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 Cast Iron Valve Guide 20-2050C
KIBBLEWHITE
MSRP: $9.84Now: $8.86Was: $9.84Precision valve guides are critical to maintaining proper valve alignment, controlling stem wear, and ensuring consistent combustion chamber sealing—especially in high-performance or high-mileage...09260759- SKU:
- 09260759
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MATERIAL:
- CAST IRON
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- INSIDE DIAMETER IMPERIAL:
- 0.3745'
- APPLICATION:
- INTAKE
- OUTSIDE DIAMETER IMPERIAL:
- 0.6250'
- UNITS:
- EACH
MSRP: $9.84Now: $8.86Was: $9.84 -
On Sale
KIBBLEWHITE Cast Iron Valve Guide 20-2060C
KIBBLEWHITE
MSRP: $9.84Now: $8.86Was: $9.84A precision valve guide is the foundation of reliable cylinder head performance, ensuring proper valve alignment and minimizing stem wear across extended race seasons or high-mileage builds. The...09260760- SKU:
- 09260760
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.3745'
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 0.6250'
MSRP: $9.84Now: $8.86Was: $9.84 -
On Sale
KIBBLEWHITE Valve Guide 20-4322
KIBBLEWHITE
MSRP: $37.93Now: $34.14Was: $37.93If you're rebuilding a high-revving engine or restoring a classic with modern fuel compatibility in mind, valve guide quality directly impacts combustion efficiency, ring seal integrity, and overall...09260761- SKU:
- 09260761
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- MATERIAL:
- C630 BRONZE
- RIDING STYLE:
- STREET
- BASE COLOR:
- BROWN
- OUTSIDE DIAMETER IMPERIAL:
- 0.5640'
- PRODUCT NAME:
- VALVE GUIDE
- APPLICATION:
- EXHAUST
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- APPLICATION:
- INTAKE
- COLOR/FINISH:
- BRONZE
- INSIDE DIAMETER IMPERIAL:
- 0.3090'
- UNITS:
- EACH
MSRP: $37.93Now: $34.14Was: $37.93 -
On Sale
KIBBLEWHITE Exhaust Valve - XL 20-4168
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55Exhaust valves are where combustion forces meet component durability—and failure here costs you performance and engine reliability. The KIBBLEWHITE XL 20-4168 combines precision stainless-steel...09260783- SKU:
- 09260783
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- LENGTH IMPERIAL:
- 3.620'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 29°
- HEAD DIAMETER IMPERIAL:
- 1.750'
- STEM DIAMETER IMPERIAL:
- 0.3384'
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Exhaust Valve - XL 20-2012
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55If you're running a high-performance engine that demands reliability under extreme conditions, valve durability isn't negotiable. KIBBLEWHITE's XL 20-2012 exhaust valves combine precision engineering...09260784- SKU:
- 09260784
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER IMPERIAL:
- 1.480'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 4.625'
- STEM DIAMETER IMPERIAL:
- 0.3096'
- TULIP ANGLE:
- 40°
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Intake Valve - Big Twin 20-4256
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $31.01If you're running a Big Twin engine that demands consistent performance across extended high-RPM sessions, intake valve quality directly impacts combustion efficiency, heat dissipation, and component...09260786- SKU:
- 09260786
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- HEAD DIAMETER IMPERIAL:
- 2.000'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.3765'
- TULIP ANGLE:
- 23°
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 3.885'
- UNITS:
- EACH
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Intake Valve - XL 20-4196-1
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55If you're running a high-revving engine that demands reliability under extreme conditions, valve wear is your silent killer. The KIBBLEWHITE Intake Valve XL 20-4196-1 combines superior materials with...09260787- SKU:
- 09260787
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- HEAD DIAMETER IMPERIAL:
- 2.000'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 23°
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 3.620'
- STEM DIAMETER IMPERIAL:
- 0.3090'
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Intake Valve - XL 20-4167
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55If you're running a high-revving engine that demands reliability under sustained heat and load, valve wear becomes your limiting factor. The KIBBLEWHITE Intake Valve XL 20-4167 combines superior...09260788- SKU:
- 09260788
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- HEAD DIAMETER IMPERIAL:
- 1.950'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 0.3090'
- TULIP ANGLE:
- 23°
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- APPLICATION:
- INTAKE
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 3.690'
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Intake Valve - XL 20-2010
KIBBLEWHITE
MSRP: $37.55Now: $33.80Was: $37.55If you're running a high-revving engine or planning extended track sessions, valve wear becomes a real limiting factor in reliability and performance. The KIBBLEWHITE Intake Valve XL 20-2010 uses a...09260789- SKU:
- 09260789
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- TULIP ANGLE:
- 23°
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
- PRODUCT NAME:
- VALVE
- STEM DIAMETER IMPERIAL:
- 0.3100'
- APPLICATION:
- INTAKE
- HEAD DIAMETER IMPERIAL:
- 1.715'
- LENGTH IMPERIAL:
- 4.550'
- UNITS:
- EACH
MSRP: $37.55Now: $33.80Was: $37.55 -
On Sale
KIBBLEWHITE Valve Seals 71002-4
KIBBLEWHITE
MSRP: $11.94Now: $10.75Was: $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...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
MSRP: $11.94Now: $10.75Was: $11.94 -
On Sale
KIBBLEWHITE Valve Spring Kit - XL 20-2210
KIBBLEWHITE
MSRP: $142.97Now: $128.67Was: $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...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'
MSRP: $142.97Now: $128.67Was: $142.97 -
On Sale
KIBBLEWHITE Valve Spring Kit - Big Twin 20-2110
KIBBLEWHITE
MSRP: $147.47Now: $132.72Was: $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...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
MSRP: $147.47Now: $132.72Was: $147.47 -
On Sale
KIBBLEWHITE Valve Spring Kit - Big Twin 20-20132
KIBBLEWHITE
MSRP: $148.02Now: $133.22Was: $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...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
MSRP: $148.02Now: $133.22Was: $148.02 -
On Sale
KIBBLEWHITE VALVE SPRINGS 66-84 SHOVELHEAD 20-2000
KIBBLEWHITE
MSRP: $64.50Now: $58.05Was: $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...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
MSRP: $64.50Now: $58.05Was: $64.50 -
On Sale
KIBBLEWHITE Valve Springs - XL 20-2215
KIBBLEWHITE
MSRP: $51.22Now: $46.10Was: $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...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
MSRP: $51.22Now: $46.10Was: $51.22 -
On Sale
KIBBLEWHITE Exhaust Valve - Evolution 20-4170R
KIBBLEWHITE
MSRP: $26.62Now: $23.96Was: $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...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°
MSRP: $26.62Now: $23.96Was: $26.62 -
On Sale
KIBBLEWHITE Valve Seals - Evolution 71008-4
KIBBLEWHITE
MSRP: $11.94Now: $10.75Was: $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...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
MSRP: $11.94Now: $10.75Was: $11.94 -
On Sale
KIBBLEWHITE Intake Valve - 1200 XL 20-2013
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $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,...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°
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Exhaust Valve - 1200 XL 20-2014
KIBBLEWHITE
MSRP: $31.01Now: $27.91Was: $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...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'
MSRP: $31.01Now: $27.91Was: $31.01 -
On Sale
KIBBLEWHITE Intake Valve - Twin Cam 20-20055
KIBBLEWHITE
MSRP: $29.81Now: $26.83Was: $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...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
MSRP: $29.81Now: $26.83Was: $29.81
