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
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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 -
FEULING OIL PUMP CORP. Gear Drive Reaper Cam - 543 Series 1021
FEULING OIL PUMP CORP.
$399.95If you're looking for measurable power gains without sacrificing the smooth, streetable characteristics of your Harley, the Feuling 543 Series Reaper delivers. This cam outperforms the 525 in peak output while preserving low-end torque and maintaining a...09250674- SKU:
- 09250674
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 12°
- EXHAUST LIFT IMPERIAL:
- 0.553'
- INTAKE DURATION IMPERIAL:
- 238°
- INTAKE OPEN IMPERIAL:
- 15°
- EXHAUST DURATION IMPERIAL:
- 248°
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.140'
- MODEL:
- REAPER
- APPLICATION:
- INTAKE
- EXHAUST OPEN IMPERIAL:
- 56°
- GRIND:
- 543 SERIES
- INTAKE CLOSE IMPERIAL:
- 43°
- TYPE:
- GEAR
- INTAKE LIFT IMPERIAL:
- 0.543'
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$399.95 -
FEULING OIL PUMP CORP. Cam - 594 Series - Chain Drive 1303
FEULING OIL PUMP CORP.
$399.95The Feuling 594 Series camshaft unlocks serious performance gains across a wide range of big-inch Harley-Davidson engines, delivering a broad torque band that translates to real-world power when you need it. Whether you're running a 103", 110", or 124"...09250677- SKU:
- 09250677
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- GRIND:
- 594 SERIES
- MODEL:
- REAPER
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 16°
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- EXHAUST DURATION IMPERIAL:
- 260°
- INTAKE DURATION IMPERIAL:
- 255°
- INTAKE LIFT IMPERIAL:
- 0.594'
- TYPE:
- CHAIN
- EXHAUST LIFT IMPERIAL:
- 0.604'
- EXHAUST OPEN IMPERIAL:
- 64°
- INTAKE CLOSE IMPERIAL:
- 56°
- INTAKE OPEN IMPERIAL:
- 19°
- PRODUCT NAME:
- CAMSHAFT
- UNITS:
- PAIR
$399.95 -
FEULING OIL PUMP CORP. Complete Cam Kit - 543C 7230
FEULING OIL PUMP CORP.
$1,649.95If you're running a high-performance engine that demands reliable oiling, consistent oil pressure, and cooler operating temperatures, the Feuling Oil Pump Corp. Complete Cam Kit delivers everything you need in one comprehensive package. This kit...09250681- SKU:
- 09250681
- Availability:
- Ships Same Business Day
- Weight:
- 11.20 LBS
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 248°
- INTAKE OPEN IMPERIAL:
- 15°
- MODEL:
- HP+®
- TYPE:
- CHAIN
- EXHAUST LIFT IMPERIAL:
- 0.574'
- INTAKE DURATION IMPERIAL:
- 238°
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 12°
- EXHAUST OPEN IMPERIAL:
- 56°
- GRIND:
- 543 SERIES
- INTAKE CLOSE IMPERIAL:
- 43°
- PRODUCT NAME:
- CAM PLATE KIT
- INTAKE LIFT IMPERIAL:
- 0.543'
- RIDING STYLE:
- STREET
$1,649.95 -
FEULING OIL PUMP CORP. Complete Cam Kit - 525G 7205
FEULING OIL PUMP CORP.
$1,649.95If you're running a Harley with inconsistent oil temps, weak oil pressure, or that telltale wet-sump mess, the Feuling 525G Complete Cam Kit addresses all of these problems in one comprehensive package. This isn't a bolt-on bandage—it's a complete...09250690- SKU:
- 09250690
- Availability:
- Ships Same Business Day
- Weight:
- 10.90 LBS
- EXHAUST OPEN IMPERIAL:
- 51°
- INTAKE CLOSE IMPERIAL:
- 42°
- APPLICATION:
- EXHAUST
- GRIND:
- 525 SERIES
- INTAKE OPEN IMPERIAL:
- 4°
- PRODUCT NAME:
- CAM PLATE KIT
- EXHAUST DURATION IMPERIAL:
- 236°
- EXHAUST LIFT IMPERIAL:
- 0.535'
- INTAKE LIFT IMPERIAL:
- 0.525'
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 5°
- INTAKE DURATION IMPERIAL:
- 226°
- MODEL:
- HP+®
- TYPE:
- GEAR
- UNITS:
- KIT
$1,649.95 -
FEULING OIL PUMP CORP. Complete Cam Kit - 574G - Twin Cam 7208
FEULING OIL PUMP CORP.
$1,649.95If you're running a Twin Cam engine, camshaft performance directly impacts oil cooling, pressure stability, and overall reliability—especially under sustained high-RPM operation. This complete Feuling kit eliminates the guesswork by pairing high-volume...09250691- SKU:
- 09250691
- Availability:
- Ships Same Business Day
- Weight:
- 10.60 LBS
- EXHAUST CLOSE IMPERIAL:
- 14°
- EXHAUST OPEN IMPERIAL:
- 61°
- INTAKE DURATION IMPERIAL:
- 240°
- RIDING STYLE:
- STREET
- EXHAUST LIFT IMPERIAL:
- 0.574'
- GRIND:
- 574 SERIES
- INTAKE LIFT IMPERIAL:
- 0.574'
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- INTAKE CLOSE IMPERIAL:
- 45°
- PRODUCT NAME:
- CAM PLATE KIT
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 255°
- INTAKE OPEN IMPERIAL:
- 15°
- MODEL:
- HP+®
- TYPE:
- GEAR
$1,649.95 -
FEULING OIL PUMP CORP. Complete Cam Kit - 543G - Twin Cam 7233
FEULING OIL PUMP CORP.
$1,649.95If you're running a Twin Cam engine and want measurable gains in reliability, oil pressure, and thermal management, a complete cam kit is the most efficient path to a properly synchronized top end. The FEULING 543G eliminates the guesswork of piecing...09250692- SKU:
- 09250692
- Availability:
- Ships Same Business Day
- Weight:
- 12.10 LBS
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 248°
- INTAKE CLOSE IMPERIAL:
- 43°
- MODEL:
- HP+®
- TYPE:
- GEAR
- UNITS:
- KIT
- EXHAUST LIFT IMPERIAL:
- 0.574'
- INTAKE DURATION IMPERIAL:
- 238°
- INTAKE LIFT IMPERIAL:
- 0.543'
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 12°
- INTAKE OPEN IMPERIAL:
- 15°
- PRODUCT NAME:
- CAM PLATE KIT
- EXHAUST OPEN IMPERIAL:
- 56°
- GRIND:
- 543 SERIES
$1,649.95 -
FEULING OIL PUMP CORP. OE+ Cam Plate - Gear 8030
FEULING OIL PUMP CORP.
$299.95If you're running an early Twin Cam® engine with newer-generation camshafts, you need a cam plate that bridges the gap between old and new—without compromises on oil pressure or reliability. The FEULING OE+ Cam Plate (Gear 8030) delivers exactly that: a...09250839- SKU:
- 09250839
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CAM PLATE
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- MODEL:
- OE+
$299.95 -
FEULING OIL PUMP CORP. OE+ Cam Plate - Chain 8031
FEULING OIL PUMP CORP.
$309.95If you're running 99-06 Twin Cam® camshafts but want the reliability and tighter tolerances of modern hydraulic chain tensioning, this OE+ cam plate bridges that gap without sacrificing compatibility. FEULING's billet 6061 aluminum construction and...09250840- SKU:
- 09250840
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- BASE COLOR:
- SILVER
- MODEL:
- OE+
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CHAIN
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CAM PLATE
$309.95 -
FEULING OIL PUMP CORP. OE+ Cam Plate - Conversion 8032
FEULING OIL PUMP CORP.
$309.95If you're running early Twin Cam® architecture but want the reliability and efficiency of modern hydraulic chain tensioning, this cam plate bridges that gap without compromising your existing camshaft investment. FEULING's OE+ design eliminates the...09250841- SKU:
- 09250841
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- ALUMINUM
- MODEL:
- OE+
- PRODUCT NAME:
- CAM PLATE
- TYPE:
- HYDRAULIC
- BASE COLOR:
- SILVER
- TYPE:
- CHAIN
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$309.95 -
FEULING OIL PUMP CORP. OE+ Cam Plate - Twin Cam 8033
FEULING OIL PUMP CORP.
$309.95If you're running a modified Twin Cam engine with early-style camshafts but want the reliability and precision of modern hydraulic chain tensioning, this is your direct solution. The FEULING OE+ Cam Plate eliminates guesswork by providing a pre-set,...09250842- SKU:
- 09250842
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MODEL:
- OE+
- TYPE:
- CHAIN
- TYPE:
- GEAR
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CAM PLATE
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$309.95 -
FEULING OIL PUMP CORP. Gear Drive Reaper Cam - 543 Series - Twin Cam 1022
FEULING OIL PUMP CORP.
$399.95If you're running a stock to mid-displacement Twin Cam and want genuine power gains without sacrificing low-end torque or drivability, the Feuling 543 Series Gear Drive Reaper delivers. This cam profile is engineered for smooth, responsive power across a...09250727- SKU:
- 09250727
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- EXHAUST OPEN IMPERIAL:
- 56°
- GRIND:
- 543 SERIES
- INTAKE CLOSE IMPERIAL:
- 43°
- INTAKE LIFT IMPERIAL:
- 0.543'
- PRODUCT NAME:
- CAMSHAFT
- EXHAUST CLOSE IMPERIAL:
- 12°
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.140'
- EXHAUST LIFT IMPERIAL:
- 0.553'
- INTAKE DURATION IMPERIAL:
- 238°
- INTAKE OPEN IMPERIAL:
- 15°
- MODEL:
- REAPER
- UNITS:
- PAIR
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 248°
- TYPE:
- GEAR
$399.95 -
FEULING OIL PUMP CORP. HP+‚® Pushrods - Standard - Twin Cam 4072
FEULING OIL PUMP CORP.
$179.95Twin Cam valvetrain stability is critical—adjustable pushrods introduce harmonics that compromise lift consistency and accelerate hydraulic lifter wear. Feuling's one-piece 4130 chromoly HP+ Pushrods eliminate that instability by maintaining fixed...09280101- SKU:
- 09280101
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- UNITS:
- SET OF 4
- STYLE:
- FIXED LENGTH
- FEATURES:
- STOCK REPLACEMENT
- PRODUCT NAME:
- PUSHROD
- RIDING STYLE:
- STREET
$179.95 -
FEULING OIL PUMP CORP. Inner Cam Bearings 2076
FEULING OIL PUMP CORP.
$32.95High-performance engines demand bearings that can handle sustained elevated loads without compromise. The Feuling Oil Pump Corp. Inner Cam Bearings (2076) are engineered with full-complement bearing technology to support aggressive cam profiles and...09240239- SKU:
- 09240239
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- BEARING
- UNITS:
- PAIR
- APPLICATION:
- CAMSHAFT
- TYPE:
- NEEDLE
- RIDING STYLE:
- STREET
$32.95 -
FEULING OIL PUMP CORP. Chain Drive Reaper Cam - 543 Series - Twin Cam 1020
FEULING OIL PUMP CORP.
$399.95If you're running a Twin Cam engine and want measurable gains in mid-range power without sacrificing the low-end torque that makes your bike rideable, the Feuling 543 Series Chain Drive Reaper Cam delivers exactly that. This cam profile strikes the rare...09250673- SKU:
- 09250673
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 12°
- EXHAUST DURATION IMPERIAL:
- 248°
- INTAKE DURATION IMPERIAL:
- 238°
- INTAKE OPEN IMPERIAL:
- 15°
- TYPE:
- CHAIN
- EXHAUST OPEN IMPERIAL:
- 56°
- GRIND:
- 543 SERIES
- INTAKE CLOSE IMPERIAL:
- 43°
- PRODUCT NAME:
- CAMSHAFT
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.140'
- EXHAUST LIFT IMPERIAL:
- 0.553'
- MODEL:
- REAPER
- UNITS:
- PAIR
- INTAKE LIFT IMPERIAL:
- 0.543'
- RIDING STYLE:
- STREET
$399.95
