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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KIBBLEWHITE Valve Seals 71002-4
KIBBLEWHITE
$11.94Valve seal degradation is one of the most common culprits behind oil consumption and performance loss in high-revving engines. The KIBBLEWHITE 71002-4 valve seals are engineered to maintain a reliable barrier between your valve guides and the atmosphere,...09260792- SKU:
- 09260792
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MATERIAL:
- PTFE
- TYPE:
- VALVE
$11.94 -
KIBBLEWHITE Valve Spring Kit - XL 20-2210
KIBBLEWHITE
$142.97Valve spring degradation is one of the most common causes of lost compression and cylinder head failure—especially under high RPM conditions. The KIBBLEWHITE Valve Spring Kit XL 20-2210 delivers OE-style reliability with upgraded materials designed to...09260799- SKU:
- 09260799
- Availability:
- Ships Same Business Day
- Weight:
- 0.84 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- TYPE:
- VALVE
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPRING KIT
- SPRING OPEN PRESSURE:
- 342 LB
- SPRING SEAT PRESSURE:
- 157 LB
- UNITS:
- KIT
- COLLAR MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.480'
$142.97 -
KIBBLEWHITE Valve Spring Kit - Big Twin 20-2110
KIBBLEWHITE
$147.47Valve springs are the unsung workhorses of your engine's valvetrain—worn or inadequate springs lead to valve float, loss of power, and potential catastrophic engine damage. The KIBBLEWHITE Valve Spring Kit delivers OE-style reliability with...09260800- SKU:
- 09260800
- Availability:
- Ships Same Business Day
- Weight:
- 1.07 LBS
- SPRING OPEN PRESSURE:
- 385 LB
- SPRING SEAT PRESSURE:
- 150 LB
- MATERIAL:
- STEEL
- TYPE:
- VALVE
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- SPRING LIFT IMPERIAL:
- 0.600'
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- COLLAR MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SPRING KIT
$147.47 -
KIBBLEWHITE Valve Spring Kit - Big Twin 20-20132
KIBBLEWHITE
$148.02If you're building a high-lift cam setup on your Big Twin, valve spring performance directly determines whether your engine will survive extended rpm runs or fail catastrophically. The KIBBLEWHITE 20-20132 kit handles the extreme demands of 0.600"...09260802- SKU:
- 09260802
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
- SPRING LIFT IMPERIAL:
- 0.600'
- UNITS:
- KIT
- MATERIAL:
- STEEL
- SPRING LIFT:
- 0,600'
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- COLLAR MATERIAL:
- STEEL
- SPRING OPEN PRESSURE:
- 361 LB
- SPRING SEAT PRESSURE:
- 163 LB
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SPRING KIT
- RIDING STYLE:
- STREET
$148.02 -
KIBBLEWHITE VALVE SPRINGS 66-84 SHOVELHEAD 20-2000
KIBBLEWHITE
$64.50Stock valve springs on your 66-84 Shovelhead eventually lose their pressure and compliance, leading to valve float, inconsistent ignition timing, and power loss across the RPM band. Kibblewhite's dual chrome-silicon springs maintain precise seat pressure...09260806- SKU:
- 09260806
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- CHROME-SILICON
- TYPE:
- VALVE
- UNITS:
- SET OF 4
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- SPRING LIFT IMPERIAL:
- 0.600'
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT:
- 0,600'
- SPRING OPEN PRESSURE:
- 387 LB
- SPRING SEAT PRESSURE:
- 152 LB
$64.50 -
KIBBLEWHITE Valve Springs - XL 20-2215
KIBBLEWHITE
$51.22Valve spring performance directly impacts your engine's ability to maintain precise valve timing under high RPM loads. The KIBBLEWHITE XL 20-2215 delivers OEM-style reliability with the durability required for sustained track use or high-performance...09260807- SKU:
- 09260807
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- CHROME-SILICON
- SPRING SEAT PRESSURE:
- 95 LB
- TYPE:
- VALVE
- UNITS:
- SET OF 4
- PRODUCT NAME:
- SPRING KIT
- SPRING LIFT:
- 0,400'
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- STREET
- SPRING LIFT IMPERIAL:
- 0.400'
- SPRING OPEN PRESSURE:
- 325 LB
$51.22 -
KIBBLEWHITE Exhaust Valve - Evolution 20-4170R
KIBBLEWHITE
$26.62Exhaust valves endure extreme thermal and mechanical stress—factory units fail prematurely under high RPM and boost conditions. The KIBBLEWHITE Evolution 20-4170R eliminates this weakness with a nitrided stainless-steel construction that outlasts hard...09260127- SKU:
- 09260127
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- APPLICATION:
- EXHAUST
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 4.525'
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.3096'
- HEAD DIAMETER IMPERIAL:
- 1.630'
- TULIP ANGLE:
- 40°
$26.62 -
KIBBLEWHITE Valve Seals - Evolution 71008-4
KIBBLEWHITE
$11.94Valve seal degradation is one of the most common sources of oil consumption and compression loss in high-performance engines. KIBBLEWHITE Evolution Valve Seals are engineered to maintain a reliable seal under extreme operating conditions—whether you're...09260327- SKU:
- 09260327
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- PTFE
- TYPE:
- VALVE
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
$11.94 -
KIBBLEWHITE Intake Valve - 1200 XL 20-2013
KIBBLEWHITE
$31.01If you're running a 1200 XL and want intake valves that won't compromise on durability or flow, Kibblewhite delivers precision engineering that outlasts standard components. The nitrided, stellite-tipped design resists wear and corrosion far better than...09260328- SKU:
- 09260328
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- LENGTH IMPERIAL:
- 4.480'
- STEM DIAMETER IMPERIAL:
- 0.3100'
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- HEAD DIAMETER IMPERIAL:
- 1.710'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 23°
$31.01 -
KIBBLEWHITE Exhaust Valve - 1200 XL 20-2014
KIBBLEWHITE
$31.01Exhaust valves are a critical wear item in high-mileage engines, and inferior valves lead to burnt seats, poor sealing, and lost compression. The KIBBLEWHITE Exhaust Valve for 1200 XL models combines precision engineering with a proprietary nitriding...09260329- SKU:
- 09260329
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- HEAD DIAMETER IMPERIAL:
- 1.475'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- LENGTH IMPERIAL:
- 4.560'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 40°
- STEM DIAMETER IMPERIAL:
- 0.3095'
$31.01 -
KIBBLEWHITE Intake Valve - Twin Cam 20-20055
KIBBLEWHITE
$29.81Stock intake valves struggle with heat dissipation and accelerated wear in high-performance engines—especially under forced induction or extended racing conditions. The KIBBLEWHITE Twin Cam 20-20055 addresses this with a purpose-built design that...09260330- SKU:
- 09260330
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- STEM DIAMETER IMPERIAL:
- 0.3106'
- HEAD DIAMETER IMPERIAL:
- 1.840'
- LENGTH IMPERIAL:
- 4.445'
- TULIP ANGLE:
- 23°
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
$29.81 -
KIBBLEWHITE Exhaust Valve - Twin Cam 20-20057
KIBBLEWHITE
$29.81If you're running a high-revving Twin Cam engine, valve durability under extreme conditions isn't negotiable. The KIBBLEWHITE Exhaust Valve delivers superior wear resistance and heat dissipation through a proprietary nitriding process that outperforms...09260331- SKU:
- 09260331
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- LENGTH IMPERIAL:
- 4.505'
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 0.3095'
- UNITS:
- EACH
- HEAD DIAMETER IMPERIAL:
- 1.565'
- TULIP ANGLE:
- 17°
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
$29.81 -
KIBBLEWHITE Cast Iron Valve Guide 20-4095C
KIBBLEWHITE
$9.67Valve guides are critical to maintaining proper valve alignment and preventing wear in high-performance engines. This KIBBLEWHITE cast iron guide delivers the precision fit and durability required for consistent combustion efficiency and extended engine...09262793- SKU:
- 09262793
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.3755'
- OUTSIDE DIAMETER IMPERIAL:
- 0.6440'
- PRODUCT NAME:
- VALVE GUIDE
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
$9.67 -
KIBBLEWHITE Cast Iron Valve Guide 20-4096C
KIBBLEWHITE
$9.67Valve guides are critical to engine longevity and performance—they control oil consumption, prevent valve stem wear, and maintain proper sealing under extreme temperatures and RPM cycles. The KIBBLEWHITE Cast Iron Valve Guide 20-4096C is a...09262794- SKU:
- 09262794
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.3755'
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
- OUTSIDE DIAMETER IMPERIAL:
- 0.6440'
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
$9.67 -
KIBBLEWHITE Intake Valve - 1200 XL 20-20260
KIBBLEWHITE
$54.10If you're running a 1200 XL and demand reliable intake flow without sacrificing durability, the Kibblewhite intake valve is engineered for the precision you need. The nitrided stainless-steel construction with stellite tips resists wear far better than...09262866- SKU:
- 09262866
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 4.525'
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- HEAD DIAMETER IMPERIAL:
- 1.805'
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 28°
- STEM DIAMETER IMPERIAL:
- 7.00 MM
$54.10 -
KIBBLEWHITE Exhaust Valve - 1200 XL 20-20265
KIBBLEWHITE
$54.10If you're running your 1200 XL hard, valve wear isn't just a maintenance issue—it's a performance killer. Kibblewhite's nitrided stainless-steel exhaust valves deliver superior durability and corrosion resistance compared to standard plating, meaning...09262868- SKU:
- 09262868
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 1.575'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 4.610'
- TULIP ANGLE:
- 34°
- STEM DIAMETER IMPERIAL:
- 7.00 MM
$54.10 -
KIBBLEWHITE Exhaust Valve - 883/1200 XL 20-20555
KIBBLEWHITE
$54.10Valve durability is non-negotiable in high-performance Harley-Davidson engines, and OEM replacements often fall short under sustained racing conditions. The KIBBLEWHITE Exhaust Valve combines precision engineering with a proprietary nitriding process...09262871- SKU:
- 09262871
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- LENGTH IMPERIAL:
- 4.660'
- TULIP ANGLE:
- 40°
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 1.480'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 7.00 MM
- UNITS:
- EACH
$54.10 -
JAMES GASKET Drive Gear Seal - Big Twin 12077
JAMES GASKET
$19.90A failing drive gear shaft seal compromises your entire drivetrain by allowing oil to escape and contaminants to enter, leading to premature wear and catastrophic failure. The JAMES GASKET Drive Gear Seal is precision-engineered to maintain a reliable...09350405- SKU:
- 09350405
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- MAIN DRIVE GEAR
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$19.90 -
JAMES GASKET Solenoid Seal - FL/FLH 60645-65-X
JAMES GASKET
$8.50The JAMES GASKET Solenoid Seal is engineered to prevent oil seepage and maintain pressure integrity in your FL/FLH transmission solenoid assembly. A failing seal here doesn't just cause messy leaks—it compromises shift quality and can lead to expensive...09350242- SKU:
- 09350242
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- APPLICATION:
- INNER PRIMARY
- PRODUCT NAME:
- X-RING
- TYPE:
- QUAD SEAL
- APPLICATION:
- SOLENOID
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$8.50 -
JAMES GASKET Fuel Filter O-Ring 11351
JAMES GASKET
$21.50A compromised fuel filter O-ring is a silent threat to engine reliability—allowing fuel contamination and pressure loss that can damage injectors and compromise performance. The JAMES GASKET Fuel Filter O-ring 11351 restores a proper seal in your fuel...09350245- SKU:
- 09350245
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- TYPE:
- FUEL PUMP
- UNITS:
- 25 PACK
- APPLICATION:
- FUEL FILTER
$21.50
