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
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JAMES GASKET Oil Pan Gasket - Dyna 26072-99
JAMES GASKET
$49.50A leaking oil pan gasket compromises engine efficiency and creates costly cleanup headaches. JAMES GASKET's OEM-quality replacement eliminates seepage at the source, ensuring your Dyna maintains proper oil containment and system integrity. This is...DS174550- SKU:
- DS174550
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL PAN
- FEATURES:
- BEADED
$49.50 -
JAMES GASKET Pan Gasket Silicon - FXD 26072-90-X
JAMES GASKET
$29.20A leaking oil pan gasket compromises engine sealing and wastes precious oil—exactly what you don't need during critical rides or race season. The JAMES GASKET Pan Gasket Silicon delivers reliable, long-lasting sealing for FXD models without the guesswork...DS174549- SKU:
- DS174549
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- DISPLACEMENT:
- 1340 CC
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL PAN
- FEATURES:
- BEADED
$29.20 -
JAMES GASKET End Cover Gasket Silicon - 5 Speed 36801-87-X
JAMES GASKET
$17.30A leaking end cover gasket doesn't just waste oil—it compromises engine sealing integrity and creates mess on your engine bay. The JAMES GASKET End Cover Gasket Silicon is engineered to provide a reliable, long-lasting seal on 5-speed transmissions,...DS174539- SKU:
- DS174539
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH RELEASE
- UNITS:
- 5 PACK
- PRODUCT NAME:
- GASKET
$17.30 -
JAMES GASKET Main Drive Gear Seal 35230-39DL
JAMES GASKET
$9.95A failing main drive gear seal is a silent killer—it allows oil to seep past the shaft, leading to inadequate lubrication, gear wear, and catastrophic drivetrain failure. The JAMES GASKET Main Drive Gear Seal 35230-39DL is engineered for precision...DS174538- SKU:
- DS174538
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- APPLICATION:
- MAIN DRIVE GEAR
- RIDING STYLE:
- STREET
- APPLICATION:
- TRANSMISSION
- PRODUCT NAME:
- SEAL
- UNITS:
- EACH
$9.95 -
JAMES GASKET Rubber Pushrod Kit - Big Twin 17955-48-FLR
JAMES GASKET
$13.95A cam change or engine rebuild demands precision—using mismatched or worn pushrod seals compromises oil containment and engine reliability. The JAMES GASKET Rubber Pushrod Kit eliminates guesswork by bundling all necessary seals and O-rings in one...DS174536- SKU:
- DS174536
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
- APPLICATION:
- PUSHROD COVER
- MATERIAL:
- RUBBER
$13.95 -
JAMES GASKET Large Pushrod Rubber 17955-48-A
JAMES GASKET
$82.30Pushrod sealing integrity directly impacts your engine's oil pressure and performance consistency. A worn or damaged pushrod rubber compromises gasket effectiveness, leading to leaks that can degrade horsepower and engine longevity. The JAMES GASKET...DS174535- SKU:
- DS174535
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- PUSHROD COVER
- RIDING STYLE:
- STREET
- UNITS:
- 100 PACK
$82.30 -
JAMES GASKET Rocker Cover Metal Gasket - Silicon 17540-99-X
JAMES GASKET
$50.95A leaking rocker cover gasket compromises engine bay cleanliness and can mask more serious internal issues. The JAMES GASKET Rocker Cover Metal Gasket delivers a reliable, long-lasting seal using a proven steel-and-elastomer construction that withstands...DS174533- SKU:
- DS174533
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- THICKNESS METRIC:
- 0.51 MM
- MATERIAL:
- STEEL
- TYPE:
- ROCKER COVER
- UNITS:
- PAIR
- FEATURES:
- BEADED
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,51 MM (0,020')
- THICKNESS IMPERIAL:
- 0,020'
- PRODUCT NAME:
- GASKET
$50.95 -
JAMES GASKET Motor Gasket - Metal - Base/Rocker 17041-92-A
JAMES GASKET
$121.95A complete Panhead engine rebuild demands precision gasket sealing at every interface—this JAMES GASKET kit eliminates the guesswork by supplying every gasket, oil seal, and O-ring your motor needs in one package. Rather than sourcing components...DS174532- SKU:
- DS174532
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- COMPLETE
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.500'
- TYPE:
- MOTOR
- UNITS:
- KIT
$121.95 -
JAMES GASKET OIl Pump Kit - XL 91-XL
JAMES GASKET
$16.95A worn or failing oil pump compromises engine lubrication, risking catastrophic bearing damage and costly downtime. The JAMES GASKET Oil Pump Kit – XL 91-XL gives you OEM-quality replacement components to fully rebuild and rebush your pump, restoring...DS174531- SKU:
- DS174531
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- OIL PUMP
- RIDING STYLE:
- STREET
$16.95 -
JAMES GASKET Tail Lamp Lens Gasket 68027-90
JAMES GASKET
$24.30A compromised tail lamp lens gasket allows moisture and debris to infiltrate your lighting assembly, leading to corrosion, electrical failures, and failed inspections. The JAMES GASKET 68027-90 delivers a factory-spec replacement that restores a proper...DS174530- SKU:
- DS174530
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TAIL LAMP LENS
- UNITS:
- 5 PACK
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$24.30 -
JAMES GASKET Turn Signal Lens Gasket - FL 68521-63-A
JAMES GASKET
$19.50Turn signal lens gaskets are critical sealing components that prevent water intrusion and oxidation damage to your lighting assembly. A failing gasket compromises both safety and appearance, allowing moisture to fog lenses and corrode internal reflectors...DS174529- SKU:
- DS174529
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- TURN SIGNAL LENS
- UNITS:
- 10 PACK
$19.50 -
JAMES GASKET Turn Signal Lens Gasket - FX 68481-73
JAMES GASKET
$15.50Proper turn signal lens sealing is critical to prevent moisture intrusion, corrosion, and electrical failure in your lighting assembly. This OEM-specification gasket ensures a watertight seal between your lens and housing, maintaining visibility and...DS174528- SKU:
- DS174528
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- TYPE:
- TURN SIGNAL LENS
- RIDING STYLE:
- STREET
$15.50 -
JAMES GASKET Tail Lamp Mount Gasket - XL 68123-73
JAMES GASKET
$10.70A failed tail lamp gasket compromises both safety and aesthetics—water intrusion corrodes your electrical connections and creates costly short circuits. The JAMES GASKET XL 68123-73 delivers OEM-grade sealing reliability, preventing moisture damage and...DS174527- SKU:
- DS174527
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TAIL LAMP MOUNTING
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- REAR
- UNITS:
- 10 PACK
$10.70 -
JAMES GASKET Oil Tank Line Seal - XLH 63529-50
JAMES GASKET
$24.40Oil tank line seals are critical to preventing leaks that compromise both performance and engine cleanliness on XLH models. A degraded or missing seal allows oil seepage into the crankcase breather system, leading to messy leaks and potential carburetor...DS174525- SKU:
- DS174525
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- OIL LINE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
$24.40 -
JAMES GASKET Oil Line Feed Tube Rubber Seal 63525-92
JAMES GASKET
$26.10A compromised oil line seal can lead to costly leaks, reduced system pressure, and potential engine damage—making a quality replacement essential for any serious build or maintenance routine. The JAMES GASKET Oil Line Feed Tube Rubber Seal is engineered...DS174524- SKU:
- DS174524
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- OIL LINE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL
- UNITS:
- 10 PACK
$26.10 -
JAMES GASKET Transmission Oil Spout - FLT 62432-93
JAMES GASKET
$34.70Transmission fluid maintenance is critical to engine longevity, and a quality oil spout eliminates mess, spillage, and cross-contamination during service intervals. The JAMES GASKET Transmission Oil Spout is engineered for reliable, leak-free fluid...DS174520- SKU:
- DS174520
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL FILLER
$34.70 -
JAMES GASKET Left Fuel Cap Gasket 61116-65
JAMES GASKET
$16.50A degraded fuel cap gasket compromises your fuel system's integrity, risking fuel leakage and vapor escape that affects performance and safety. The JAMES GASKET Left Fuel Cap Gasket restores a reliable seal at the source, preventing fuel loss and...DS174518- SKU:
- DS174518
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MOUNTING POSITION:
- LEFT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- TYPE:
- FUEL CAP
- STYLE:
- LEFT
$16.50 -
JAMES GASKET Thin Fuel Cap Gasket 61114-48
JAMES GASKET
$16.50A fuel cap gasket might seem like a minor component, but it's critical for maintaining fuel system integrity and preventing vapor leaks that compromise performance and emissions compliance. A worn or degraded gasket can lead to fuel seepage, check engine...DS174517- SKU:
- DS174517
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- RIDING STYLE:
- STREET
- TYPE:
- FUEL CAP
- PRODUCT NAME:
- GASKET
- STYLE:
- THIN
- UNITS:
- 10 PACK
$16.50 -
JAMES GASKET Gas Cap O-Ring 61109-85-C
JAMES GASKET
$28.50A degraded gas cap seal compromises fuel system integrity and invites fuel vapor leaks that can trigger check engine lights and failed emissions tests. The JAMES GASKET Gas Cap O-Ring restores a reliable, pressure-tight seal on your fuel door,...DS174515- SKU:
- DS174515
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- APPLICATION:
- FUEL CAP
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- PRODUCT NAME:
- O-RING
$28.50 -
JAMES GASKET Timing Gear Cover - Big Twin 25225-36-C
JAMES GASKET
$29.10A leaking cam chest gasket compromises engine reliability and creates a messy, unprofessional appearance in your engine bay. The JAMES GASKET Timing Gear Cover is engineered to seal the critical interface between your cam chest and cover, preventing oil...DS174510- SKU:
- DS174510
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,51 MM (0,020')
- TYPE:
- CAM COVER
$29.10
