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 Line with Fittings - Stainless Steel - 13" 613
DRAG SPECIALTIES
$32.81Reliable oil lines are fundamental to engine longevity and consistent performance in high-demand racing applications. This stainless steel line resists corrosion and thermal degradation while the chrome compression fittings ensure leak-free connections...07110048- SKU:
- 07110048
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- COLOR/FINISH:
- CHROME
- INSIDE DIAMETER METRIC:
- 8.7 MM
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 11/32'
- PRODUCT NAME:
- LINE
- BASE COLOR:
- SILVER
- FITTING CONNECTOR TYPE:
- 1/8' NPT
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- LENGTH IMPERIAL:
- 13'
- LENGTH METRIC:
- 33 CM
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- BRAIDED
- STYLE:
- UNIVERSAL
$32.81 -
DRAG SPECIALTIES Oil Line with Fittings - Stainless Steel - 16" 616
DRAG SPECIALTIES
$34.93Reliable oil line routing is critical for maintaining consistent pressure and preventing leaks in high-performance engine builds. This stainless steel line from Drag Specialties combines corrosion resistance with precision fitment, ensuring your oil...07110051- SKU:
- 07110051
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BASE COLOR:
- SILVER
- LENGTH IMPERIAL:
- 16'
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- INSIDE DIAMETER IMPERIAL:
- 11/32'
- LENGTH METRIC:
- 40.5 CM
- PRODUCT NAME:
- LINE
- STYLE:
- UNIVERSAL
- COLOR/FINISH:
- CHROME
- FITTING CONNECTOR TYPE:
- 1/8' NPT
- INSIDE DIAMETER METRIC:
- 8.7 MM
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- STYLE:
- BRAIDED
$34.93 -
DRAG SPECIALTIES Oil Line with Fittings - Stainless Steel - 20" 620
DRAG SPECIALTIES
$37.05Reliable oil delivery is non-negotiable in high-performance applications—any leak or restriction compromises engine protection and efficiency. This stainless steel oil line delivers consistent flow with zero corrosion risk, while the 1/8" NPT compression...07110054- SKU:
- 07110054
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- CHROME
- FITTING CONNECTOR TYPE:
- 1/8' NPT
- INSIDE DIAMETER METRIC:
- 8.7 MM
- PRODUCT NAME:
- LINE
- BASE COLOR:
- SILVER
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- BRAIDED
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 11/32'
- LENGTH IMPERIAL:
- 20'
- LENGTH METRIC:
- 51 CM
- STYLE:
- UNIVERSAL
$37.05 -
DRAG SPECIALTIES Oil Line with Fittings - Stainless Steel - 24" 624
DRAG SPECIALTIES
$39.17Reliable oil lines are critical to maintaining consistent pressure and flow in high-performance engines—failure isn't an option when you're on the track or the street. This Drag Specialties stainless steel oil line combines corrosion-resistant...07110056- SKU:
- 07110056
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- CHROME
- FITTING CONNECTOR TYPE:
- 1/8' NPT
- INSIDE DIAMETER METRIC:
- 8.7 MM
- PRODUCT NAME:
- LINE
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- LENGTH IMPERIAL:
- 24'
- LENGTH METRIC:
- 61 CM
- STYLE:
- BRAIDED
- INSIDE DIAMETER IMPERIAL:
- 11/32'
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- UNIVERSAL
$39.17 -
DRAG SPECIALTIES Custom Oil Filter Mount 20302-BX-LB1
DRAG SPECIALTIES
$64.00If you're running a custom oil cooling system or need a more robust mount than the OEM cast alternative, the DRAG SPECIALTIES Custom Oil Filter Mount delivers proven reliability in high-performance applications. This CNC-precision component accepts all...DS275104- SKU:
- DS275104
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- TYPE:
- OIL FILTER
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- MOUNT
$64.00 -
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 -
DRAG SPECIALTIES Oil Plug - With Temperature Gauge 82574
DRAG SPECIALTIES
$98.53Real-time oil temperature monitoring is essential for high-performance driving—whether you're on the track or pushing your engine to its limits on the street. This DRAG SPECIALTIES oil plug gives you direct visibility into your oil's thermal state,...07100047- SKU:
- 07100047
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- RIDING STYLE:
- STREET
- STYLE:
- ELECTRONIC
- HOUSING COLOR:
- CHROME
- PRODUCT NAME:
- OIL PLUG
- TYPE:
- TEMPERATURE GAUGE
- LENGTH IMPERIAL:
- 1.625'
- UNITS:
- EACH
$98.53Qty in Cart: 0Quantity:Price:$98.53Subtotal: -
FEULING OIL PUMP CORP. Complete Cam Kit - 574C 7209
FEULING OIL PUMP CORP.
$1,649.95If your Harley's camchest is holding back peak performance, the Feuling 574C Complete Cam Kit addresses every weak point—from oil circulation to thermal management. This comprehensive solution replaces aging components throughout your top end, delivering...09250517- SKU:
- 09250517
- Availability:
- Ships Same Business Day
- Weight:
- 11.75 LBS
- EXHAUST CLOSE IMPERIAL:
- 14°
- EXHAUST OPEN IMPERIAL:
- 61°
- GRIND:
- 574 SERIES
- TYPE:
- CHAIN
- APPLICATION:
- EXHAUST
- INTAKE CLOSE IMPERIAL:
- 45°
- INTAKE OPEN IMPERIAL:
- 15°
- PRODUCT NAME:
- CAM PLATE KIT
- EXHAUST LIFT IMPERIAL:
- 0.574'
- INTAKE DURATION IMPERIAL:
- 240°
- INTAKE LIFT IMPERIAL:
- 0.574'
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- EXHAUST DURATION IMPERIAL:
- 255°
- MODEL:
- HP+®
- UNITS:
- KIT
$1,649.95Qty in Cart: 0Quantity:Price:$1,649.95Subtotal: -
FEULING OIL PUMP CORP. Complete Cam Kit - 525G 7204
FEULING OIL PUMP CORP.
$1,649.95A 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°
$1,649.95 -
FEULING OIL PUMP CORP. Chain Conversion Reaper Cam - Twin Cam 1017
FEULING OIL PUMP CORP.
$409.95If 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
$409.95 -
FEULING OIL PUMP CORP. Camshaft Installation Kit - Chain Conversion 2064
FEULING OIL PUMP CORP.
$121.95A 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
$121.95 -
FEULING OIL PUMP CORP. Chain Drive Reaper Conversion Cam - 543 Series 1015
FEULING OIL PUMP CORP.
$409.95The 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
$409.95 -
FEULING OIL PUMP CORP. Cam - 594 Series - Chain Conversion 1019
FEULING OIL PUMP CORP.
$409.95The 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
$409.95 -
FEULING OIL PUMP CORP. SPROCKET CAM CHAIN RR KT 1093
FEULING OIL PUMP CORP.
$129.95Precise 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
$129.95 -
FEULING OIL PUMP CORP. SPROCKET CAM CHAIN REAR 1094
FEULING OIL PUMP CORP.
$79.95Precise 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
$79.95 -
FEULING OIL PUMP CORP. Cam - 538 Series - Chain Drive 1351
FEULING OIL PUMP CORP.
$329.95The 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
$329.95 -
FEULING OIL PUMP CORP. Race Series Camshaft Kit 1461
FEULING OIL PUMP CORP.
$699.95A 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
$699.95 -
FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7205P
FEULING OIL PUMP CORP.
$1,649.95If 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+®
$1,649.95 -
FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7206P
FEULING OIL PUMP CORP.
$1,649.95If you're running a Twin Cam engine and want measurable improvements in reliability, oil temperature control, and engine longevity, a complete camchest overhaul isn't optional—it's essential. The Feuling HP+® Camchest Kit delivers maximum oil flow,...09251377- SKU:
- 09251377
- Availability:
- Ships Same Business Day
- Weight:
- 11.76 LBS
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
- GRIND:
- 525 SERIES
- MODEL:
- HP+®
- RIDING STYLE:
- STREET
- TYPE:
- CHAIN
$1,649.95Qty in Cart: 0Quantity:Price:$1,649.95Subtotal: -
FEULING OIL PUMP CORP. Camchest Kit - HP+‚® - Twin Cam 7207P
FEULING OIL PUMP CORP.
$1,649.95If 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
$1,649.95
