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 - Dish - Polished - Twin Cam TSC-3026-2
THRASHIN SUPPLY CO.
$64.95A polished point cover isn't just cosmetic—it protects your ignition system from moisture and debris while completing a finished engine bay aesthetic. For Twin Cam engines, this THRASHIN SUPPLY CO...09401716- SKU:
- 09401716
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- BILLET ALUMINUM
- TYPE:
- POINT
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$64.95 -
THRASHIN SUPPLY CO. Point Cover - Dish - Black - Twin Cam TSC-3026-4
THRASHIN SUPPLY CO.
$64.95A quality point cover protects your Twin Cam's ignition system from road grime, moisture, and debris while maintaining a clean, finished appearance in the engine bay. The Thrashin Supply Co. dish...09401717- SKU:
- 09401717
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- BILLET ALUMINUM
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- TYPE:
- POINT
$64.95 -
THRASHIN SUPPLY CO. Point Cover - Polished - M8 TSC-3027-2
THRASHIN SUPPLY CO.
$64.95A clean, professional engine bay starts with quality details—and your ignition system deserves better than a worn-out cover. The THRASHIN SUPPLY CO. Point Cover combines hand-polished aesthetics with...09401847- 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
$64.95 -
THRASHIN SUPPLY CO. Point Cover - Black - M8 TSC-3027-4
THRASHIN SUPPLY CO.
$64.95A quality point cover protects your M8's ignition system from road debris, moisture, and contamination while maintaining the clean aesthetic your bike deserves. This THRASHIN SUPPLY CO. cover...09401846- 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
$64.95 -
On Sale
KIBBLEWHITE Valve Seat 10-HC542
KIBBLEWHITE
MSRP: $14.47Now: $13.02Was: $14.47High-performance titanium valves demand a seat material engineered to match their demands—standard iron seats simply can't handle the thermal stress and wear cycles. The KIBBLEWHITE 10-HC542...09263366- SKU:
- 09263366
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- INSIDE DIAMETER IMPERIAL:
- 1.750'
- OUTSIDE DIAMETER IMPERIAL:
- 2.135'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE SEAT
MSRP: $14.47Now: $13.02Was: $14.47 -
On Sale
KIBBLEWHITE Valve Seat 10-HC549
KIBBLEWHITE
MSRP: $14.47Now: $13.02Was: $14.47If you're running titanium valves in a high-performance engine, valve seat material matters as much as the valves themselves. The KIBBLEWHITE 10-HC549 is a copper-based seat engineered specifically...09263367- SKU:
- 09263367
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- OUTSIDE DIAMETER IMPERIAL:
- 2.068'
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE SEAT
- INSIDE DIAMETER IMPERIAL:
- 1.750'
- UNITS:
- EACH
MSRP: $14.47Now: $13.02Was: $14.47 -
On Sale
KIBBLEWHITE Valve Spring Kit 20-20450
KIBBLEWHITE
MSRP: $152.98Now: $128.67Was: $152.98Valve spring degradation is one of the most insidious threats to engine reliability—worn springs cause valve float, inconsistent lift, and catastrophic power loss that sneaks up on you between...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'
MSRP: $152.98Now: $128.67Was: $152.98 -
On Sale
KIBBLEWHITE Valve Spring Kit 20-20850
KIBBLEWHITE
MSRP: $138.87Now: $116.81Was: $138.87Valve spring degradation is one of the most common culprits behind performance loss and engine reliability issues—whether you're running a stock rebuild or a modified setup. The KIBBLEWHITE Valve...09262927- SKU:
- 09262927
- Availability:
- Ships Same Business Day
- Weight:
- 1.51 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
MSRP: $138.87Now: $116.81Was: $138.87 -
On Sale
KIBBLEWHITE Valve Collar - Big Twin 20-20855
KIBBLEWHITE
MSRP: $34.80Now: $31.32Was: $34.80Proper valve collar geometry is critical for maintaining valve seal integrity and preventing catastrophic engine failure in high-revving Big Twin applications. The KIBBLEWHITE Valve Collar features a...09262928- SKU:
- 09262928
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 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'
MSRP: $34.80Now: $31.32Was: $34.80 -
On Sale
KIBBLEWHITE Valve Spring Kit 20-21100
KIBBLEWHITE
MSRP: $158.00Now: $132.89Was: $158.00Valve springs are critical to engine reliability—worn or inadequate springs lead to valve float, loss of compression, and catastrophic engine damage at high RPMs. The KIBBLEWHITE 20-21100 kit...09262929- SKU:
- 09262929
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 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
MSRP: $158.00Now: $132.89Was: $158.00 -
On Sale
KIBBLEWHITE Valve Spring Kit 20-21150
KIBBLEWHITE
MSRP: $152.98Now: $128.67Was: $152.98Maintaining factory-correct valve spring performance is critical for reliability and longevity in high-RPM applications. Kibblewhite's OE-style replacement kit restores proper valve control without...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'
MSRP: $152.98Now: $128.67Was: $152.98 -
On Sale
KIBBLEWHITE Intake Valve 20-21009H
KIBBLEWHITE
MSRP: $36.98Now: $29.50Was: $36.98If you're building or rebuilding an engine that demands reliability and longevity, valve wear is one of the first places poor quality shows up. KIBBLEWHITE's intake valves use a proprietary nitriding...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°
MSRP: $36.98Now: $29.50Was: $36.98 -
On Sale
KIBBLEWHITE Intake Valve 20-21019
KIBBLEWHITE
MSRP: $54.10Now: $48.69Was: $54.10If you're building or rebuilding a high-revving engine, valve durability directly impacts your power output and longevity. KIBBLEWHITE's stainless-steel intake valves combine precision engineering...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'
MSRP: $54.10Now: $48.69Was: $54.10 -
On Sale
KIBBLEWHITE Intake Valve Guide 20-21020
KIBBLEWHITE
MSRP: $26.89Now: $24.20Was: $26.89Worn or damaged valve guides compromise cylinder head integrity and flow efficiency, directly impacting combustion quality and engine performance. The KIBBLEWHITE 20-21020 is precision-engineered to...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'
MSRP: $26.89Now: $24.20Was: $26.89 -
On Sale
KIBBLEWHITE Valve Kit - Evolution/1200 20-22800
KIBBLEWHITE
MSRP: $126.26Now: $106.07Was: $126.26Valve wear is one of the fastest paths to engine degradation, especially in high-demand Evolution and 1200cc applications. The KIBBLEWHITE Black Diamond™ valve kit delivers precision-engineered...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
MSRP: $126.26Now: $106.07Was: $126.26 -
On Sale
KIBBLEWHITE Complete Valve Kit - Evolution/1200 20-22850
KIBBLEWHITE
MSRP: $277.30Now: $226.16Was: $277.30A complete valve kit is essential for any Evolution or 1200cc engine rebuild—it ensures you're not mixing worn, mismatched components that compromise compression and reliability. KIBBLEWHITE's Black...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'
MSRP: $277.30Now: $226.16Was: $277.30 -
On Sale
KIBBLEWHITE Valve Kit - Evolution/1200 20-22900
KIBBLEWHITE
MSRP: $205.56Now: $185.00Was: $205.56Valve reliability is non-negotiable in high-performance engines, and the KIBBLEWHITE Valve Kit delivers the durability and precision your Evolution or 1200cc engine demands. The Black Diamond™...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
MSRP: $205.56Now: $185.00Was: $205.56Qty in Cart: 0Quantity:Price:MSRP: $205.56Now: $185.00Was: $205.56Subtotal: -
On Sale
KIBBLEWHITE Complete Valve Kit - Evolution/1200 20-22950
KIBBLEWHITE
MSRP: $337.54Now: $283.91Was: $337.54A complete valve refresh is essential for maintaining peak combustion efficiency and engine longevity, especially in Evolution and 1200cc engines that demand precision tolerances. This KIBBLEWHITE...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
MSRP: $337.54Now: $283.91Was: $337.54 -
On Sale
KIBBLEWHITE Valve Kit - Twin Cam 20-23000
KIBBLEWHITE
MSRP: $124.09Now: $101.95Was: $124.09Factory valve wear accelerates drastically under high RPM and sustained heat cycles, compromising compression and throttle response. The KIBBLEWHITE Valve Kit delivers Black Diamond™ stainless steel...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
MSRP: $124.09Now: $101.95Was: $124.09 -
On Sale
KIBBLEWHITE Complete Valve Kit - Twin Cam 20-23050
KIBBLEWHITE
MSRP: $275.07Now: $222.28Was: $275.07A complete valve kit is essential for any Twin Cam engine rebuild or high-mileage restoration—it ensures proper sealing, combustion efficiency, and longevity across all cylinders. The KIBBLEWHITE...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
MSRP: $275.07Now: $222.28Was: $275.07
