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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THRASHIN SUPPLY CO. Point Cover - Polished - M8 TSC-3027-2
THRASHIN SUPPLY CO.
$59.95Aircraft Grade 6061 Aluminum, Stainless hardware included, Made in the U.S.A., Black is Hard Anodized, Polish is Hand Polished09401847- SKU:
- 09401847
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- POLISHED
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- TYPE:
- POINT
$59.95 -
THRASHIN SUPPLY CO. Point Cover - Black - M8 TSC-3027-4
THRASHIN SUPPLY CO.
$59.95Aircraft Grade 6061 Aluminum, Stainless hardware included, Made in the U.S.A., Black is Hard Anodized, Polish is Hand Polished09401846- SKU:
- 09401846
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- TYPE:
- POINT
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
$59.95 -
KIBBLEWHITE Valve Seat 10-HC542
KIBBLEWHITE
$14.47Copper-based material designed specifically for use with titanium valves in high performance applications, Give the seat excellent thermal characteristics as well as resistance to corrosion and wear, These seats are the result of a two year KPMI R&D...09263366- SKU:
- 09263366
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- INSIDE DIAMETER IMPERIAL:
- 1.750'
- OUTSIDE DIAMETER IMPERIAL:
- 2.135'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE SEAT
$14.47Qty in Cart: 0Quantity:Price:$14.47Subtotal: -
KIBBLEWHITE Valve Seat 10-HC549
KIBBLEWHITE
$14.47Copper-based material designed specifically for use with titanium valves in high performance applications, Give the seat excellent thermal characteristics as well as resistance to corrosion and wear, These seats are the result of a two year KPMI R&D...09263367- SKU:
- 09263367
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- OUTSIDE DIAMETER IMPERIAL:
- 2.068'
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE SEAT
- INSIDE DIAMETER IMPERIAL:
- 1.750'
- UNITS:
- EACH
$14.47 -
KIBBLEWHITE Valve Spring Kit 20-20450
KIBBLEWHITE
$142.97OE style replacement kit, Features dual super clean chrome silicon springs; heat-treated steel base washers, .415" lift, Includes steel retainers, Made in the U.S.A.09262926- SKU:
- 09262926
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- SPRING OPEN PRESSURE:
- 385 LB
- UNITS:
- KIT
- MATERIAL:
- STEEL
- SPRING SEAT PRESSURE:
- 150 LB
- TYPE:
- VALVE
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING
- APPLICATION:
- INTAKE
- COLLAR MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- SPRING LIFT IMPERIAL:
- 0.600'
$142.97 -
KIBBLEWHITE Valve Spring Kit 20-20850
KIBBLEWHITE
$129.79OE style replacement kit, Features dual super clean chrome silicon springs; heat-treated steel base washers, .415" lift, Includes steel retainers, Made in the U.S.A.09262927- SKU:
- 09262927
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- RIDING STYLE:
- STREET
- SPRING SEAT PRESSURE:
- 129 LB
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING
- SPRING LIFT IMPERIAL:
- 0.415'
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- TYPE:
- VALVE
- UNITS:
- KIT
- COLLAR MATERIAL:
- STEEL
- SPRING OPEN PRESSURE:
- 272 LB
$129.79 -
KIBBLEWHITE Valve Collar - Big Twin 20-20855
KIBBLEWHITE
$34.80Made of heat-treated steel, Lower collar is counter bored to allow for greater retainer-to-seal clearance, Made in the U.S.A.09262928- SKU:
- 09262928
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLLAR MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- SPRING SEAT PRESSURE:
- 129 LB
- UNITS:
- 4 PACK
- PRODUCT NAME:
- COLLAR
- SPRING OPEN PRESSURE:
- 272 LB
- TYPE:
- VALVE SPRING
- SPRING LIFT:
- 0,415'
- SPRING LIFT IMPERIAL:
- 0.415'
$34.80 -
KIBBLEWHITE Valve Spring Kit 20-21100
KIBBLEWHITE
$147.66OE style replacement kit, Features dual super clean chrome silicon springs; heat-treated steel base washers, .415" lift, Includes steel retainers, Made in the U.S.A.09262929- SKU:
- 09262929
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- COLLAR MATERIAL:
- ALUMINUM
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING
- SPRING OPEN PRESSURE:
- 387 LB
- SPRING SEAT PRESSURE:
- 152 LB
- TYPE:
- VALVE
- SPRING LIFT IMPERIAL:
- 0.600'
- UNITS:
- KIT
- APPLICATION:
- INTAKE
$147.66 -
KIBBLEWHITE Valve Spring Kit 20-21150
KIBBLEWHITE
$142.97OE style replacement kit, Features dual super clean chrome silicon springs; heat-treated steel base washers, .415" lift, Includes steel retainers, Made in the U.S.A.09262930- SKU:
- 09262930
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- APPLICATION:
- INTAKE
- UNITS:
- KIT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING
- TYPE:
- VALVE
- COLLAR MATERIAL:
- STEEL
- SPRING OPEN PRESSURE:
- 387 LB
- SPRING SEAT PRESSURE:
- 152 LB
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- SPRING LIFT IMPERIAL:
- 0.600'
$142.97 -
KIBBLEWHITE Intake Valve 20-21009H
KIBBLEWHITE
$31.01One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce friction, This process provides resistance to corrosion; wears superior to hard...09262952- SKU:
- 09262952
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- STEM DIAMETER IMPERIAL:
- 0.2347'
- LENGTH IMPERIAL:
- 4.055'
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER IMPERIAL:
- 1.630'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 10°
$31.01 -
KIBBLEWHITE Intake Valve 20-21019
KIBBLEWHITE
$54.10One-piece stainless-steel, stellite-tipped valves impregnated by a special nitrided process with .002" depth and .0002" surface buildup to improve wear properties and reduce friction, This process provides resistance to corrosion; wears superior to hard...09262954- SKU:
- 09262954
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- LENGTH IMPERIAL:
- 5.200'
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 10°
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- HEAD DIAMETER IMPERIAL:
- 1.732'
- STEM DIAMETER IMPERIAL:
- 0.2342'
$54.10 -
KIBBLEWHITE Intake Valve Guide 20-21020
KIBBLEWHITE
$26.89Precision-machined from C630, Compatible with no-lead fuel and accept any type of valve-stem material, Provide maximum service with chromed valve stems, Feature a tapered nose design for maximum bearing service and minimal port obstruction; improves flow...09262955- SKU:
- 09262955
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- BROWN
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- BRONZE
- INSIDE DIAMETER IMPERIAL:
- 0.2347'
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- STANDARD
- OUTSIDE DIAMETER IMPERIAL:
- 0.4750'
$26.89 -
KIBBLEWHITE Valve Kit - Evolution/1200 20-22800
KIBBLEWHITE
$117.85Full set of Black Diamond™ stainless steel standard size valves for engine applications listed, All valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”, This process improves wear properties, reduces...09263213- SKU:
- 09263213
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$117.85 -
KIBBLEWHITE Complete Valve Kit - Evolution/1200 20-22850
KIBBLEWHITE
$251.29Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves, H.T. Steel valve keepers and valve stem seals (where applicable) for engine applications listed, All valves are impregnated by a special...09263214- SKU:
- 09263214
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- SPRING SEAT PRESSURE:
- 163 LB
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- ENGINE KIT
- SPRING OPEN PRESSURE:
- 361 LB
- RIDING STYLE:
- STREET
- SPRING LIFT:
- 0,600'
- MODEL:
- BLACK DIAMOND™
- SPRING LIFT IMPERIAL:
- 0.600'
$251.29 -
KIBBLEWHITE Valve Kit - Evolution/1200 20-22900
KIBBLEWHITE
$205.56Full set of Black Diamond™ stainless steel standard size valves for engine applications listed, All valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”, This process improves wear properties, reduces...09263215- SKU:
- 09263215
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- VALVE KIT
- UNITS:
- KIT
$205.56 -
KIBBLEWHITE Complete Valve Kit - Evolution/1200 20-22950
KIBBLEWHITE
$315.46Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves, H.T. Steel valve keepers and valve stem seals (where applicable) for engine applications listed, All valves are impregnated by a special...09263216- SKU:
- 09263216
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- SPRING SEAT PRESSURE:
- 175 LB
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT IMPERIAL:
- 0.610'
- SPRING LIFT:
- 0,610'
- SPRING OPEN PRESSURE:
- 400 LB
- UNITS:
- KIT
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
$315.46 -
KIBBLEWHITE Valve Kit - Twin Cam 20-23000
KIBBLEWHITE
$113.28Full set of Black Diamond™ stainless steel standard size valves for engine applications listed, All valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”, This process improves wear properties, reduces...09263217- SKU:
- 09263217
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE KIT
$113.28 -
KIBBLEWHITE Complete Valve Kit - Twin Cam 20-23050
KIBBLEWHITE
$246.98Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves, H.T. Steel valve keepers and valve stem seals (where applicable) for engine applications listed, All valves are impregnated by a special...09263218- SKU:
- 09263218
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MODEL:
- BLACK DIAMOND™
- SPRING SEAT PRESSURE:
- 163 LB
- MATERIAL:
- STAINLESS STEEL
- SPRING LIFT:
- 0,600'
- PRODUCT NAME:
- ENGINE KIT
- SPRING LIFT IMPERIAL:
- 0.600'
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 361 LB
$246.98 -
KIBBLEWHITE BUSHINGS ROCKER ARM 20-2106
KIBBLEWHITE
$33.85Constructed of SAE660 bearing bronze, Made in the U.S.A.09270024- SKU:
- 09270024
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- 8 PACK
- MATERIAL:
- C932 BRONZE
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER ARM
$33.85 -
KIBBLEWHITE Intake Valve 20-21060H
KIBBLEWHITE
$31.01White Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751, Electroplated with a 360º anode, to produce an even coat of the highest grade hard chrome finish, Made in the U.S.A.09263343- SKU:
- 09263343
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- STAINLESS STEEL
- SIZE METRIC:
- OVERSIZE (+1.00 MM)
- UNITS:
- EACH
- HEAD DIAMETER IMPERIAL:
- 1.614'
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.2347'
- LENGTH IMPERIAL:
- 4.035'
- MODEL:
- WHITE DIAMOND™
- TULIP ANGLE:
- 15°
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
$31.01
