Harley Engine Gaskets and Kits
Harley Bike Gaskets & Kits at JJ Motorsports
Rebuild your Harley with premium gasket kits and seals from JJ Motorsports, featuring complete top-end, motor, and cam-install kits for leak-free performance on Milwaukee-Eight, Twin Cam, Evo, and Big Twin engines. These high-quality MLS, rubber, and metal gaskets ensure perfect sealing and long-term reliability.
Shop Feuling, Cometic, and James Gasket for proven sealing solutions. Explore related categories such as Harley engine for cams and lifters, or Harley for oil pumps and heads to complete your rebuild.
Top Harley Gaskets & Kits
- Feuling Top-End Cam Install Kit M8 2030 – Complete top-end gasket kit for Milwaukee-Eight; includes head, base, rocker, and pushrod seals.
- Cometic Complete Gasket Kit C9748F – Full engine gasket set with MLS head gaskets; fits Twin Cam 88/96/103 engines.
- James Gasket Motor Gasket Metal Base Rocker 17041-92-A – Metal rocker box base gasket set; OEM-style for Evo and Twin Cam rocker boxes.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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JAMES GASKET Oil Pump Gasket Cover 26258-68-D
JAMES GASKET
$14.70A leaking oil pump cover gasket doesn't just waste oil—it creates mess, invites contamination, and signals internal wear that demands immediate attention. JAMES GASKET's Oil Pump Gasket Cover delivers the OEM-quality seal you need to prevent seepage and...DS174720- SKU:
- DS174720
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- COVER
$14.70 -
JAMES GASKET Carb - Air Cleaner Gasket - XL/Big Twin 29058-77
JAMES GASKET
$7.70A properly sealed carburetor is fundamental to engine performance and fuel economy. Air leaks around your carb gasket introduce unmeasured fuel mixture, causing rough idle, hesitation, and wasted fuel. This JAMES GASKET carb air cleaner gasket delivers...DS174715- SKU:
- DS174715
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MOUNTING POSITION:
- AIR CLEANER TO CARBURETOR
- THICKNESS IMPERIAL:
- 0,030'
- THICKNESS METRIC:
- 0.80 MM
- TYPE:
- CARBURETOR
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- STYLE:
- AIR CLEANER
- THICKNESS:
- 0,80 MM (0,030')
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
$7.70 -
JAMES GASKET Bendix Manifold Gasket 27023-71
JAMES GASKET
$6.00A compromised intake manifold gasket leads to vacuum leaks, rough idle, and reduced engine efficiency—problems that compound quickly if left unaddressed. The JAMES GASKET Bendix Manifold Gasket 27023-71 delivers OEM-quality sealing without the OEM price...DS174710- SKU:
- DS174710
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR INTAKE
$6.00 -
JAMES GASKET Oil Pump Cover Gasket Big Twin 26257-50-A
JAMES GASKET
$16.60Oil seepage from the pump cover is one of the most common leak points on Big Twin engines, leading to chronic oil loss and potential engine damage if left unchecked. The JAMES GASKET Oil Pump Cover Gasket is engineered to provide a reliable, long-lasting...DS174690- SKU:
- DS174690
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
- STYLE:
- COVER
$16.60 -
JAMES GASKET Rocker Cover Gasket - Big Twin 17541-48-B
JAMES GASKET
$19.70A failing rocker cover gasket is an easy way to turn a clean engine bay into an oil-weeping mess. The JAMES GASKET Rocker Cover Gasket for Big Twin engines eliminates guesswork with precision engineering that seals reliably, even under high heat and...DS174660- SKU:
- DS174660
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- THICKNESS IMPERIAL:
- 0,031'
- UNITS:
- 10 PACK
- THICKNESS:
- 0,79 MM (0,031')
- TYPE:
- ROCKER COVER
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 0.79 MM
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
$19.70 -
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 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 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 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 -
JAMES GASKET Head Gasket with Silicon - 3-5/8" - .045" 16773-85-TS
JAMES GASKET
$59.20A quality head gasket is the foundation of cylinder sealing integrity—it's what stands between efficient combustion and catastrophic leak-down. The JAMES GASKET Head Gasket with Silicon delivers reliable, long-term compression retention on naturally...DS174500- SKU:
- DS174500
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE SIZE:
- 3,625'
- BORE SIZE IMPERIAL:
- 3.625'
- THICKNESS:
- 1,14 MM (0,045')
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- SILICONE
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 1.14 MM
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,045'
$59.20
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Engine Gaskets and Kits
- Compatibility: Ensure the kit fits your Harley's engine type (e.g., Milwaukee-Eight M8, Twin Cam 88/96/103, Evo, Big Twin) and model (e.g., FLHR Road King 1984-1998, FLST Heritage Softail 2006). Use the vehicle selector for year-specific matches, including bore sizes and applications to avoid sealing issues.
- Type of Use: For cam changes or top-end rebuilds, select install kits with ARP bolts; complete gasket sets suit full engine overhauls for leak-free performance in touring or street riding.
- Components and Upgrades: Choose kits with MLS head gaskets, Viton seals, AFM exhaust gaskets, ARP hardware, and O-rings. Focus on high-tech materials for heat dissipation, corrosion resistance, and reliable sealing.
- Brand and Quality: Opt for Feuling for cam install kits with Koyo bearings, Cometic for EST gasket sets with embossed steel, James Gasket for rocker/base gaskets, Vance & Hines for exhaust ports, or Drag Specialties for transmission boards. Prioritize USA-made quality for durability in extreme conditions.
- Installation and Cost: Kits are designed for DIY or professional rebuilds with included components like moly paste and Loctite. Prices range from $16.95 for exhaust gaskets to $356.95 for complete sets—factor in bore sizes and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models and engines do these gaskets and kits support? Kits support Big Twin, Twin Cam, Evo, M8, and models like Road King, Heritage Softail—use the year/make/model filter for compatibility, including bore sizes like 3.500" to 3.8125".
- How do high-tech materials improve sealing? Materials like MLS steel, Viton-coated, and AFM provide even heat dissipation, corrosion resistance, and leak-free performance for rebuilds.
- What is typically included in a cam install kit? Feuling kits include seals, bearings, ARP bolts, moly paste, Loctite, washers, and copper gaskets for complete cam changes.
- Are these kits suitable for top-end rebuilds? Yes, Cometic and James Gasket kits focus on top-end with head/base/rocker gaskets for reliable overhauls.
- What if a kit doesn't fit my Harley? Verify engine type, bore size, and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related engine parts? Yes—explore pistons/rings, cylinders/heads, bearings/seals, or full rebuild kits in the Harley engine category to complete your gasket upgrade.
