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 Valve Guide - Twin Cam 20-20702C
KIBBLEWHITE
MSRP: $11.98Now: $10.78Was: $11.98Valve guides are critical components that determine how precisely your valve seats and operates—poor guides lead to excessive wear, oil consumption, and power loss. KIBBLEWHITE's precision-machined...09262019- SKU:
- 09262019
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- CAST IRON
- OUTSIDE DIAMETER IMPERIAL:
- 0.5640'
- APPLICATION:
- EXHAUST
- SIZE IMPERIAL:
- OVERSIZE (+0.002')
- INSIDE DIAMETER IMPERIAL:
- 0.2750'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $11.98Now: $10.78Was: $11.98 -
On Sale
KIBBLEWHITE Valve Guide 20-20709
KIBBLEWHITE
MSRP: $29.60Now: $26.64Was: $29.60Factory valve guides wear out—especially under sustained high RPM or aggressive tuning. KIBBLEWHITE's precision-machined C630 guides restore proper valve sealing, concentrating flow and eliminating...09262020- SKU:
- 09262020
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.2750'
- APPLICATION:
- EXHAUST
- COLOR/FINISH:
- BRONZE
- BASE COLOR:
- BROWN
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.5720'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
- UNITS:
- EACH
MSRP: $29.60Now: $26.64Was: $29.60 -
On Sale
KIBBLEWHITE Valve Guide - Twin Cam 20-20709C
KIBBLEWHITE
MSRP: $11.98Now: $10.78Was: $11.98Valve guides are critical to engine longevity—they maintain proper valve alignment, reduce wear on valve stems, and prevent oil leakage into the combustion chamber. The KIBBLEWHITE 20-20709C Twin Cam...09262021- SKU:
- 09262021
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.2750'
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 0.5720'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
- APPLICATION:
- EXHAUST
- MATERIAL:
- CAST IRON
MSRP: $11.98Now: $10.78Was: $11.98 -
On Sale
KIBBLEWHITE Valve Guide - Big Twin 20-20HS
KIBBLEWHITE
MSRP: $34.40Now: $30.96Was: $34.40Valve guides are critical to engine longevity—they prevent excessive valve stem wear, maintain precise valve seating, and protect against catastrophic cylinder head damage. The KIBBLEWHITE 20-20HS is...09262022- SKU:
- 09262022
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- APPLICATION:
- INTAKE
- MATERIAL:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.5900'
- INSIDE DIAMETER IMPERIAL:
- 0.3760'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.025')
- UNITS:
- EACH
MSRP: $34.40Now: $30.96Was: $34.40 -
On Sale
KIBBLEWHITE Valve Guide - Big Twin 20-20HSC
KIBBLEWHITE
MSRP: $9.84Now: $8.86Was: $9.84Valve guides are critical wear surfaces that directly impact engine sealing, oil consumption, and overall reliability—especially in high-performance Big Twin applications where precision tolerances...09262023- SKU:
- 09262023
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MATERIAL:
- CAST IRON
- APPLICATION:
- INTAKE
- INSIDE DIAMETER IMPERIAL:
- 0.3760'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.025')
- OUTSIDE DIAMETER IMPERIAL:
- 0.5900'
- UNITS:
- EACH
MSRP: $9.84Now: $8.86Was: $9.84 -
On Sale
KIBBLEWHITE Valve Guide 20-2329
KIBBLEWHITE
MSRP: $34.40Now: $30.96Was: $34.40If you're rebuilding a high-revving engine or restoring a classic with modern performance expectations, valve guide quality directly impacts cylinder head longevity and flow efficiency. KIBBLEWHITE's...09262024- SKU:
- 09262024
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BRONZE
- INSIDE DIAMETER IMPERIAL:
- 0.3085'
- OUTSIDE DIAMETER IMPERIAL:
- 0.5750'
- BASE COLOR:
- BROWN
- MATERIAL:
- C630 BRONZE
MSRP: $34.40Now: $30.96Was: $34.40 -
On Sale
KIBBLEWHITE Valve Guide 20-2339
KIBBLEWHITE
MSRP: $34.40Now: $30.96Was: $34.40If you're rebuilding a high-revving engine or restoring a classic with modern fuel standards in mind, quality valve guides are non-negotiable. The KIBBLEWHITE Valve Guide 20-2339 delivers precision...09262026- SKU:
- 09262026
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- EXHAUST
- UNITS:
- EACH
- COLOR/FINISH:
- BRONZE
- INSIDE DIAMETER IMPERIAL:
- 0.3375'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- BASE COLOR:
- BROWN
- MATERIAL:
- C630 BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.5750'
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
MSRP: $34.40Now: $30.96Was: $34.40 -
On Sale
KIBBLEWHITE Cast Iron Valve Guide - XL 20-2339C
KIBBLEWHITE
MSRP: $9.84Now: $8.86Was: $9.84Valve guides are the silent workhorses of your cylinder head—they keep your valves perfectly centered, minimize lateral wear, and maintain tight tolerances under extreme heat and RPM. KIBBLEWHITE's...09262027- SKU:
- 09262027
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.5750'
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.3375'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- MATERIAL:
- CAST IRON
MSRP: $9.84Now: $8.86Was: $9.84 -
On Sale
KIBBLEWHITE Valve Guide - Big Twin 20-30HS
KIBBLEWHITE
MSRP: $34.40Now: $30.96Was: $34.40Valve guides are critical to engine longevity—they keep your intake and exhaust valves properly seated and aligned under extreme heat and combustion pressures. The KIBBLEWHITE 20-30HS delivers the...09262028- SKU:
- 09262028
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- OVERSIZE (+0.025')
- INSIDE DIAMETER IMPERIAL:
- 0.3760'
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.5900'
MSRP: $34.40Now: $30.96Was: $34.40 -
On Sale
KIBBLEWHITE Valve Guide 20-4329
KIBBLEWHITE
MSRP: $37.93Now: $34.14Was: $37.93If you're rebuilding a cylinder head or restoring an engine to factory specifications, valve guide wear is often the silent culprit behind oil consumption, blow-by, and compromised ring seal. The...09262030- SKU:
- 09262030
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE COLOR:
- BROWN
- OUTSIDE DIAMETER IMPERIAL:
- 0.5720'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- MATERIAL:
- C630 BRONZE
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- INSIDE DIAMETER IMPERIAL:
- 0.3090'
- COLOR/FINISH:
- BRONZE
MSRP: $37.93Now: $34.14Was: $37.93 -
On Sale
KIBBLEWHITE Valve Guide - Big Twin 20-4329C
KIBBLEWHITE
MSRP: $9.84Now: $8.86Was: $9.84Valve guides are critical to engine longevity and performance—they control oil consumption, maintain proper valve sealing, and prevent costly cylinder head damage. The KIBBLEWHITE 20-4329C Big Twin...09262031- SKU:
- 09262031
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- EXHAUST
- UNITS:
- EACH
- OUTSIDE DIAMETER IMPERIAL:
- 0.5720'
- SIZE IMPERIAL:
- OVERSIZE (+0.010')
- INSIDE DIAMETER IMPERIAL:
- 0.3098'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- MATERIAL:
- CAST IRON
MSRP: $9.84Now: $8.86Was: $9.84 -
On Sale
KIBBLEWHITE Valve Guide - Big Twin 20-50HS
KIBBLEWHITE
MSRP: $30.95Now: $27.86Was: $30.95Valve guides are critical to engine longevity—they control oil consumption, maintain proper valve sealing, and prevent catastrophic wear in high-RPM applications. The KIBBLEWHITE 20-50HS uses a...09262032- SKU:
- 09262032
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.3755'
- OUTSIDE DIAMETER IMPERIAL:
- 0.6500'
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- MATERIAL:
- BRONZE
- SIZE IMPERIAL:
- OVERSIZE (+0.025')
MSRP: $30.95Now: $27.86Was: $30.95 -
On Sale
KIBBLEWHITE Cast Iron Valve Guide 20-50HSC
KIBBLEWHITE
MSRP: $9.84Now: $8.86Was: $9.84Valve guide wear compromises cylinder head integrity and fuel efficiency—replacing worn guides with precision-machined components restores proper valve sealing and extends engine life. The...09262033- SKU:
- 09262033
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- INSIDE DIAMETER IMPERIAL:
- 0.3745'
- MATERIAL:
- CAST IRON
- APPLICATION:
- INTAKE
- OUTSIDE DIAMETER IMPERIAL:
- 0.6500'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
MSRP: $9.84Now: $8.86Was: $9.84Qty in Cart: 0Quantity:Price:MSRP: $9.84Now: $8.86Was: $9.84Subtotal: -
On Sale
KIBBLEWHITE Cast Iron Valve Guide 20-60HSC
KIBBLEWHITE
MSRP: $9.84Now: $8.86Was: $9.84Precision valve guides are critical to maintaining proper valve sealing, reducing blow-by, and extending engine life—especially in high-performance or rebuilt applications. The KIBBLEWHITE Cast Iron...09262035- SKU:
- 09262035
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- OUTSIDE DIAMETER IMPERIAL:
- 0.6500'
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- INSIDE DIAMETER IMPERIAL:
- 0.3745'
- MATERIAL:
- CAST IRON
MSRP: $9.84Now: $8.86Was: $9.84 -
On Sale
KIBBLEWHITE SEAL VALVE BT 84-04 EA 71032-4
KIBBLEWHITE
MSRP: $8.16Now: $7.34Was: $8.16Valve seals are critical to preventing oil blow-by and maintaining proper crankcase pressure in vintage Harley-Davidson engines. Kibblewhite's OEM-quality seals ensure consistent valve stem...09262041- SKU:
- 09262041
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- STEM DIAMETER IMPERIAL:
- 0.3125'
- APPLICATION:
- EXHAUST
- LENGTH IMPERIAL:
- 0.385'
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
- APPLICATION:
- INTAKE
- HEAD DIAMETER IMPERIAL:
- 0.4200'
- OUTSIDE DIAMETER IMPERIAL:
- 0.5650'
- RIDING STYLE:
- STREET
- TYPE:
- VALVE GUIDE
MSRP: $8.16Now: $7.34Was: $8.16 -
On Sale
KIBBLEWHITE SEAL VALVE INT XL 57-85EA 71033-4
KIBBLEWHITE
MSRP: $8.16Now: $7.34Was: $8.16A worn or leaking intake valve seal compromises combustion efficiency and can lead to oil consumption issues that damage engine performance over time. Kibblewhite's precision-engineered valve seals...09262044- SKU:
- 09262044
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- INTAKE
- LENGTH IMPERIAL:
- 0.375'
- STEM DIAMETER IMPERIAL:
- 0.3125'
- HEAD DIAMETER IMPERIAL:
- 0.531'
- RIDING STYLE:
- STREET
- TYPE:
- VALVE GUIDE
- PRODUCT NAME:
- SEAL
- UNITS:
- 4 PACK
- OUTSIDE DIAMETER IMPERIAL:
- 0.6300'
MSRP: $8.16Now: $7.34Was: $8.16 -
On Sale
KIBBLEWHITE SEAL VLV EX XL 57-85 EA 71034-4
KIBBLEWHITE
MSRP: $8.16Now: $7.34Was: $8.16Exhaust valve seals are critical to maintaining compression and preventing oil burn-off in your engine—neglecting them leads to blue smoke, performance loss, and costly damage. The Kibblewhite Seal...09262047- SKU:
- 09262047
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- TYPE:
- VALVE GUIDE
- LENGTH IMPERIAL:
- 0.375'
- OUTSIDE DIAMETER IMPERIAL:
- 0.6300'
- UNITS:
- 4 PACK
- APPLICATION:
- EXHAUST
- HEAD DIAMETER IMPERIAL:
- 0.531'
- PRODUCT NAME:
- SEAL
- STEM DIAMETER IMPERIAL:
- 0.3438'
- RIDING STYLE:
- STREET
MSRP: $8.16Now: $7.34Was: $8.16 -
On Sale
KIBBLEWHITE SEAL VLV 48-E79 BT EA 71035-4
KIBBLEWHITE
MSRP: $8.16Now: $7.34Was: $8.16Valve seal integrity is critical to maintaining proper compression and preventing oil blowby in high-performance engines. The Kibblewhite Seal VLV 48-E79 BT delivers OEM-quality sealing with the...09262050- SKU:
- 09262050
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- VALVE GUIDE
- HEAD DIAMETER IMPERIAL:
- 0.562'
- LENGTH IMPERIAL:
- 3.375'
- STEM DIAMETER IMPERIAL:
- 0.3750'
- UNITS:
- 4 PACK
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.5620'
- PRODUCT NAME:
- SEAL
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
MSRP: $8.16Now: $7.34Was: $8.16 -
On Sale
KIBBLEWHITE SEAL VLV L79-E84 BT EA 71036-4
KIBBLEWHITE
MSRP: $8.16Now: $7.34Was: $8.16Kibblewhite valve seals are engineered to withstand extreme combustion pressures and temperature cycles without degradation, ensuring your engine maintains proper oil control and peak performance...09262053- SKU:
- 09262053
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- LENGTH IMPERIAL:
- 0.400'
- PRODUCT NAME:
- SEAL
- STEM DIAMETER IMPERIAL:
- 0.3750'
- UNITS:
- 4 PACK
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.5620'
- APPLICATION:
- INTAKE
- RIDING STYLE:
- STREET
- TYPE:
- VALVE GUIDE
MSRP: $8.16Now: $7.34Was: $8.16 -
On Sale
KIBBLEWHITE Valve Guide 20-2020M
KIBBLEWHITE
MSRP: $15.10Now: $13.59Was: $15.10If you're rebuilding a high-revving engine, valve guide wear is one of the most common culprits behind oil consumption and performance loss. The KIBBLEWHITE Valve Guide 20-2020M offers a...09262266- SKU:
- 09262266
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- INSIDE DIAMETER IMPERIAL:
- 0.3760'
- MATERIAL:
- BRONZE
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- SIZE IMPERIAL:
- STANDARD
- OUTSIDE DIAMETER IMPERIAL:
- 0.5650'
- UNITS:
- EACH
MSRP: $15.10Now: $13.59Was: $15.10
