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
-
Hastings HASTINGS Piston Rings - Evolution 6164030
HASTINGS
$37.85Hastings piston rings are engineered for serious builders who demand reliable ring seal, low blowby, and consistent compression across the RPM range. The Evolution 6164030 delivers proven durability...DS750643- SKU:
- DS750643
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE - OVERSIZE:
- +0,030'
- PRODUCT NAME:
- PISTON RING
- RING MATERIAL:
- CAST
- STYLE:
- OEM REPLACEMENT
- BORE OVERSIZE - IMPERIAL:
- +0.030'
- RIDING STYLE:
- STREET
- UNITS:
- SET
- BORE SIZE IMPERIAL:
- 3.498'
$37.85 -
DRAG SPECIALTIES Gasket Board - XL/EVO 0934-1667
DRAG SPECIALTIES
$108.95If you're rebuilding XL Evolution motors regularly, you need an organized system to keep gaskets, seals, and O-rings inventory visible and accessible. This four-color Drag Specialties display board...09341667- SKU:
- 09341667
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DISPLAY BOARD
- UNITS:
- EACH
- TYPE:
- GASKET
$108.95Qty in Cart: 0Quantity:Price:$108.95Subtotal: -
DRAG SPECIALTIES Vent Line - FLT 07110032
DRAG SPECIALTIES
$79.49The stock rubber crankcase vent line degrades over time, leading to pressure buildup, leaks, and potential engine damage. This DRAG SPECIALTIES vent line replaces that weak link with highly chromed...07110032- SKU:
- 07110032
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- TYPE:
- CRANKCASE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- FEATURES:
- INCLUDES FITTING
- MATERIAL:
- STEEL
- PRODUCT NAME:
- VENT TUBE
$79.49 -
DRAG SPECIALTIES Tensioner - Primary - Twin Cam R39954-99A
DRAG SPECIALTIES
$39.09A worn primary tensioner compromises valve train accuracy and can lead to chain slap, increased wear on your camshaft drive, and unpredictable ignition timing—all critical failures in...09500960- SKU:
- 09500960
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- PRIMARY
- PRODUCT NAME:
- TENSIONER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$39.09Qty in Cart: 0Quantity:Price:$39.09Subtotal: -
DRAG SPECIALTIES Tensioner - Secondary - Twin Cam R39964-99A
DRAG SPECIALTIES
$42.64A failing secondary tensioner compromises cam chain integrity and can lead to timing issues, increased noise, and catastrophic engine damage. This DRAG SPECIALTIES replacement maintains precise...09500961- SKU:
- 09500961
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- TYPE:
- SECONDARY
- PRODUCT NAME:
- TENSIONER
- UNITS:
- EACH
$42.64 -
DRAG SPECIALTIES Pushrod Tube Kit - Big Twin 75715
DRAG SPECIALTIES
$120.79Pushrods are critical to maintaining precise valve timing and hydraulic lifter preload in your Big Twin engine—worn or bent tubes directly compromise top-end performance and reliability. This...DS193761- SKU:
- DS193761
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- BASE COLOR:
- SILVER
- BASE FINISH:
- CHROME
- TYPE:
- PUSHROD
- UNITS:
- KIT
- PRODUCT NAME:
- TUBE KIT
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
$120.79Qty in Cart: 0Quantity:Price:$120.79Subtotal: -
DRAG SPECIALTIES Chrome Filter Mount - 80" 74900
DRAG SPECIALTIES
$87.93If you're running a classic or custom build with a remote oil filtration setup, this Chrome Filter Mount delivers the reliability and clean aesthetics your engine bay demands. The...DS275107- SKU:
- DS275107
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- PRODUCT NAME:
- MOUNT
- BASE FINISH:
- CHROME
- TYPE:
- OIL FILTER
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$87.93 -
FEULING OIL PUMP CORP. Race Series 508 Camshaft Kit 1459
FEULING OIL PUMP CORP.
$699.95Include camshafts, lifters and a cam installation kit that, includes the cam bearing, cam/ crank hardware, Kit also includes gasket/O-ring kit that allows installation of Feuling Heavy-Duty HP+ ...09290084- SKU:
- 09290084
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- LIFTER
- UNITS:
- KIT
$699.95Qty in Cart: 0Quantity:Price:$699.95Subtotal: -
On Sale
GOODRIDGE Oil Line - Stainless Steel - 3/8" - 6' 202-06-6
GOODRIDGE
MSRP: $51.95Now: $46.76Was: $51.95An economical single braid hose for use with hose finishers or common hose clamps, Compatible for fuel and oil applications07110096- SKU:
- 07110096
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- COLOR/FINISH:
- SILVER
- INSIDE DIAMETER METRIC:
- 9.5 MM
- TYPE:
- FUEL
- LENGTH METRIC:
- 183 CM
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 6'
- MATERIAL:
- NEOPRENE
- TYPE:
- OIL LINE
- INSIDE DIAMETER IMPERIAL:
- 3/8'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- HOSE
- STYLE:
- BRAIDED
- UNITS:
- EACH
MSRP: $51.95Now: $46.76Was: $51.95Qty in Cart: 0Quantity:Price:MSRP: $51.95Now: $46.76Was: $51.95Subtotal: -
On Sale
GOODRIDGE Oil Line - Stainless Steel - 3/8" - 10' 202-06-10
GOODRIDGE
MSRP: $86.95Now: $78.26Was: $86.95An economical single braid hose for use with hose finishers or common hose clamps, Compatible for fuel and oil applications07110097- SKU:
- 07110097
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- SILVER
- INSIDE DIAMETER METRIC:
- 9.5 MM
- LENGTH METRIC:
- 305 CM
- UNITS:
- EACH
- MATERIAL:
- NEOPRENE
- RIDING STYLE:
- STREET
- TYPE:
- FUEL
- TYPE:
- OIL LINE
- INSIDE DIAMETER IMPERIAL:
- 3/8'
- LENGTH IMPERIAL:
- 10'
- PRODUCT NAME:
- HOSE
- STYLE:
- BRAIDED
MSRP: $86.95Now: $78.26Was: $86.95Qty in Cart: 0Quantity:Price:MSRP: $86.95Now: $78.26Was: $86.95Subtotal: -
On Sale
GOODRIDGE Oil Line - Stainless Steel - 3/8" - 25' 202-06-25
GOODRIDGE
MSRP: $207.95Now: $187.16Was: $207.95An economical single braid hose for use with hose finishers or common hose clamps, Compatible for fuel and oil applications07110098- SKU:
- 07110098
- Availability:
- Ships Same Business Day
- Weight:
- 4.21 LBS
- COLOR/FINISH:
- SILVER
- INSIDE DIAMETER METRIC:
- 9.5 MM
- LENGTH IMPERIAL:
- 25'
- LENGTH METRIC:
- 7.62 M
- TYPE:
- OIL LINE
- UNITS:
- EACH
- MATERIAL:
- NEOPRENE
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- HOSE
- RIDING STYLE:
- STREET
- TYPE:
- FUEL
- INSIDE DIAMETER IMPERIAL:
- 3/8'
- STYLE:
- BRAIDED
MSRP: $207.95Now: $187.16Was: $207.95 -
COVINGTONS Smooth Chrome Cover - Twin Cam C1296-C
COVINGTONS
$634.95A quality primary cover protects your Twin Cam engine's internal components while delivering a clean, finished appearance that reflects your attention to detail. The COVINGTONS Smooth Chrome Cover...09401351- SKU:
- 09401351
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- TYPE:
- CAM
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- STYLE:
- SMOOTH
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
$634.95Qty in Cart: 0Quantity:Price:$634.95Subtotal: -
On Sale
ARLEN NESS Rocker Cover Box - 10 Gauge - Chrome 18-252
ARLEN NESS
MSRP: $549.95Now: $494.96Was: $549.95The ARLEN NESS Rocker Cover Box transforms your engine's visual presence with precision-engineered billet construction that commands attention while maintaining OEM fitment and reliability. Machined...09401341- SKU:
- 09401341
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- MATERIAL:
- BILLET ALUMINUM
- TYPE:
- ROCKER BOX
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- MODEL:
- 10 GAUGE
- UNITS:
- PAIR
MSRP: $549.95Now: $494.96Was: $549.95Qty in Cart: 0Quantity:Price:MSRP: $549.95Now: $494.96Was: $549.95Subtotal: -
On Sale
ARLEN NESS Lifter Block Cover - 10 Gauge - Black 12-573
ARLEN NESS
MSRP: $199.95Now: $179.96Was: $199.95A quality lifter block cover protects your engine's internal components from debris, moisture, and contaminants while maintaining a clean, finished appearance in the engine bay. The ARLEN NESS 10...09401346- SKU:
- 09401346
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLACK ANODIZED
- PRODUCT NAME:
- COVER
- TYPE:
- LIFTER BLOCK
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
MSRP: $199.95Now: $179.96Was: $199.95Qty in Cart: 0Quantity:Price:MSRP: $199.95Now: $179.96Was: $199.95Subtotal: -
On Sale
ARLEN NESS Lifter Block Cover - Chrome 12-582
ARLEN NESS
MSRP: $249.95Now: $224.96Was: $249.95The ARLEN NESS Lifter Block Cover delivers a refined, finished look to your engine bay while protecting critical components from debris and moisture. Precision-machined from billet aluminum, this...09401660- SKU:
- 09401660
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- COVER
- UNITS:
- PAIR
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- CHROME
- TYPE:
- LIFTER BLOCK
MSRP: $249.95Now: $224.96Was: $249.95Qty in Cart: 0Quantity:Price:MSRP: $249.95Now: $224.96Was: $249.95Subtotal: -
On Sale
ARLEN NESS Cam Cover - Titanium 03-976
ARLEN NESS
MSRP: $299.95Now: $269.96Was: $299.95The OEM die-cast cam cover is prone to cracking and leaking under high-rpm stress, compromising engine reliability and aesthetics. The ARLEN NESS Titanium Cam Cover replaces that weak point with...09401902- SKU:
- 09401902
- Availability:
- Ships Same Business Day
- Weight:
- 2.96 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- TYPE:
- CAM
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- TITANIUM
- MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $299.95Now: $269.96Was: $299.95Qty in Cart: 0Quantity:Price:MSRP: $299.95Now: $269.96Was: $299.95Subtotal: -
On Sale
ARLEN NESS Lifter Block - Black 12-584
ARLEN NESS
MSRP: $249.95Now: $224.96Was: $249.95The ARLEN NESS Lifter Block delivers precision engine positioning for Harley-Davidson platforms where OEM geometry falls short. CNC-machined from aircraft-grade billet aluminum, this component...09401907- SKU:
- 09401907
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- COLOR/FINISH:
- BLACK ANODIZED
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- LIFTER BLOCK
- COLOR/FINISH:
- BLACK
- MODEL:
- 10 GAUGE
- UNITS:
- PAIR
MSRP: $249.95Now: $224.96Was: $249.95Qty in Cart: 0Quantity:Price:MSRP: $249.95Now: $224.96Was: $249.95Subtotal: -
On Sale
ARLEN NESS Rocker Cover - Titanium 18-267
ARLEN NESS
MSRP: $699.95Now: $629.96Was: $699.95The ARLEN NESS Rocker Cover transforms your engine's appearance while maintaining the reliability of OEM fitment. Crafted from 6061 T-6 forged billet aluminum, this cover delivers the aesthetic...09401912- SKU:
- 09401912
- Availability:
- Ships Same Business Day
- Weight:
- 5.71 LBS
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- TYPE:
- ROCKER BOX
- COLOR/FINISH:
- TITANIUM
- MODEL:
- 10 GAUGE
- UNITS:
- PAIR
MSRP: $699.95Now: $629.96Was: $699.95Qty in Cart: 0Quantity:Price:MSRP: $699.95Now: $629.96Was: $699.95Subtotal: -
On Sale
KIBBLEWHITE Valve Spring Kit - Big Twin 20-20435
KIBBLEWHITE
MSRP: $129.79Now: $116.81Was: $129.79Factory valve springs lose their tension over time, compromising combustion efficiency and risking valve float at high RPM. The KIBBLEWHITE Valve Spring Kit restores OE performance specifications...09261443- SKU:
- 09261443
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- RIDING STYLE:
- STREET
- SPRING OPEN PRESSURE:
- 272 LB
- SPRING SEAT PRESSURE:
- 129 LB
- COLLAR MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
- APPLICATION:
- INTAKE
- MATERIAL:
- STEEL
- SPRING LIFT IMPERIAL:
- 0.415'
MSRP: $129.79Now: $116.81Was: $129.79 -
On Sale
KIBBLEWHITE Exhaust Valve 20-20960
KIBBLEWHITE
MSRP: $41.12Now: $37.01Was: $41.12Exhaust valves endure extreme thermal cycling and combustion pressures—marginal quality leads to premature failure, loss of compression, and costly engine rebuilds. The KIBBLEWHITE Black Diamond™...09262996- SKU:
- 09262996
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- LENGTH IMPERIAL:
- 4.535'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- STREET
- STEM DIAMETER IMPERIAL:
- 0.3106'
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 43.18 MM
- TULIP ANGLE:
- 25°
MSRP: $41.12Now: $37.01Was: $41.12
