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
-
ALLOY ART Compression Release Adapter - 14 mm x 3/8" CRA-2
ALLOY ART
$20.95Running twin plug heads but only need single ignition? The ALLOY ART Compression Release Adapter eliminates unnecessary complexity by cleanly blanking off that secondary spark plug hole—no drilling, no fabrication required. This CNC-precision adapter...09500081- SKU:
- 09500081
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- COMPRESSION RELEASE
- UNITS:
- EACH
- CONNECTOR ANGLE:
- STRAIGHT
- SIZE:
- 14 MM - 3/8'
- PRODUCT NAME:
- ADAPTER
- RIDING STYLE:
- STREET
$20.95 -
FEULING OIL PUMP CORP. Chain Drive Cam - 630 Series 1012
FEULING OIL PUMP CORP.
$399.95If you're serious about extracting maximum horsepower from your engine while maintaining responsive low-end performance, the FEULING OIL PUMP CORP. Chain Drive Cam 630 Series is engineered for aggressive street and track applications. This cam profile...09250433- SKU:
- 09250433
- Availability:
- Ships Same Business Day
- Weight:
- 3.16 LBS
- RIDING STYLE:
- STREET
- EXHAUST CLOSE IMPERIAL:
- 19°
- EXHAUST OPEN IMPERIAL:
- 64°
- INTAKE CLOSE IMPERIAL:
- 58°
- INTAKE DURATION IMPERIAL:
- 258°
- INTAKE LIFT IMPERIAL:
- 0.630'
- PRODUCT NAME:
- CAMSHAFT
- EXHAUST DURATION IMPERIAL:
- 263°
- MODEL:
- REAPER
- UNITS:
- PAIR
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- EXHAUST LIFT IMPERIAL:
- 0.630'
- GRIND:
- 630 SERIES
- INTAKE OPEN IMPERIAL:
- 20°
- TYPE:
- CHAIN
$399.95 -
FEULING OIL PUMP CORP. Top End Cam Install Kit - M8 2030
FEULING OIL PUMP CORP.
$119.95A proper top-end rebuild demands precision fasteners, quality bearings, and OEM gasket materials—all sourced and tested together. This Feuling kit eliminates guesswork by bundling everything needed for M8 cam installation, saving you time on sourcing and...09345984- SKU:
- 09345984
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CAM CHANGE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$119.95 -
FEULING OIL PUMP CORP. Point Cover - 5 Hole - Black 9124
FEULING OIL PUMP CORP.
$69.95A quality point cover does more than protect your ignition system—it defines the visual character of your engine bay while safeguarding critical components from dirt and moisture. The Feuling 5-Hole Point Cover combines precision engineering with clean...09401493- SKU:
- 09401493
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- TYPE:
- POINT
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
$69.95 -
FEULING OIL PUMP CORP. Chain Drive Conversion Kit 7078
FEULING OIL PUMP CORP.
$49.95Stock gear-driven oil pump systems are inherently limited by their design—they generate parasitic drag, create noise, and struggle to maintain consistent pressure at extreme RPMs. The Feuling Oil Pump Corp. Chain Drive Conversion Kit 7078 replaces that...09320035- SKU:
- 09320035
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- TYPE:
- OIL SYSTEM
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- STYLE:
- CHAIN DRIVE
- PRODUCT NAME:
- CONVERSION KIT
$49.95 -
FEULING OIL PUMP CORP. Block Off Cam Plate - Big Twin 8016
FEULING OIL PUMP CORP.
$29.95When you transition to a gear-driven cam system on your Big Twin, the factory hydraulic chain tensioner becomes obsolete—and leaving those ports open invites oil leaks and compromises engine sealing. The Feuling Oil Pump Corp. Block Off Cam Plate seals...09320036- SKU:
- 09320036
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- PRODUCT NAME:
- PLATE
- TYPE:
- BLOCK-OFF
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$29.95 -
FEULING OIL PUMP CORP. Cam Spacers Kit 8040
FEULING OIL PUMP CORP.
$42.95Proper cam chain alignment is critical for reliable valve timing and engine longevity—especially when upgrading to a late-style hydraulic tensioner system on early-model Harley-Davidsons. The FEULING OIL PUMP CORP. Cam Spacers Kit 8040 provides...09250950- SKU:
- 09250950
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- TYPE:
- SPROCKET ALIGNMENT
- PRODUCT NAME:
- SPACER KIT
- RIDING STYLE:
- STREET
- UNITS:
- 6 PACK
$42.95 -
FEULING OIL PUMP CORP. Cam Kit Washers 8041
FEULING OIL PUMP CORP.
$45.95Proper cam timing is non-negotiable for reliable engine performance and longevity. Misaligned camshaft sprockets introduce premature chain wear, increased valve train noise, and potential catastrophic failure. The Feuling Oil Pump Corp. Cam Kit Washers...09250951- SKU:
- 09250951
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- SPROCKET SPACING ALIGNMENT/THRUST WASHER
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$45.95 -
FEULING OIL PUMP CORP. Inner Silent Chain 8062
FEULING OIL PUMP CORP.
$42.95A worn or damaged silent chain directly compromises engine reliability and can lead to catastrophic internal damage if ignored. The Feuling Oil Pump Corp. Inner Silent Chain 8062 restores proper chain tension and engagement, ensuring consistent oil pump...09250955- SKU:
- 09250955
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MOUNTING POSITION:
- INNER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CHAIN
- TYPE:
- CAM
- NUMBER OF LINKS:
- 16
- UNITS:
- EACH
$42.95 -
FEULING OIL PUMP CORP. Outer Silent Chain 8063
FEULING OIL PUMP CORP.
$42.95A worn or damaged outer silent chain compromises valve timing precision and can lead to catastrophic engine failure. The Feuling Oil Pump Corp. Outer Silent Chain 8063 restores OEM specifications with a direct-fit replacement built to the same exacting...09250956- SKU:
- 09250956
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MOUNTING POSITION:
- OUTER
- RIDING STYLE:
- STREET
- TYPE:
- CAM
- NUMBER OF LINKS:
- 22
- PRODUCT NAME:
- CHAIN
- UNITS:
- EACH
$42.95 -
FEULING OIL PUMP CORP. Cam Kit - OE+ - 525 Series - Twin Cam 7320
FEULING OIL PUMP CORP.
$1,839.95A complete camchest kit eliminates the guesswork of sourcing individual components by delivering a harmonized system engineered to work together seamlessly. The OE+ 525 Series delivers strong low- and mid-range torque with a linear power curve, making it...09251280- SKU:
- 09251280
- Availability:
- Ships Same Business Day
- Weight:
- 13.51 LBS
- GRIND:
- 525 SERIES
- INTAKE LIFT IMPERIAL:
- 0.525'
- INTAKE LOBE CENTERLINE IMPERIAL:
- 109°
- EXHAUST CLOSE IMPERIAL:
- 5°
- EXHAUST DURATION IMPERIAL:
- 236°
- EXHAUST LIFT IMPERIAL:
- 0.535'
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 113°
- INTAKE CLOSE IMPERIAL:
- 42°
- INTAKE DURATION IMPERIAL:
- 226°
- MODEL:
- OE+
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
- EXHAUST OPEN IMPERIAL:
- 51°
- TYPE:
- CHAIN
- INTAKE OPEN IMPERIAL:
- 4°
- RIDING STYLE:
- STREET
$1,839.95 -
PC RACING Oil Filter - Stainless Steel PC53-82
PC RACING
$69.95Paper and brass filters compromise engine protection when they can't handle cold starts or extreme heat—your bypass valve opens, and unfiltered oil reaches critical components. The PC Racing Oil Filter eliminates this risk with medical-grade stainless...07120459- SKU:
- 07120459
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- FEATURES:
- REUSABLE
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- STAINLESS STEEL
- MATERIAL:
- STAINLESS STEEL
- MICRON RATING:
- 35 MICRONS
- UNITS:
- EACH
- MODEL:
- FLO
- BASE FINISH:
- POLISHED
- FILTER MEDIA MATERIAL:
- MICRONIC FILTER CLOTH
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- DROP-IN
$69.95 -
PINGEL Oil Pump Screens - Twin Cam 62169
PINGEL
$46.95Debris from a failing chain-tensioner or loose particles inside your Twin Cam engine can destroy your oil pump and cam plate—a costly failure that sidelines your bike. The PINGEL Oil Pump Screens act as a critical safeguard, capturing contaminants before...09320073- SKU:
- 09320073
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- SCREEN
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- UNITS:
- KIT
$46.95Qty in Cart: 0Quantity:Price:$46.95Subtotal: -
COLONY Oil Plug Cadmium Big Twin 9645-2
COLONY
$6.95Proper oil system maintenance is non-negotiable for Big Twin engines—especially when you're pushing performance limits. The COLONY Oil Plug Cadmium Big Twin 9645-2 delivers reliable sealing and durability where it matters most, preventing costly oil...09320057- SKU:
- 09320057
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- COLOR/FINISH:
- CADMIUM
- RIDING STYLE:
- STREET
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- PLUG
- TYPE:
- OIL PUMP
- UNITS:
- EACH
$6.95 -
COLONY Oil Plug Chrome Big Twin 9644-2
COLONY
$10.95A quality oil plug is a foundational component that prevents costly leaks and maintains proper engine sealing under pressure and temperature cycling. The COLONY Oil Plug Chrome Big Twin is engineered for Harley-Davidson Big Twin applications, delivering...09320056- SKU:
- 09320056
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- PLUG
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$10.95 -
COLONY Oil Plug Chrome Big Twin 9876-2
COLONY
$10.95A quality oil plug is a critical maintenance component that directly impacts engine longevity and reliability. The COLONY Oil Plug Chrome Big Twin 9876-2 delivers a durable, corrosion-resistant solution that withstands repeated drain cycles and thermal...09320050- SKU:
- 09320050
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- PLUG
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- TYPE:
- OIL PUMP
- UNITS:
- EACH
$10.95 -
KIBBLEWHITE Wrist Pin Bushing 20-20812
KIBBLEWHITE
$7.86A wrist pin bushing is a critical wear component in high-RPM engines, and choosing the right material directly impacts piston longevity and reliability. The KIBBLEWHITE 20-20812 uses SAE660 bearing bronze—a proven material that handles repeated stress...09230368- SKU:
- 09230368
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- WRIST PIN
- UNITS:
- EACH
- MATERIAL:
- BRONZE
- STYLE:
- OVERSIZE
$7.86 -
KIBBLEWHITE Wrist Pin Bushing 20-0645
KIBBLEWHITE
$29.77A wrist pin bushing is the critical bearing surface that allows your connecting rod to articulate smoothly around the piston pin during combustion cycles. Inadequate bushing material leads to excessive wear, increased friction, and potential catastrophic...09230468- SKU:
- 09230468
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- EACH
- MATERIAL:
- BRONZE
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- TYPE:
- WRIST PIN
$29.77Qty in Cart: 0Quantity:Price:$29.77Subtotal: -
KIBBLEWHITE Wrist Pin Bushing - Twin Cam 20-20790
KIBBLEWHITE
$16.50A wrist pin bushing is critical for controlling piston pin clearance and reducing friction in your engine's reciprocating assembly. KIBBLEWHITE's SAE660 bearing bronze construction delivers superior wear resistance and durability compared to inferior...09230354- SKU:
- 09230354
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- BRONZE
- STYLE:
- STANDARD
- RIDING STYLE:
- STREET
- TYPE:
- WRIST PIN
- UNITS:
- EACH
- PRODUCT NAME:
- BUSHING
$16.50 -
KIBBLEWHITE VALVE EXHAUST 1.575" 20-20776
KIBBLEWHITE
$31.01If you're running Twin Cam heads with 7.0mm valves and suspect port-end cracking in the valve guide boss, this Kibblewhite exhaust valve offers a direct solution. The .005" oversize stem re-establishes proper valve stem-to-guide clearance without...09262719- SKU:
- 09262719
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- APPLICATION:
- EXHAUST
- BASE COLOR:
- BLACK
- HEAD DIAMETER IMPERIAL:
- 1.575'
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2805'
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 4.510'
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 23°
- COLOR/FINISH:
- BLACK
$31.01
