RED
- TYPE:
- CHAIN
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SUPPORT PLATE
- RIDING STYLE:
- STREET
$399.95 -
FEULING OIL PUMP CORP. Pressure Relief Spring - 6 pack 8019
FEULING OIL PUMP CORP.
$26.95Engine oil pressure is critical to bearing longevity and overall reliability, especially in high-performance applications. The OEM pressure relief valve often fails to maintain optimal pressure under sustained load or elevated RPMs, compromising...09250300- SKU:
- 09250300
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- TYPE:
- PRESSURE RELIEF
- PRODUCT NAME:
- SPRING
- RIDING STYLE:
- STREET
- UNITS:
- 6 PACK
$26.95 -
FEULING OIL PUMP CORP. Chain Conversion Kit - Twin Cam 8080
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 precision. The Feuling Oil Pump Corp. Chain Conversion Kit upgrades your engine to late-style...09251068- SKU:
- 09251068
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- TYPE:
- HYDRAULIC
- MODEL:
- OE+
- UNITS:
- KIT
- PRODUCT NAME:
- TENSIONER CONVERSION KIT
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN CONVERSION
$399.95 -
FEULING OIL PUMP CORP. Chain Kit - Twin Cam 8081
FEULING OIL PUMP CORP.
$399.95Early Twin Cam engines rely on mechanical cam chain tensioners that wear over time, leading to chain slack, timing issues, and potential engine damage. The Feuling Oil Pump Corp. Chain Kit 8081 lets you retrofit your engine with the superior hydraulic...09251069- SKU:
- 09251069
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- TYPE:
- HYDRAULIC
- TYPE:
- CHAIN
- UNITS:
- KIT
- MODEL:
- OE+
- PRODUCT NAME:
- TENSIONER CONVERSION KIT
- RIDING STYLE:
- STREET
$399.95 -
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
$319.95 -
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
