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
-
On Sale
KIBBLEWHITE Intake Valve 20-20915
KIBBLEWHITE
MSRP: $48.58Now: $37.01Was: $48.58If you're building a high-revving engine that demands reliability and precision, valve wear and friction are silent killers of performance and longevity. The KIBBLEWHITE 20-20915 intake valve...09262946- SKU:
- 09262946
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- STEM DIAMETER IMPERIAL:
- 0.3108'
- TULIP ANGLE:
- 25°
- LENGTH IMPERIAL:
- 4.440'
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER IMPERIAL:
- 1.900'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
MSRP: $48.58Now: $37.01Was: $48.58 -
On Sale
KIBBLEWHITE Exhaust Valve 20-20920
KIBBLEWHITE
MSRP: $48.58Now: $37.01Was: $48.58If you're running a high-revving engine that demands reliability and durability, valve wear will eventually limit your performance and engine life. The KIBBLEWHITE 20-20920 exhaust valve combines...09262947- SKU:
- 09262947
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- HEAD DIAMETER IMPERIAL:
- 1.650'
- STEM DIAMETER IMPERIAL:
- 0.3106'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 4.515'
- TULIP ANGLE:
- 25°
- APPLICATION:
- EXHAUST
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
MSRP: $48.58Now: $37.01Was: $48.58 -
On Sale
KIBBLEWHITE Exhaust Valve 20-20925
KIBBLEWHITE
MSRP: $48.58Now: $37.01Was: $48.58Exhaust valves endure extreme thermal and mechanical stress—factory units wear quickly under high-RPM racing conditions. The KIBBLEWHITE 20-20925 combines stainless-steel construction with a stellite...09262948- SKU:
- 09262948
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- APPLICATION:
- EXHAUST
- LENGTH IMPERIAL:
- 4.510'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- HEAD DIAMETER IMPERIAL:
- 1.610'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- STEM DIAMETER IMPERIAL:
- 0.3106'
- TULIP ANGLE:
- 25°
MSRP: $48.58Now: $37.01Was: $48.58 -
On Sale
KIBBLEWHITE Exhaust Valve 20-20930
KIBBLEWHITE
MSRP: $48.58Now: $37.01Was: $48.58Exhaust valves endure extreme temperatures and constant mechanical stress—factory originals often can't keep up with high-performance demands. The KIBBLEWHITE 20-20930 delivers superior wear...09262949- SKU:
- 09262949
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TULIP ANGLE:
- 25°
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 4.505'
- STEM DIAMETER IMPERIAL:
- 0.3106'
- HEAD DIAMETER IMPERIAL:
- 1.585'
- RIDING STYLE:
- STREET
MSRP: $48.58Now: $37.01Was: $48.58 -
On Sale
KIBBLEWHITE Intake Valve Guide 20-21021
KIBBLEWHITE
MSRP: $26.89Now: $24.20Was: $26.89If you're running a high-revving engine or rebuilding a head for serious performance, valve guide wear directly impacts compression sealing, oil consumption, and overall reliability. The KIBBLEWHITE...09262957- SKU:
- 09262957
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4760'
- PRODUCT NAME:
- VALVE GUIDE
- SIZE IMPERIAL:
- OVERSIZE (+0.001')
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.2347'
- BASE COLOR:
- BROWN
- RIDING STYLE:
- STREET
- MATERIAL:
- C630 BRONZE
MSRP: $26.89Now: $24.20Was: $26.89 -
On Sale
KIBBLEWHITE Intake Valve Guide 20-21022
KIBBLEWHITE
MSRP: $26.89Now: $24.20Was: $26.89Valve guides are critical to engine reliability, and worn guides accelerate valve seat recession, increase oil consumption, and kill your cylinder head's longevity. The KIBBLEWHITE 20-21022 is...09262959- SKU:
- 09262959
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- BRONZE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.2347'
- PRODUCT NAME:
- VALVE GUIDE
- BASE COLOR:
- BROWN
- OUTSIDE DIAMETER IMPERIAL:
- 0.4770'
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- MATERIAL:
- C630 BRONZE
MSRP: $26.89Now: $24.20Was: $26.89 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 20-21030
KIBBLEWHITE
MSRP: $26.89Now: $24.20Was: $26.89When you're rebuilding a high-performance engine, valve guides are critical to maintaining proper valve sealing, reducing oil consumption, and ensuring consistent combustion chamber pressures. The...09262961- SKU:
- 09262961
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- BASE COLOR:
- BROWN
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- STANDARD
- COLOR/FINISH:
- BRONZE
- APPLICATION:
- EXHAUST
- INSIDE DIAMETER IMPERIAL:
- 0.2342'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4750'
MSRP: $26.89Now: $24.20Was: $26.89 -
On Sale
KIBBLEWHITE Exhaust Valve Guide 20-21031
KIBBLEWHITE
MSRP: $26.89Now: $24.20Was: $26.89Valve guides are critical to maintaining proper valve alignment and sealing integrity in high-performance engines. The KIBBLEWHITE 20-21031 is precision-machined from C630 material to withstand...09262963- SKU:
- 09262963
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- COLOR/FINISH:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4760'
- PRODUCT NAME:
- VALVE GUIDE
- SIZE IMPERIAL:
- OVERSIZE (+0.001')
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- BASE COLOR:
- BROWN
- RIDING STYLE:
- STREET
- INSIDE DIAMETER IMPERIAL:
- 0.2342'
- MATERIAL:
- C630 BRONZE
MSRP: $26.89Now: $24.20Was: $26.89 -
On Sale
KIBBLEWHITE Valve Stem Seal 71046-4
KIBBLEWHITE
MSRP: $10.26Now: $9.23Was: $10.26Valve stem seals are critical to preventing oil consumption and maintaining combustion chamber integrity—a worn or failing seal can lead to blue smoke, fouled plugs, and accelerated valve wear. The...09262971- SKU:
- 09262971
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- MATERIAL:
- VITON
- TYPE:
- VALVE STEM
- UNITS:
- 4 PACK
MSRP: $10.26Now: $9.23Was: $10.26 -
On Sale
KIBBLEWHITE Cylinder Head Service Kit 82-83160
KIBBLEWHITE
MSRP: $703.22Now: $632.90Was: $703.22A complete cylinder head refresh demands precision components that can handle sustained high RPM and thermal stress. The KIBBLEWHITE 82-83160 Service Kit eliminates the guesswork by bundling...09263160- SKU:
- 09263160
- Availability:
- Ships Same Business Day
- Weight:
- 2.46 LBS
- MODEL:
- WHITE DIAMOND™
- UNITS:
- KIT
- MATERIAL:
- C630 BRONZE
- PRODUCT NAME:
- CYLINDER HEAD SERVICE KIT
- SPRING LIFT:
- 0,435'
- SPRING OPEN PRESSURE:
- 205 LB
- APPLICATION:
- INTAKE
- SPRING SEAT PRESSURE:
- 80 IB
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- UTV
- SPRING LIFT IMPERIAL:
- 0.435'
MSRP: $703.22Now: $632.90Was: $703.22 -
On Sale
KIBBLEWHITE Spring Kit 80-81400
KIBBLEWHITE
MSRP: $220.26Now: $198.23Was: $220.26Valve spring performance directly impacts engine reliability and rev capability, making quality replacement springs essential for any top-end rebuild. The Kibblewhite Spring Kit 80-81400 delivers...09263161- SKU:
- 09263161
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- MATERIAL:
- TITANIUM
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $220.26Now: $198.23Was: $220.26 -
On Sale
KIBBLEWHITE Intake Valve 80-80912
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $31.01Intake valve performance directly impacts your engine's breathing efficiency and overall power output. The KIBBLEWHITE Black Diamond™ valve delivers measurable gains in flow consistency and...09263162- SKU:
- 09263162
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- HEAD DIAMETER METRIC:
- 31.00 MM
- LENGTH IMPERIAL:
- 3.280'
- MODEL:
- BLACK DIAMOND™
- TULIP ANGLE:
- 18°
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
- STEM DIAMETER IMPERIAL:
- 0.1962'
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Exhaust Valve 80-80916
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $31.01Stock valves wear faster and cost you performance gains over time. The KIBBLEWHITE Black Diamond™ Exhaust Valve delivers measurable improvements in durability, corrosion resistance, and friction...09263163- SKU:
- 09263163
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- TITANIUM
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.1760'
- TULIP ANGLE:
- 30°
- APPLICATION:
- EXHAUST
- LENGTH IMPERIAL:
- 3.235'
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 25.00 MM
- RIDING STYLE:
- OFF-ROAD
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Valve Guide Seal 71015-4
KIBBLEWHITE
MSRP: $13.96Now: $12.56Was: $13.96Valve guide seals are critical to engine longevity—they prevent oil from seeping past the valve stem and into the combustion chamber, which causes blow-by, smoking, and accelerated wear on your rings...09263164- SKU:
- 09263164
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- VITON
- OUTSIDE DIAMETER IMPERIAL:
- 0.405'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- TYPE:
- VALVE GUIDE
- UNITS:
- 4 PACK
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- STEM DIAMETER METRIC:
- 5.00 MM
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- WATERCRAFT
MSRP: $13.96Now: $12.56Was: $13.96 -
On Sale
KIBBLEWHITE Valve Guide Seal 71029-8
KIBBLEWHITE
MSRP: $27.92Now: $25.13Was: $27.92Valve guide seals are critical to engine longevity—they prevent oil from seeping into your combustion chambers, which causes smoking, carbon buildup, and loss of compression. Whether you're...09263165- SKU:
- 09263165
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- OUTSIDE DIAMETER IMPERIAL:
- 0.520'
- STEM DIAMETER METRIC:
- 6.00 MM
- UNITS:
- 8 PACK
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SEAL
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- TYPE:
- VALVE GUIDE
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
MSRP: $27.92Now: $25.13Was: $27.92 -
On Sale
KIBBLEWHITE Spring Kit - .650" - Evolution/Twin Cam 20-21650
KIBBLEWHITE
MSRP: $235.25Now: $197.87Was: $235.25If you're running Evolution or Twin Cam heads, valve wear directly impacts performance, reliability, and your bottom line—especially under high RPM or boost. The KIBBLEWHITE Spring Kit converts your...09263167- SKU:
- 09263167
- Availability:
- Ships Same Business Day
- Weight:
- 1.56 LBS
- APPLICATION:
- EXHAUST
- SPRING OPEN PRESSURE:
- 440 LB
- SPRING LIFT:
- 0,650'
- SPRING LIFT IMPERIAL:
- 0.650'
- SPRING SEAT PRESSURE:
- 185 IB
- UNITS:
- KIT
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- STREET
MSRP: $235.25Now: $197.87Was: $235.25 -
On Sale
KIBBLEWHITE Beehive Spring Kit - .625" - M8 20-21800
KIBBLEWHITE
MSRP: $445.25Now: $374.52Was: $445.25Valve spring performance is non-negotiable in high-RPM applications—inadequate spring rates lead to valve float, lost power, and catastrophic engine damage. The KIBBLEWHITE Beehive Spring Kit...09263276- SKU:
- 09263276
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.625'
- PRODUCT NAME:
- SPRING KIT
- SPRING SEAT PRESSURE:
- 85 LB
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 280 LB
- APPLICATION:
- EXHAUST
- COLLAR MATERIAL:
- TITANIUM
- STYLE:
- OVATE WIRE BEEHIVE
- TYPE:
- VALVE
MSRP: $445.25Now: $374.52Was: $445.25 -
On Sale
KIBBLEWHITE Beehive Spring Kit - .625" - M8 20-21850
KIBBLEWHITE
MSRP: $356.21Now: $299.62Was: $356.21Valve spring performance directly impacts your engine's ability to maintain valve timing and control under high RPM and boost conditions. The KIBBLEWHITE Beehive Spring Kit delivers precise load...09263277- SKU:
- 09263277
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.625'
- APPLICATION:
- EXHAUST
- STYLE:
- OVATE WIRE BEEHIVE
- TYPE:
- VALVE
- COLLAR MATERIAL:
- STEEL
- SPRING SEAT PRESSURE:
- 85 LB
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 280 LB
- UNITS:
- KIT
MSRP: $356.21Now: $299.62Was: $356.21 -
On Sale
KIBBLEWHITE Valve Guide Seal 71010-4
KIBBLEWHITE
MSRP: $7.15Now: $6.44Was: $7.15Valve guide seals are critical to engine health—they prevent oil from entering the combustion chamber while maintaining compression and reducing emissions. The Kibblewhite 71010-4 uses dual Viton®...09263204- SKU:
- 09263204
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 0.412'
- OUTSIDE DIAMETER IMPERIAL:
- 0.5660'
- STEM DIAMETER IMPERIAL:
- 5/16'
- TYPE:
- VALVE
MSRP: $7.15Now: $6.44Was: $7.15 -
On Sale
KIBBLEWHITE Valve Guide Seal 71011-4
KIBBLEWHITE
MSRP: $8.16Now: $7.34Was: $8.16Valve guide seals are critical to controlling oil consumption and maintaining combustion chamber cleanliness—neglect them, and you're looking at blow-by, smoke, and accelerated engine wear. The...09263205- SKU:
- 09263205
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- LENGTH IMPERIAL:
- 0.516'
- OUTSIDE DIAMETER IMPERIAL:
- 0.661'
- STEM DIAMETER IMPERIAL:
- 3/8'
- RIDING STYLE:
- STREET
- TYPE:
- VALVE
- MATERIAL:
- VITON
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
MSRP: $8.16Now: $7.34Was: $8.16
