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 Heavy-Duty Vibration Mount - 1/4" X 1/4" 16-0042
DRAG SPECIALTIES
$31.75Excessive vibration leads to premature component failure, misalignment, and accelerated wear on surrounding assemblies. The DRAG SPECIALTIES Heavy-Duty Vibration Mount isolates critical engine and drivetrain components from destructive oscillations,...07100084- SKU:
- 07100084
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- PRODUCT NAME:
- VIBRATION MOUNT
- RIDING STYLE:
- STREET
- MATERIAL:
- RUBBER
- MATERIAL:
- STEEL
- BASE COLOR:
- BLACK
- UNITS:
- 5 PACK
- COLOR/FINISH:
- BLACK
- TYPE:
- OIL TANK
$31.75 -
DRAG SPECIALTIES Magnetic Ring Oil Filter with Nut - Chrome - 3 1/4" 14-0003HPK-BX18
DRAG SPECIALTIES
$17.84Engine longevity depends on clean oil circulating through critical components, and ferrous particle contamination can accelerate wear on bearings, cylinder walls, and valve train. This Drag Specialties magnetic spin-on filter captures microscopic metal...07120004- SKU:
- 07120004
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- PRODUCT NAME:
- OIL FILTER
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- SPIN-ON
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- FEATURES:
- INCLUDES NUT
- UNITS:
- EACH
$17.84Qty in Cart: 0Quantity:Price:$17.84Subtotal: -
DRAG SPECIALTIES Magnetic Ring Oil Filter with Nut - Chrome - 3-1/4" 14-0020HPK-BX18
DRAG SPECIALTIES
$17.84Magnetic oil filtration isn't just a convenience feature—it's essential maintenance for any engine running hard on the track or street. This Drag Specialties spin-on filter captures ferrous metal particles before they circulate through your engine,...07120008- SKU:
- 07120008
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- FEATURES:
- INCLUDES NUT
- PRODUCT NAME:
- OIL FILTER
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- TYPE:
- SPIN-ON
$17.84 -
DRAG SPECIALTIES Oil Filter with Nut - Black 14-0003BK-BX18
DRAG SPECIALTIES
$13.60Clean oil is non-negotiable for engine longevity, and a quality spin-on filter is your first line of defense against contaminants and wear. The DRAG Specialties Oil Filter with Nut delivers reliable filtration across most Harley-Davidson models, making...07120019- SKU:
- 07120019
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- BLACK
- FEATURES:
- INCLUDES NUT
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- LATE (84 XL)
$13.60Qty in Cart: 0Quantity:Price:$13.60Subtotal: -
DRAG SPECIALTIES Oil Filter with Nut - Black 14-0024BK-BX18
DRAG SPECIALTIES
$14.65A quality oil filter is non-negotiable for engine longevity and performance—contaminated oil accelerates wear on critical components and reduces horsepower output. This Drag Specialties spin-on filter delivers reliable filtration across most H-D models,...07120022- SKU:
- 07120022
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- BLACK
- FEATURES:
- INCLUDES NUT
- STYLE:
- STANDARD
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
$14.65Qty in Cart: 0Quantity:Price:$14.65Subtotal: -
DRAG SPECIALTIES Oil Filter 14-0002
DRAG SPECIALTIES
$13.60Your engine's longevity depends on clean oil circulation, and a quality spin-on filter is the first line of defense against contaminants that accelerate wear. The DRAG SPECIALTIES Oil Filter 14-0002 delivers reliable filtration to keep your engine...07120379- SKU:
- 07120379
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MODEL:
- PER-FORM
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- DROP-IN
$13.60 -
DRAG SPECIALTIES Oil Filter - Black - M8 14-0020BNU
DRAG SPECIALTIES
$12.55A quality oil filter is non-negotiable for engine longevity—it directly protects your crankshaft, bearings, and internal components from wear-accelerating contaminants. This Drag Specialties spin-on design delivers reliable filtration across most...07120641- SKU:
- 07120641
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- FEATURES:
- WITHOUT NUT
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- STYLE:
- M8
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- SPIN-ON
$12.55 -
DRAG SPECIALTIES Front Motor Mount - FLT 77078
DRAG SPECIALTIES
$65.67OEM motor mounts degrade under sustained heat and vibration, leading to excess engine movement and compromised driveline integrity. The DRAG SPECIALTIES Front Motor Mount for FLT models replaces that worn elastomer with a high-durometer urethane compound...09330133- SKU:
- 09330133
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PRODUCT NAME:
- MOUNT
- MOUNTING POSITION:
- FRONT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
$65.67Qty in Cart: 0Quantity:Price:$65.67Subtotal: -
DRAG SPECIALTIES Front Motor Mount - Dyna E28-0038
DRAG SPECIALTIES
$204.53Motor mounts are the foundation of drivetrain stability—worn or degraded mounts allow excessive engine movement that compromises handling, increases vibration transfer to the chassis, and accelerates wear on adjacent components. The DRAG Specialties...09330101- SKU:
- 09330101
- Availability:
- Ships Same Business Day
- Weight:
- 2.16 LBS
- BASE COLOR:
- BLACK
- MOUNTING POSITION:
- FRONT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- MOUNT
$204.53 -
DRAG SPECIALTIES Fuel Line Mini Clamp - Stainless Steel 2152
DRAG SPECIALTIES
$18.87Fuel line integrity is critical on any high-performance build, and securing your lines with quality clamps prevents leaks, vibration damage, and potential safety hazards. This stainless steel mini clamp from Drag Specialties offers reliable,...DS2152- SKU:
- DS2152
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- FITS HOSE SIZE METRIC:
- 9.5 MM
- COLOR/FINISH:
- STAINLESS STEEL
- BASE FINISH:
- NATURAL
- FITS HOSE SIZE IMPERIAL:
- 3/8'
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- CLAMP
- STYLE:
- MINI
- TYPE:
- HOSE
- UNITS:
- 10 PACK
$18.87 -
DRAG SPECIALTIES CONNECTING ROD ST 96/103 80041
DRAG SPECIALTIES
$557.51A connecting rod is the critical link between your piston and crankshaft—its strength and precision directly impact engine reliability, power delivery, and longevity. For big-displacement Harley-Davidson engines, the Drag Specialties ST 96/103 delivers...09230630- SKU:
- 09230630
- Availability:
- Ships Same Business Day
- Weight:
- 5.89 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CONNECTING ROD SET
- UNITS:
- SET
$557.51Qty in Cart: 0Quantity:Price:$557.51Subtotal: -
On Sale
COMETIC S&S Rocker Box Gasket Kit C9155
COMETIC
MSRP: $74.50Now: $67.05Was: $74.50Rocker box gaskets wear under constant thermal cycling and mechanical stress—premature failure leads to oil leakage, contamination, and potential engine damage. The COMETIC S&S Rocker Box Gasket Kit C9155 delivers OEM-quality sealing with premium...09341212- SKU:
- 09341212
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- FEATURES:
- FOR S&S DIE-CAST ROCKER BOXES
- PRODUCT NAME:
- GASKET KIT
- MATERIAL:
- STEEL
- TYPE:
- ROCKER BOX
- MODEL:
- EST
- RIDING STYLE:
- STREET
- UNITS:
- KIT
MSRP: $74.50Now: $67.05Was: $74.50 -
On Sale
COMETIC Head Gasket - 4.125" - S&S Super Sidewinder - .045" C9934
COMETIC
MSRP: $61.90Now: $55.71Was: $61.90A head gasket is the critical seal between your engine block and cylinder head—any failure here means catastrophic loss of compression, coolant mixing with oil, and complete engine shutdown. The COMETIC C9934 is engineered specifically for S&S Super...09340791- SKU:
- 09340791
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE IMPERIAL:
- 4.125'
- MATERIAL:
- VITON
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,045'
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,14 MM (0,045')
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- LAYERED STEEL
- BORE SIZE:
- 4,125'
- THICKNESS METRIC:
- 1.14 MM
- UNITS:
- PAIR
MSRP: $61.90Now: $55.71Was: $61.90 -
On Sale
COMETIC Manifold/Head Gasket - S&S C9223
COMETIC
Now: $13.32Was: $14.80A quality manifold/head gasket is critical for maintaining compression integrity and preventing exhaust leaks that compromise power output and efficiency. The COMETIC C9223 uses a proven Viton elastomer construction with stainless steel reinforcement to...09341661- SKU:
- 09341661
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- VITON
- UNITS:
- 4 PACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- TYPE:
- INTAKE MANIFOLD
Now: $13.32Was: $14.80Qty in Cart: 0Quantity:Price:Now: $13.32Was: $14.80Subtotal: -
JAMES GASKET Top End Gasket Kit - S&S 17040-92-SS
JAMES GASKET
$121.95A top-end rebuild demands precision gaskets and seals that won't fail under combustion pressure and thermal cycling. JAMES GASKET delivers OEM-quality components engineered to maintain compression, prevent oil weeping, and ensure reliable engine...20112097- SKU:
- 20112097
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BORE SIZE IMPERIAL:
- 3.500'
- THICKNESS METRIC:
- 1.14 MM
- UNITS:
- KIT
- THICKNESS IMPERIAL:
- 0,045'
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
$121.95Qty in Cart: 0Quantity:Price:$121.95Subtotal: -
JAMES GASKET Cylinder Base Gasket - S&S T124 JGI-16736-13
JAMES GASKET
$35.95A quality cylinder base gasket is critical to maintaining compression and preventing oil seepage in high-performance engines. The JAMES GASKET Cylinder Base Gasket for S&S T124 engines delivers reliable sealing under demanding conditions, ensuring your...09345979- SKU:
- 09345979
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- TYPE:
- CYLINDER BASE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$35.95Qty in Cart: 0Quantity:Price:$35.95Subtotal: -
JAMES GASKET Rocker Cover Kit - S&S 17042-92-SS
JAMES GASKET
$52.95A properly sealed rocker cover assembly is critical for maintaining crankcase ventilation and preventing oil leakage—two issues that compromise engine reliability and performance. The JAMES GASKET Rocker Cover Kit delivers precision-machined components...DS174501- SKU:
- DS174501
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
$52.95 -
JAMES GASKET Seal Kit - S&S XL/Panhead 27002-66-SS
JAMES GASKET
$20.95Intake seal degradation is one of the most common causes of air leaks, fuel mixture inconsistencies, and performance loss in S&S XL and Panhead engines. A quality seal kit eliminates vacuum leaks at critical junction points, restoring proper fuel...09350088- SKU:
- 09350088
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- UNITS:
- KIT
- APPLICATION:
- INTAKE MANIFOLD TO CARBURETOR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL KIT
$20.95 -
JAMES GASKET S&S Intake Seal - 1.88" 26995-86-D
JAMES GASKET
$27.30A precise intake seal is critical for maintaining proper air-fuel mixture control and preventing bypass leaks that compromise combustion efficiency. The JAMES GASKET S&S Intake Seal ensures a tight, reliable seal at the intake manifold, protecting your...09340548- SKU:
- 09340548
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- APPLICATION:
- INTAKE MANIFOLD
- PRODUCT NAME:
- SEAL
$27.30 -
JAMES GASKET Top End Gasket Kit - S&S 17040-04-SS
JAMES GASKET
$144.95A top-end rebuild demands precision-engineered gaskets that won't fail under extreme cylinder pressures and temperature swings. JAMES GASKET delivers OEM-quality sealing surfaces with the durability to handle repeated heat cycles without weeping or...09341590- SKU:
- 09341590
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE SIZE IMPERIAL:
- 4.000'
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- TYPE:
- TOP END
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
$144.95Qty in Cart: 0Quantity:Price:$144.95Subtotal:
