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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On Sale
KIBBLEWHITE Valve Kit - Sportster 20-22300
KIBBLEWHITE
MSRP: $175.79Now: $128.43Was: $175.79Valve degradation is one of the fastest ways to lose performance and reliability in your Sportster engine. The KIBBLEWHITE Valve Kit equips your engine with Black Diamond™ stainless steel valves...09263207- SKU:
- 09263207
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- VALVE KIT
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
MSRP: $175.79Now: $128.43Was: $175.79 -
On Sale
KIBBLEWHITE Complete Valve Kit 20-22350
KIBBLEWHITE
MSRP: $298.45Now: $223.19Was: $298.45A complete valve kit built for reliability and longevity, the KIBBLEWHITE 20-22350 handles the critical components that directly impact combustion efficiency and engine durability. This is the smart...09263208- SKU:
- 09263208
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT IMPERIAL:
- 0.400'
- SPRING SEAT PRESSURE:
- 95 LB
- UNITS:
- KIT
- SPRING OPEN PRESSURE:
- 325 LB
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,400'
MSRP: $298.45Now: $223.19Was: $298.45 -
On Sale
KIBBLEWHITE Complete Valve Kit - Evolution 20-22650
KIBBLEWHITE
MSRP: $264.26Now: $222.28Was: $264.26A complete valve kit engineered for reliability and longevity, the KIBBLEWHITE Evolution 20-22650 addresses the critical wear points in your engine's valvetrain. Valve degradation leads to...09263210- SKU:
- 09263210
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 361 LB
- SPRING LIFT IMPERIAL:
- 0.600'
- UNITS:
- KIT
- MODEL:
- BLACK DIAMOND™
- SPRING SEAT PRESSURE:
- 163 LB
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT:
- 0,600'
MSRP: $264.26Now: $222.28Was: $264.26 -
On Sale
KIBBLEWHITE Valve Kit - Evolution/883 20-22700
KIBBLEWHITE
MSRP: $142.70Now: $128.43Was: $142.70Valve degradation is one of the fastest ways to lose compression and performance in your Evolution or 883 engine. The KIBBLEWHITE Valve Kit delivers Black Diamond™ stainless steel valves engineered...09263211- SKU:
- 09263211
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- UNITS:
- KIT
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
MSRP: $142.70Now: $128.43Was: $142.70 -
On Sale
KIBBLEWHITE Complete Valve Kit - Evolution/883 20-22750
KIBBLEWHITE
MSRP: $294.08Now: $247.36Was: $294.08Factory valve kits deteriorate from heat cycling and fuel exposure, leading to reduced compression and power loss over time. The KIBBLEWHITE Complete Valve Kit restores your Evolution/883's...09263212- SKU:
- 09263212
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- SPRING SEAT PRESSURE:
- 163 LB
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- ENGINE KIT
- SPRING OPEN PRESSURE:
- 361 LB
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,600'
- SPRING LIFT IMPERIAL:
- 0.600'
MSRP: $294.08Now: $247.36Was: $294.08 -
On Sale
KIBBLEWHITE Exhaust Valve - Standard - M8 20-21016H
KIBBLEWHITE
MSRP: $36.98Now: $29.50Was: $36.98OEM exhaust valves are a wear item that compromises performance as they degrade. Kibblewhite's Black Diamond valves are one-piece forgings engineered to outlast stock components while maintaining...09263306- SKU:
- 09263306
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 1.264'
- LENGTH IMPERIAL:
- 4.050'
- TULIP ANGLE:
- 24°
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2342'
- UNITS:
- EACH
MSRP: $36.98Now: $29.50Was: $36.98 -
On Sale
KIBBLEWHITE Engine Kit - Knucklehead 20-22050
KIBBLEWHITE
MSRP: $251.67Now: $203.09Was: $251.67A Knucklehead engine demands precision valve train components that can withstand extreme combustion pressures and extended service intervals. The KIBBLEWHITE Engine Kit delivers factory-backed...09263308- SKU:
- 09263308
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 270 LB
- SPRING LIFT:
- 0,415'
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING SEAT PRESSURE:
- 127 LB
- UNITS:
- KIT
MSRP: $251.67Now: $203.09Was: $251.67 -
On Sale
KIBBLEWHITE Valve Kit - Panhead 20-22100
KIBBLEWHITE
MSRP: $128.65Now: $106.07Was: $128.65The Kibblewhite Valve Kit ensures reliable, long-term performance in your Panhead engine by combining precision engineering with superior material science. Black Diamond™ stainless steel valves...09263309- SKU:
- 09263309
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- VALVE KIT
MSRP: $128.65Now: $106.07Was: $128.65 -
On Sale
KIBBLEWHITE Engine Kit - Panhead 20-22150
KIBBLEWHITE
MSRP: $263.11Now: $212.22Was: $263.11Your Panhead engine demands valve components engineered to withstand high RPMs and extreme temperatures without sacrificing longevity. The KIBBLEWHITE Engine Kit delivers OEM-quality valve assemblies...09263310- SKU:
- 09263310
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 272 LB
- SPRING SEAT PRESSURE:
- 129 LB
- UNITS:
- KIT
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING LIFT:
- 0,415'
MSRP: $263.11Now: $212.22Was: $263.11 -
On Sale
KIBBLEWHITE Engine Kit - XL 20-22250
KIBBLEWHITE
MSRP: $247.99Now: $223.19Was: $247.99A complete valve train refresh is essential for maintaining peak engine performance and reliability, especially in high-demand racing and performance applications. The KIBBLEWHITE Engine Kit delivers...09263312- SKU:
- 09263312
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- SPRING LIFT:
- 0,400'
- SPRING OPEN PRESSURE:
- 325 LB
- RIDING STYLE:
- STREET
- SPRING LIFT IMPERIAL:
- 0.400'
- UNITS:
- KIT
- PRODUCT NAME:
- ENGINE KIT
- SPRING SEAT PRESSURE:
- 95 LB
MSRP: $247.99Now: $223.19Was: $247.99 -
On Sale
KIBBLEWHITE Valve Kit 20-22400
KIBBLEWHITE
MSRP: $126.26Now: $106.07Was: $126.26Valve wear and friction are silent killers of engine reliability and performance. The KIBBLEWHITE 20-22400 Valve Kit addresses both with Black Diamond™ stainless steel construction and a proprietary...09263313- SKU:
- 09263313
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- UNITS:
- KIT
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
MSRP: $126.26Now: $106.07Was: $126.26 -
On Sale
KIBBLEWHITE Engine Kit 20-22450
KIBBLEWHITE
MSRP: $260.71Now: $212.22Was: $260.71A complete valve train refresh demands precision components engineered to withstand extreme combustion pressures and repeated high-RPM cycles. The KIBBLEWHITE Engine Kit 20-22450 delivers a...09263314- SKU:
- 09263314
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- SPRING LIFT:
- 0,415'
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING OPEN PRESSURE:
- 272 LB
- SPRING SEAT PRESSURE:
- 129 LB
MSRP: $260.71Now: $212.22Was: $260.71 -
On Sale
KIBBLEWHITE Valve Kit 20-22500
KIBBLEWHITE
MSRP: $126.26Now: $106.07Was: $126.26Valve wear and friction directly impact engine reliability and performance—especially under sustained high RPM operation. The Kibblewhite 20-22500 Valve Kit addresses this with Black Diamond™...09263315- SKU:
- 09263315
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PRODUCT NAME:
- VALVE KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
MSRP: $126.26Now: $106.07Was: $126.26 -
On Sale
KIBBLEWHITE Engine Kit 20-22550
KIBBLEWHITE
MSRP: $260.71Now: $212.22Was: $260.71The KIBBLEWHITE Engine Kit 20-22550 gives you a complete valve train refresh with OEM-quality components engineered for longevity and reliable performance. Whether you're rebuilding after...09263316- SKU:
- 09263316
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING LIFT:
- 0,415'
- RIDING STYLE:
- STREET
- SPRING SEAT PRESSURE:
- 129 LB
- SPRING OPEN PRESSURE:
- 272 LB
- UNITS:
- KIT
MSRP: $260.71Now: $212.22Was: $260.71 -
On Sale
KIBBLEWHITE Wrist Pin Bushing 20-20580
KIBBLEWHITE
MSRP: $7.86Now: $7.07Was: $7.86A wrist pin bushing is critical to connecting rod reliability—it absorbs the lateral forces generated during combustion and reduces wear on your connecting rod bore. The KIBBLEWHITE 20-20580 uses...09220104- SKU:
- 09220104
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- WRIST PIN
- MATERIAL:
- BRONZE
- STYLE:
- STANDARD
- UNITS:
- EACH
MSRP: $7.86Now: $7.07Was: $7.86 -
On Sale
KIBBLEWHITE Wrist Pin Bushing 20-20582
KIBBLEWHITE
MSRP: $7.86Now: $7.07Was: $7.86A wrist pin bushing is the critical interface between your connecting rod and piston pin—tolerances here directly impact engine reliability and longevity. The KIBBLEWHITE 20-20582 uses SAE660 bearing...09220105- SKU:
- 09220105
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- WRIST PIN
- UNITS:
- EACH
- STYLE:
- OVERSIZE
- MATERIAL:
- BRONZE
MSRP: $7.86Now: $7.07Was: $7.86 -
On Sale
KIBBLEWHITE Wrist Pin Bushing 20-20810
KIBBLEWHITE
MSRP: $7.86Now: $7.07Was: $7.86A wrist pin bushing is a critical precision component that manages the oscillating loads between your connecting rod and piston pin. The KIBBLEWHITE 20-20810 is engineered to minimize friction and...09230367- SKU:
- 09230367
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- MATERIAL:
- BRONZE
- TYPE:
- WRIST PIN
- UNITS:
- EACH
MSRP: $7.86Now: $7.07Was: $7.86 -
On Sale
KIBBLEWHITE Valve Guide 20-4321C
KIBBLEWHITE
MSRP: $9.71Now: $8.86Was: $9.71Valve guides are critical to engine longevity—they control oil consumption, maintain proper valve alignment, and prevent catastrophic wear in the cylinder head. The KIBBLEWHITE 20-4321C delivers...DS199760- SKU:
- DS199760
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
- SIZE IMPERIAL:
- OVERSIZE (+0.001')
- INSIDE DIAMETER IMPERIAL:
- 0.3090'
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- OUTSIDE DIAMETER IMPERIAL:
- 0.5630'
MSRP: $9.71Now: $8.86Was: $9.71 -
On Sale
KIBBLEWHITE Cylinder Studs - Evolution 20-2098
KIBBLEWHITE
MSRP: $187.44Now: $169.16Was: $187.44Cylinder stud failure can cost you a race, a season, or worse—your engine. KIBBLEWHITE's Evolution 20-2098 studs eliminate the weak points found in standard fasteners through precision manufacturing...DS199771- SKU:
- DS199771
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
MSRP: $187.44Now: $169.16Was: $187.44 -
On Sale
KIBBLEWHITE Exhaust Valve 20-4195
KIBBLEWHITE
MSRP: $35.22Now: $27.91Was: $35.22If you're running a high-revving engine that demands precision valve action, the KIBBLEWHITE 20-4195 exhaust valve delivers the durability and flow efficiency needed to maximize combustion and...DS198970- SKU:
- DS198970
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.3760'
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 3.810'
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 1.750'
- MODEL:
- BLACK DIAMOND™
- TULIP ANGLE:
- 29°
MSRP: $35.22Now: $27.91Was: $35.22
