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. Gear Drive Reaper Cam - 574 Series 1007
FEULING OIL PUMP CORP.
$399.95The Feuling Oil Pump Corp. Gear Drive Reaper Cam delivers a responsive power band engineered for modified engines while maintaining exceptional reliability as a bolt-in upgrade for stock 96", 103", and 110" displacement platforms. Its smooth lobe design...09250428- SKU:
- 09250428
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 255°
- INTAKE OPEN IMPERIAL:
- 15°
- TYPE:
- GEAR
- EXHAUST LIFT IMPERIAL:
- 0.574'
- INTAKE DURATION IMPERIAL:
- 240°
- INTAKE LIFT IMPERIAL:
- 0.574'
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- APPLICATION:
- EXHAUST
- INTAKE CLOSE IMPERIAL:
- 45°
- PRODUCT NAME:
- CAMSHAFT
- EXHAUST CLOSE IMPERIAL:
- 14°
- EXHAUST OPEN IMPERIAL:
- 61°
- GRIND:
- 574 SERIES
- MODEL:
- REAPER
$399.95 -
FEULING OIL PUMP CORP. Gear Drive Reaper Cam - 574 Series 1008
FEULING OIL PUMP CORP.
$399.95The Feuling Oil Pump Corp. Gear Drive Reaper Cam 574 Series delivers a usable power band specifically engineered for modified Harley-Davidson engines, making it the ideal choice if you've invested in upgraded heads, compression, and intake/exhaust...09250429- SKU:
- 09250429
- Availability:
- Ships Same Business Day
- Weight:
- 3.07 LBS
- EXHAUST DURATION IMPERIAL:
- 255°
- PRODUCT NAME:
- CAMSHAFT
- APPLICATION:
- EXHAUST
- INTAKE CLOSE IMPERIAL:
- 45°
- INTAKE OPEN IMPERIAL:
- 15°
- APPLICATION:
- INTAKE
- EXHAUST LIFT IMPERIAL:
- 0.574'
- INTAKE DURATION IMPERIAL:
- 240°
- INTAKE LIFT IMPERIAL:
- 0.574'
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- UNITS:
- PAIR
- EXHAUST CLOSE IMPERIAL:
- 14°
- EXHAUST OPEN IMPERIAL:
- 61°
- GRIND:
- 574 SERIES
- MODEL:
- REAPER
$399.95 -
FEULING OIL PUMP CORP. Chain Drive Reaper Cam - 574 Series 1009
FEULING OIL PUMP CORP.
$399.95The Feuling 574 Series Chain Drive Reaper Cam delivers a commanding power band for modified engines while maintaining the smooth, reliable operation you need for stock displacement builds. Its sophisticated cam-lobe geometry eliminates the valve chatter...09250430- SKU:
- 09250430
- Availability:
- Ships Same Business Day
- Weight:
- 3.21 LBS
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 255°
- APPLICATION:
- EXHAUST
- INTAKE CLOSE IMPERIAL:
- 45°
- INTAKE OPEN IMPERIAL:
- 15°
- PRODUCT NAME:
- CAMSHAFT
- TYPE:
- CHAIN
- EXHAUST LIFT IMPERIAL:
- 0.574'
- INTAKE DURATION IMPERIAL:
- 240°
- INTAKE LIFT IMPERIAL:
- 0.574'
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- EXHAUST CLOSE IMPERIAL:
- 14°
- EXHAUST OPEN IMPERIAL:
- 61°
- GRIND:
- 574 SERIES
- MODEL:
- REAPER
$399.95Qty in Cart: 0Quantity:Price:$399.95Subtotal: -
FEULING OIL PUMP CORP. Valve Seals 1077
FEULING OIL PUMP CORP.
$15.95Valve seal degradation is one of the most common causes of oil consumption and performance loss in high-revving engines. The Feuling Oil Pump Corp. Valve Seals 1077 use premium Viton® material and spring-loaded wipers to maintain a reliable seal under...09261168- SKU:
- 09261168
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SEAL
- SIZE IMPERIAL:
- 0.530'
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
$15.95 -
FEULING OIL PUMP CORP. Valve Seals 1078
FEULING OIL PUMP CORP.
$15.95Valve seal degradation leads to oil consumption, smoking, and performance loss—especially under sustained high RPM operation. Feuling's Viton® valve seals are engineered to maintain a reliable barrier between your valve stems and guide bores, even in...09261169- SKU:
- 09261169
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- APPLICATION:
- INTAKE
- SIZE IMPERIAL:
- 0.500'
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
$15.95 -
FEULING OIL PUMP CORP. Valve Locks 1206
FEULING OIL PUMP CORP.
$29.95High-RPM engine builds demand precision valve control, and improper retainer height can cause float and catastrophic valve failure. These offset titanium valve locks solve that problem by raising your retainer .050" to optimize installed height and...09261170- SKU:
- 09261170
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- LOCK
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- UNITS:
- SET OF 8
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- STEM DIAMETER IMPERIAL:
- 0.3125'
$29.95 -
FEULING OIL PUMP CORP. Valve Locks 1213
FEULING OIL PUMP CORP.
$29.95If you're running a high-lift cam or pushing aggressive valve spring pressures, stock valve locks will cost you reliability. The FEULING OIL PUMP CORP. Valve Locks 1213 solve this problem by raising your retainer geometry, giving you the clearance needed...09261171- SKU:
- 09261171
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- LOCK
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- STEM DIAMETER METRIC:
- 7.00 MM
- TYPE:
- VALVE
- UNITS:
- SET OF 8
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
$29.95 -
FEULING OIL PUMP CORP. Valve Springs - Econo Beehive - Twin Cam 1121
FEULING OIL PUMP CORP.
$229.95Valve spring performance directly impacts engine reliability and rev capability—cheap springs fail under load, while properly engineered springs like Feuling's Econo Beehive deliver consistent lift curve control and extended fatigue life. This complete...09261468- SKU:
- 09261468
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- STYLE:
- OVATE WIRE BEEHIVE
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 0.3125'
- MATERIAL:
- STEEL
- APPLICATION:
- EXHAUST
- MODEL:
- ECONO BEEHIVE
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT:
- 0,585'
- SPRING LIFT IMPERIAL:
- 0.585'
- TYPE:
- VALVE
$229.95 -
FEULING OIL PUMP CORP. Valve Springs - High-Load 1201
FEULING OIL PUMP CORP.
$379.95High-load valve springs are critical to maintaining valve control under extreme RPM and boost conditions—without them, you risk valve float, bent pushrods, and catastrophic engine failure. The Feuling Oil Pump Corp. 1201 springs deliver the precise seat...09261469- SKU:
- 09261469
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MODEL:
- HIGH-LOAD BEEHIVE
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.750'
- APPLICATION:
- INTAKE
- COLLAR MATERIAL:
- TITANIUM
- SPRING LIFT:
- 0,750'
- STEM DIAMETER IMPERIAL:
- 0.3125'
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- TYPE:
- VALVE
$379.95 -
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
$319.95Qty in Cart: 0Quantity:Price:$319.95Subtotal: -
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
