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
-
DRAG SPECIALTIES Top Motor Mount 74021
DRAG SPECIALTIES
$40.23Engine movement under hard acceleration creates vibration that transfers through your chassis, robbing you of precision handling and accelerating wear on surrounding components. The Drag Specialties...DS243602- SKU:
- DS243602
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- PRODUCT NAME:
- MOUNT
- TYPE:
- ENGINE
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- TOP
$40.23Qty in Cart: 0Quantity:Price:$40.23Subtotal: -
DRAG SPECIALTIES Heavy Duty Motor Mount - Softail 74807
DRAG SPECIALTIES
$70.97Stock motor mounts on Softail models can flex under hard acceleration and engine vibration, leading to premature wear and misalignment issues that compromise performance and longevity. These DRAG...DS243607- SKU:
- DS243607
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- PRODUCT NAME:
- MOUNT
- TYPE:
- MOTOR
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- TOP
$70.97Qty in Cart: 0Quantity:Price:$70.97Subtotal: -
DRAG SPECIALTIES Gasket Board - 6 Speed 0934-6982
DRAG SPECIALTIES
$125.95A properly sealed transmission is non-negotiable for reliable power delivery and longevity in any high-performance application. The DRAG SPECIALTIES Gasket Board for 6-speed transmissions provides...09346982- SKU:
- 09346982
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET BOARD
- STYLE:
- 6 SPEED
$125.95 -
DRAG SPECIALTIES Gasket Board - 6 Speed 0934-6983
DRAG SPECIALTIES
$118.95A worn or degraded gasket board compromises transmission sealing, leading to fluid leaks, contamination, and potential drivetrain failure—especially critical in high-performance 6-speed applications...09346983- SKU:
- 09346983
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- PRODUCT NAME:
- GASKET BOARD
- RIDING STYLE:
- STREET
- STYLE:
- 6 SPEED
- UNITS:
- EACH
$118.95 -
DRAG SPECIALTIES Gasket Board - XL 0934-1878
DRAG SPECIALTIES
$202.95If you're running a professional shop or serious home garage, keeping XL Evolution gaskets, seals, and O-rings organized and accessible is non-negotiable. This display board eliminates the guesswork...09341878- SKU:
- 09341878
- Availability:
- Ships Same Business Day
- Weight:
- 7.05 LBS
- PRODUCT NAME:
- DISPLAY BOARD
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- GASKET
$202.95 -
DRAG SPECIALTIES Flange Adapter 289219
DRAG SPECIALTIES
$45.46If you're running an early Evolution engine with a two-bolt flange manifold, you're limited by carburetor options—until now. This adapter bridges the gap between your classic platform and modern...DS289219- SKU:
- DS289219
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FLANGE ADAPTER
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
$45.46 -
DRAG SPECIALTIES Cam Cover - Twin Cam 25247-99
DRAG SPECIALTIES
$129.27A properly sealed cam cover is critical for preventing oil leakage and maintaining engine cleanliness on Twin Cam motors. The DRAG SPECIALTIES Cam Cover 25247-99 delivers OEM-equivalent fitment and...09400438- SKU:
- 09400438
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- MATERIAL:
- DIE-CAST
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CAM
$129.27 -
DRAG SPECIALTIES Piston - Twin Cam 21988-07
DRAG SPECIALTIES
$135.63Twin Cam engines demand pistons that balance OEM reliability with measurable performance gains. This DRAG SPECIALTIES piston set delivers cast aluminum construction with a low-friction coating that...09110017- SKU:
- 09110017
- Availability:
- Ships Same Business Day
- Weight:
- 2.61 LBS
- BORE SIZE IMPERIAL:
- 3.750'
- PISTON DIAMETER IMPERIAL:
- 3.750'
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- PRODUCT NAME:
- PISTON
$135.63Qty in Cart: 0Quantity:Price:$135.63Subtotal: -
DRAG SPECIALTIES Piston - Twin Cam 21989-07+.005
DRAG SPECIALTIES
$151.53Twin Cam engines demand pistons that balance OEM reliability with cost-effectiveness, and this Drag Specialties offering delivers both without compromise. The cast aluminum alloy construction paired...09110022- SKU:
- 09110022
- Availability:
- Ships Same Business Day
- Weight:
- 2.41 LBS
- PISTON DIAMETER IMPERIAL:
- 3.875'
- PISTON MATERIAL:
- ALUMINUM
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3.875'
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- BORE - OVERSIZE:
- +0,005'
- COMPRESSION RATIO IMPERIAL:
- 9.6:1
- BORE OVERSIZE - IMPERIAL:
- +0.005'
- PRODUCT NAME:
- PISTON
$151.53 -
DRAG SPECIALTIES Piston - Twin Cam 21930-99-005
DRAG SPECIALTIES
$157.89Twin Cam engines demand pistons engineered for high-RPM reliability and consistent performance across extended race sessions. The DRAG Specialties piston delivers the precision fit and material...09110042- SKU:
- 09110042
- Availability:
- Ships Same Business Day
- Weight:
- 2.76 LBS
- BORE - OVERSIZE:
- +0,005'
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3.750'
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- STREET
- BORE OVERSIZE - IMPERIAL:
- +0.005'
$157.89 -
DRAG SPECIALTIES Pushrod Tube Kit - Big Twin 74951
DRAG SPECIALTIES
$137.75Pushrod tubes are critical to maintaining proper valve train geometry and oil delivery in Big Twin engines—wear or damage here directly impacts cylinder head performance and engine longevity. This...DS193764- SKU:
- DS193764
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- PRODUCT NAME:
- TUBE KIT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- BASE FINISH:
- CHROME
- UNITS:
- KIT
- BASE COLOR:
- SILVER
- TYPE:
- PUSHROD
$137.75Qty in Cart: 0Quantity:Price:$137.75Subtotal: -
DRAG SPECIALTIES Pushrod Tube Assembly - XL 72629
DRAG SPECIALTIES
$34.93Pushrod tube assemblies are critical to maintaining proper valve train geometry and preventing catastrophic engine failure. OEM-spec replacement tubes ensure your XL engine breathes correctly and...DS193787- SKU:
- DS193787
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- TUBE ASSEMBLY
- TYPE:
- PUSHROD
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$34.93 -
DRAG SPECIALTIES Pushrod Tube Assembly - Panhead 72703
DRAG SPECIALTIES
$37.05Panhead engines demand precision-engineered pushrods that can withstand high RPM cycles and extreme combustion pressures—substandard replacements will compromise valve timing and engine reliability...DS193788- SKU:
- DS193788
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- BASE FINISH:
- CHROME
- TYPE:
- PUSHROD
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- TUBE ASSEMBLY
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$37.05Qty in Cart: 0Quantity:Price:$37.05Subtotal: -
CUSTOM CYCLE ENGINEERING Rocker Covers - Natural FRC 2003-3
CUSTOM CYCLE ENGINEERING
$457.95Stock Panhead rocker box covers are notorious for weeping oil around their 12-bolt design—a persistent problem that plagues riders and stains garage floors. The CUSTOM CYCLE ENGINEERING Rocker Covers...09400558- SKU:
- 09400558
- Availability:
- Ships Same Business Day
- Weight:
- 6.31 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- UNITS:
- PAIR
- STYLE:
- FINNED
- COLOR/FINISH:
- NATURAL
- MATERIAL:
- 356 T-6 ALUMINUM
- PRODUCT NAME:
- COVER
$457.95 -
CUSTOM CYCLE ENGINEERING Rocker Cover - Finned - Polished - EVO CCE5833
CUSTOM CYCLE ENGINEERING
$475.95If you're running a high-performance EVO motor, your rocker covers need to do more than look good—they need to breathe, seal reliably, and clear aggressive cam profiles without compromise. The Custom...09400983- SKU:
- 09400983
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
- BASE FINISH:
- POLISHED
- TYPE:
- ROCKER BOX
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- ALUMINUM
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$475.95 -
CUSTOM CYCLE ENGINEERING Top Stabilizer Link - FXD TSL 2014-2
CUSTOM CYCLE ENGINEERING
$391.95Stock motor mounts transmit excessive vibration throughout your FXD chassis, compromising both ride quality and drivetrain longevity. The CUSTOM CYCLE ENGINEERING Top Stabilizer Link replaces the...09330136- SKU:
- 09330136
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- PRODUCT NAME:
- STABILIZER
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- TOP
- TYPE:
- ENGINE
$391.95 -
CUSTOM CYCLE ENGINEERING Rocker Covers - Polished FRC 2003-2
CUSTOM CYCLE ENGINEERING
$584.95Stock Panhead rocker box covers are notorious for oil seepage that compromises engine cleanliness and requires constant maintenance. The CUSTOM CYCLE ENGINEERING Rocker Covers eliminate this problem...09400557- SKU:
- 09400557
- Availability:
- Ships Same Business Day
- Weight:
- 6.25 LBS
- UNITS:
- PAIR
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
- MATERIAL:
- 356 T-6 ALUMINUM
- TYPE:
- ROCKER BOX
$584.95 -
CIRO Front Stabilizer Link Cover 73051
CIRO
$33.99Fix the eyesore of the engine stabilizer with this smooth black cover that will make it melt right into your bike., Quick and easy installation, Black powder coated aluminum, Looks great with Ciro...09401772- SKU:
- 09401772
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- TYPE:
- STABILIZER LINK
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
$33.99 -
On Sale
ANDREWS Cam - M462 - M8 217462
ANDREWS
MSRP: $268.95Now: $242.06Was: $268.95ANDREWS Cam - M462 - M809251205- SKU:
- 09251205
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- INTAKE DURATION IMPERIAL:
- 200°
- INTAKE LOBE CENTERLINE IMPERIAL:
- 94°
- EXHAUST CLOSE IMPERIAL:
- 00°
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.080'
- EXHAUST LIFT IMPERIAL:
- 0.460'
- EXHAUST OPEN IMPERIAL:
- 40°
- INTAKE LIFT IMPERIAL:
- 0.460'
- RIDING STYLE:
- STREET
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 110°
- MODEL:
- M462
- EXHAUST DURATION IMPERIAL:
- 220°
- INTAKE CLOSE IMPERIAL:
- 14°
- INTAKE LIFT AT TDC IMPERIAL:
- 0.106'
- INTAKE OPEN IMPERIAL:
- 6°
- PRODUCT NAME:
- CAMSHAFT KIT
- UNITS:
- KIT
MSRP: $268.95Now: $242.06Was: $268.95 -
On Sale
ANDREWS Cam - M464 - M8 217464
ANDREWS
MSRP: $268.95Now: $242.06Was: $268.95ANDREWS Cam - M464 - M809251206- SKU:
- 09251206
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- EXHAUST OPEN IMPERIAL:
- 50°
- EXHAUST DURATION IMPERIAL:
- 230°
- EXHAUST LOBE CENTERLINE IMPERIAL:
- 115°
- INTAKE DURATION IMPERIAL:
- 210°
- EXHAUST CLOSE IMPERIAL:
- 00°
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.080'
- EXHAUST LIFT IMPERIAL:
- 0.460'
- INTAKE CLOSE IMPERIAL:
- 24°
- INTAKE LOBE CENTERLINE IMPERIAL:
- 099°
- RIDING STYLE:
- STREET
- INTAKE LIFT AT TDC IMPERIAL:
- 0.106'
- INTAKE LIFT IMPERIAL:
- 0.464'
- INTAKE OPEN IMPERIAL:
- 6°
- MODEL:
- M464
- PRODUCT NAME:
- CAMSHAFT KIT
- UNITS:
- KIT
MSRP: $268.95Now: $242.06Was: $268.95
