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
-
DRAG SPECIALTIES Oil Plug with LCD 46472
DRAG SPECIALTIES
$144.11Real-time oil temperature monitoring is essential for engine longevity and performance tuning, especially when pushing your engine to its limits. This billet aluminum oil plug replaces guesswork with precise LCD readouts, giving you the data needed to...07100033- SKU:
- 07100033
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- BASE FINISH:
- POLISHED
- COLOR/FINISH:
- POLISHED
- FEATURES:
- LCD DISPLAY
- MATERIAL:
- ALUMINUM
- FEATURES:
- TEMPERATURE GAUGE
- PRODUCT NAME:
- OIL DIPSTICK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- OIL FILLER CAP
$144.11 -
FEULING OIL PUMP CORP. Complete Cam Kit - 525G 7204
FEULING OIL PUMP CORP.
$1,748.95A complete cam kit is the foundation of engine reliability and performance—this Feuling system delivers maximum oil pressure, superior cooling, and smooth operation by addressing the entire camchest from top to bottom. If you're running stock or tired of...09250518- SKU:
- 09250518
- Availability:
- Ships Same Business Day
- Weight:
- 11.08 LBS
- INTAKE OPEN IMPERIAL:
- 4°
- PRODUCT NAME:
- CAM PLATE KIT
- UNITS:
- KIT
- GRIND:
- 525 SERIES
- INTAKE LIFT IMPERIAL:
- 0.525'
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 5°
- EXHAUST DURATION IMPERIAL:
- 236°
- MODEL:
- HP+®
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- APPLICATION:
- EXHAUST
- EXHAUST LIFT IMPERIAL:
- 0.535'
- EXHAUST OPEN IMPERIAL:
- 51°
- INTAKE CLOSE IMPERIAL:
- 42°
- INTAKE DURATION IMPERIAL:
- 226°
$1,748.95 -
FEULING OIL PUMP CORP. Chain Conversion Reaper Cam - Twin Cam 1017
FEULING OIL PUMP CORP.
$434.55If you're running a stock 96", 103", or 110" Twin Cam or stepping up with modified heads and compression, the Feuling 1017 Chain Conversion Reaper Cam delivers the power band you need without sacrificing streetability. This bolt-in cam features an...09250607- SKU:
- 09250607
- Availability:
- Ships Same Business Day
- Weight:
- 2.86 LBS
- APPLICATION:
- EXHAUST
- EXHAUST LIFT IMPERIAL:
- 0.574'
- EXHAUST CLOSE IMPERIAL:
- 14°
- EXHAUST OPEN IMPERIAL:
- 61°
- GRIND:
- 574 SERIES
- INTAKE OPEN IMPERIAL:
- 15°
- MODEL:
- REAPER
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 255°
- TYPE:
- CHAIN CONVERSION
- INTAKE CLOSE IMPERIAL:
- 45°
- INTAKE DURATION IMPERIAL:
- 240°
- INTAKE LIFT IMPERIAL:
- 0.574'
- PRODUCT NAME:
- CAMSHAFT
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$434.55 -
FEULING OIL PUMP CORP. Camshaft Installation Kit - Chain Conversion 2064
FEULING OIL PUMP CORP.
$129.27A camshaft installation demands precision fastening and proper bearing support—compromises here lead to timing issues, bearing wear, and catastrophic engine failure. The FEULING Oil Pump Corp. Camshaft Installation Kit eliminates guesswork by bundling...09250628- SKU:
- 09250628
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN CONVERSION
- MODEL:
- PLUS
- PRODUCT NAME:
- INSTALLATION KIT
$129.27 -
FEULING OIL PUMP CORP. Chain Drive Reaper Conversion Cam - 543 Series 1015
FEULING OIL PUMP CORP.
$434.55The Feuling Oil Pump Corp. Chain Drive Reaper Conversion Cam delivers measurable power gains across your entire powerband without sacrificing the low-end torque that keeps your ride responsive off the line. Its engineered lobe geometry maintains a quiet...09250671- SKU:
- 09250671
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- INTAKE CLOSE IMPERIAL:
- 43°
- PRODUCT NAME:
- CAMSHAFT
- UNITS:
- PAIR
- APPLICATION:
- EXHAUST
- EXHAUST CLOSE IMPERIAL:
- 12°
- EXHAUST DURATION IMPERIAL:
- 248°
- INTAKE OPEN IMPERIAL:
- 15°
- APPLICATION:
- INTAKE
- EXHAUST LIFT IMPERIAL:
- 0.574'
- INTAKE DURATION IMPERIAL:
- 238°
- INTAKE LIFT IMPERIAL:
- 0.543'
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN CONVERSION
- EXHAUST OPEN IMPERIAL:
- 56°
- GRIND:
- 543 SERIES
- MODEL:
- REAPER
$434.55 -
FEULING OIL PUMP CORP. Cam - 594 Series - Chain Conversion 1019
FEULING OIL PUMP CORP.
$434.55The Feuling 594 Series cam delivers substantial torque and horsepower gains across a wide RPM range, making it the ideal choice for riders pushing their big-inch motors to the limit. Whether you're running a heavyweight 103", 110", or 124" engine or a...09250672- SKU:
- 09250672
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- APPLICATION:
- INTAKE
- EXHAUST CLOSE IMPERIAL:
- 16°
- EXHAUST OPEN IMPERIAL:
- 64°
- INTAKE CLOSE IMPERIAL:
- 56°
- INTAKE DURATION IMPERIAL:
- 255°
- INTAKE LIFT IMPERIAL:
- 0.594'
- EXHAUST LIFT IMPERIAL:
- 0.604'
- MODEL:
- REAPER
- UNITS:
- PAIR
- APPLICATION:
- EXHAUST
- INTAKE OPEN IMPERIAL:
- 19°
- PRODUCT NAME:
- CAMSHAFT
- EXHAUST DURATION IMPERIAL:
- 260°
- GRIND:
- 594 SERIES
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN CONVERSION
$434.55 -
FEULING OIL PUMP CORP. SPROCKET CAM CHAIN RR KT 1093
FEULING OIL PUMP CORP.
$137.75Precise cam chain timing is fundamental to engine reliability and performance—especially under high-RPM operation where factory components often fail. The Feuling Oil Pump Corp. Sprocket delivers OEM-quality construction with proven durability in...09251370- SKU:
- 09251370
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- TYPE:
- CAM CHAIN
- UNITS:
- EACH
$137.75 -
FEULING OIL PUMP CORP. SPROCKET CAM CHAIN REAR 1094
FEULING OIL PUMP CORP.
$84.75Precise cam chain timing is non-negotiable for maintaining valve overlap and maximizing power delivery across your RPM range. The Feuling Oil Pump Corp. Sprocket Cam Chain Rear 1094 is engineered to exacting tolerances, ensuring reliable engagement and...09251371- SKU:
- 09251371
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TYPE:
- CAM CHAIN
- UNITS:
- EACH
$84.75 -
FEULING OIL PUMP CORP. Cam - 538 Series - Chain Drive 1351
FEULING OIL PUMP CORP.
$349.75The Feuling 538 Series cam delivers aggressive lift and duration curves engineered for maximum horsepower and torque across the RPM band, making it the ideal choice for riders pushing their engines to the limit. Built to Feuling's exacting standards,...09251372- SKU:
- 09251372
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- GRIND:
- 538 SERIES
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN
- MODEL:
- REAPER
- PRODUCT NAME:
- CAM
- UNITS:
- EACH
$349.75 -
FEULING OIL PUMP CORP. Race Series Camshaft Kit 1461
FEULING OIL PUMP CORP.
$741.95A properly engineered camshaft is the foundation of a high-revving engine's performance—it directly controls valve timing, lift, and duration, which determine your power band characteristics and peak horsepower potential. The FEULING OIL PUMP CORP. Race...09251374- SKU:
- 09251374
- Availability:
- Ships Same Business Day
- Weight:
- 4.41 LBS
- MODEL:
- RACE SERIES®
- UNITS:
- KIT
- GRIND:
- 538 SERIES
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CAMSHAFT KIT
- TYPE:
- CHAIN
$741.95 -
FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7205P
FEULING OIL PUMP CORP.
$1,748.95If you're running a Twin Cam engine, camchest reliability directly impacts your power output, oil temps, and engine longevity. The Feuling HP+® Camchest Kit gives you a complete top-to-bottom solution that eliminates weak points in OEM design—higher oil...09251376- SKU:
- 09251376
- Availability:
- Ships Same Business Day
- Weight:
- 11.21 LBS
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
- GRIND:
- 525 SERIES
- PRODUCT NAME:
- CAMCHEST KIT
- MODEL:
- HP+®
$1,748.95 -
FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7207P
FEULING OIL PUMP CORP.
$1,748.95If you're running a Twin Cam engine and tired of dealing with wet sumping, excessive oil temps, and marginal oil pressure, the Feuling HP+ Camchest Kit is the comprehensive solution that addresses every weak point in your top-end oiling system. This...09251378- SKU:
- 09251378
- Availability:
- Ships Same Business Day
- Weight:
- 11.26 LBS
- MODEL:
- HP+®
- TYPE:
- GEAR
- GRIND:
- 574 SERIES
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$1,748.95 -
FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7208P
FEULING OIL PUMP CORP.
$1,748.95If you're running a Twin Cam engine and want measurable gains in reliability, cooling, and oil pressure without compromise, this complete camchest overhaul delivers. The Feuling HP+® kit replaces every critical component from the cam plate down,...09251379- SKU:
- 09251379
- Availability:
- Ships Same Business Day
- Weight:
- 9.81 LBS
- GRIND:
- 574 SERIES
- MODEL:
- HP+®
- TYPE:
- GEAR
- PRODUCT NAME:
- CAMCHEST KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$1,748.95 -
FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7209P
FEULING OIL PUMP CORP.
$1,748.95If you're running a Twin Cam engine, the camchest is where peak performance lives—and this Feuling HP+® kit gives you complete control over oil flow, cooling, and reliability. By increasing oil pressure and scavenge volume while dropping engine...09251380- SKU:
- 09251380
- Availability:
- Ships Same Business Day
- Weight:
- 11.56 LBS
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- GRIND:
- 574 SERIES
- MODEL:
- HP+®
- TYPE:
- CHAIN
$1,748.95 -
FEULING OIL PUMP CORP. Valve Springs - Econo Beehive - Twin Cam 1123
FEULING OIL PUMP CORP.
$309.95High-revving performance demands valve springs engineered for reliability at sustained RPMs, and the Feuling Econo Beehive delivers proven track performance without the premium price tag. These conical ovate wire springs are stress-relieved for...09263323- SKU:
- 09263323
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
- MODEL:
- ECONO BEEHIVE
- PRODUCT NAME:
- SPRING KIT
- STEM DIAMETER IMPERIAL:
- 0.3125'
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- STREET
- STYLE:
- OVATE WIRE BEEHIVE
- MATERIAL:
- STEEL
- UNITS:
- KIT
$309.95 -
FEULING OIL PUMP CORP. HP+‚® Pushrods - M8 4087
FEULING OIL PUMP CORP.
$190.75The M8 engine's dual-valve-per-rocker design creates unique harmonic challenges that adjustable pushrods simply can't handle—one-piece construction maintains precise valve lift while eliminating the slack that causes lifter wear and performance loss...09280091- SKU:
- 09280091
- Availability:
- Ships Same Business Day
- Weight:
- 1.51 LBS
- PRODUCT NAME:
- PUSHROD
- FEATURES:
- STOCK REPLACEMENT
- RIDING STYLE:
- STREET
- STYLE:
- FIXED LENGTH
- UNITS:
- SET OF 4
$190.75 -
FEULING OIL PUMP CORP. HP+‚® Pushrods - +.030" - Twin Cam 4073
FEULING OIL PUMP CORP.
$190.75Twin Cam 4-valve engines demand valvetrain stability to maintain peak performance and reliability. Adjustable pushrods introduce harmonics and lifter wear—one-piece designs eliminate these variables entirely. Feuling's HP+ Pushrods are engineered to...09280102- SKU:
- 09280102
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- FEATURES:
- 0.030' LONGER
- UNITS:
- SET OF 4
- PRODUCT NAME:
- PUSHROD
- RIDING STYLE:
- STREET
- STYLE:
- FIXED LENGTH
$190.75 -
FEULING OIL PUMP CORP. Lifters - Race Series - Evolution 4062
FEULING OIL PUMP CORP.
$319.95Full-travel hydraulic lifters made from machined steel, Exceed the needs of large-lift camshafts and higher spring pressures with a slower bleed-down rate, Maintain proper and critical oil flow to valves, springs, rockers, shafts and valve guides,...09290022- SKU:
- 09290022
- Availability:
- Ships Same Business Day
- Weight:
- 1.56 LBS
- RIDING STYLE:
- STREET
- SIZE:
- STANDARD
- TYPE:
- HYDRAULIC
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MODEL:
- RACE SERIES®
- SIZE IMPERIAL:
- STANDARD
- UNITS:
- SET OF 4
- MATERIAL:
- STEEL
- PRODUCT NAME:
- LIFTER
- STYLE:
- FULL-TRAVEL
$319.95 -
FEULING OIL PUMP CORP. Race Series‚® Solid Lifters - Twin Cam 4055
FEULING OIL PUMP CORP.
$299.95Designed for engines with radical valve spring pressures and large lift camshafts; maintain proper and critical oil flow to top end with metered oiling, Optimize valvetrain stability, increase engine rpm, horsepower and torque output, Decrease valve...09290024- SKU:
- 09290024
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- DIAMETER IMPERIAL:
- 0.8425'
- MATERIAL:
- STEEL
- MODEL:
- RACE SERIES®
- PRODUCT NAME:
- LIFTER
- UNITS:
- SET OF 4
- STYLE:
- SOLID
$299.95 -
FEULING OIL PUMP CORP. Valve Seals - M8 1080
FEULING OIL PUMP CORP.
$19.95High-quality Viton® valve seals, Designed to handle high engine temperatures with a built-in spring-loaded wiper to clean excess oil from valve stem with minimal friction, Include four seals and seal installer tool, Made in the U.S.A.09262925- SKU:
- 09262925
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
- UNITS:
- 8 PACK
- APPLICATION:
- EXHAUST
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
- TYPE:
- VALVE
$19.95
