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 Keihin Manifold Gasket - Big Twin 27077-78
JAMES GASKET
$9.50A deteriorating intake manifold gasket will kill your Big Twin's reliability and fuel atomization, leading to lean conditions, heat damage, and potential air leaks. The JAMES GASKET Keihin Manifold Gasket kit gives you OEM-quality seals designed...DS174492- SKU:
- DS174492
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- TYPE:
- INTAKE MANIFOLD
- UNITS:
- 10 PACK
$9.50 -
On Sale
JAMES GASKET Upper Rocker Cork - XL 17354-86
JAMES GASKET
Now: $19.00Was: $45.60A properly sealed upper rocker cover is non-negotiable for keeping oil where it belongs—inside your engine. This JAMES GASKET cork gasket combines proven materials with precision engineering to deliver a leak-free seal that holds up under sustained heat...DS174484- SKU:
- DS174484
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- PRODUCT NAME:
- GASKET
- MOUNTING POSITION:
- UPPER
- UNITS:
- 5 PACK
- MATERIAL:
- CORK
Now: $19.00Was: $45.60 -
JAMES GASKET Lower Rocker Cork - XL 17353-86
JAMES GASKET
$45.60A properly sealed rocker cover gasket is fundamental to preventing oil leakage and maintaining engine cleanliness—two factors that directly impact long-term reliability and performance. The JAMES GASKET Lower Rocker Cork combines proven elastomer sealing...DS174483- SKU:
- DS174483
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MOUNTING POSITION:
- LOWER
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- UNITS:
- 5 PACK
- PRODUCT NAME:
- GASKET
- MATERIAL:
- CORK
$45.60 -
JAMES GASKET Oil Pump Body Gasket - Big Twin 26245-41
JAMES GASKET
$14.00Oil seepage from your pump body isn't just messy—it's a sign of gasket failure that can lead to inadequate lubrication and catastrophic engine damage. The JAMES GASKET Oil Pump Body Gasket is engineered to provide a reliable seal on Big Twin engines,...DS174480- SKU:
- DS174480
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- STYLE:
- BODY
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
$14.00 -
JAMES GASKET Rear Base Gasket - FL/FX 16777-63
JAMES GASKET
$16.60A leaking rear base gasket compromises engine integrity and creates ongoing maintenance headaches. The JAMES GASKET Rear Base Gasket eliminates the need for gasket sealer, delivering a reliable, factory-quality seal that holds up to repeated heat cycles...DS174479- SKU:
- DS174479
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- THICKNESS METRIC:
- 0.81 MM
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,032'
- TYPE:
- CYLINDER BASE
$16.60 -
JAMES GASKET Rocker Arm Cover Gasket 17541-48-A
JAMES GASKET
$27.50A rocker arm cover gasket is your first line of defense against oil seepage that compromises engine cleanliness and performance. When factory gaskets deteriorate or fail, oil weeps onto your engine bay, attracting dirt and potentially fouling spark plug...DS174470- SKU:
- DS174470
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,062'
- THICKNESS METRIC:
- 1.60 MM
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,60 MM (0,062')
- TYPE:
- ROCKER COVER
- UNITS:
- 10 PACK
$27.50 -
JAMES GASKET Derby Cover Gasket Silicon - Big Twin 25416-70-X
JAMES GASKET
$55.40A leaking derby cover gasket will compromise your engine's appearance and allow oil seepage that invites corrosion and debris accumulation. The James Gasket Derby Cover Gasket in silicon delivers a reliable, long-lasting seal engineered to prevent these...DS174457- SKU:
- DS174457
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- SILICONE
- UNITS:
- 10 PACK
- FEATURES:
- BEADED
- RIDING STYLE:
- STREET
- STYLE:
- PRIMARY
- THICKNESS IMPERIAL:
- 0,062'
- THICKNESS METRIC:
- 1.60 MM
- TYPE:
- DERBY COVER
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- THICKNESS:
- 1,60 MM (0,062')
$55.40 -
JAMES GASKET Starter Housing Gasket 60559-80
JAMES GASKET
$13.90A leaking starter housing gasket compromises engine reliability and can lead to costly oil seepage and potential starter failure. The JAMES GASKET Starter Housing Gasket 60559-80 provides a precision seal that maintains crankcase integrity and ensures...DS174443- SKU:
- DS174443
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- STREET
- TYPE:
- STARTER HOUSING
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
$13.90 -
JAMES GASKET Starter Housing to Trans Gasket 31321-80
JAMES GASKET
$15.60A quality starter housing to transmission gasket is critical for preventing fluid seepage and maintaining proper engine bay cleanliness. This JAMES GASKET OEM-specification gasket ensures a reliable seal between your starter housing and transmission,...DS174442- SKU:
- DS174442
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- STREET
- TYPE:
- STARTER HOUSING
- MOUNTING POSITION:
- MIDDLE
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
$15.60 -
On Sale
JAMES GASKET Electric Start Hole Gasket 60518-65
JAMES GASKET
Now: $5.00Was: $11.00A properly sealed electric start hole is critical to maintaining crankcase integrity and preventing oil seepage that compromises engine performance and longevity. The JAMES GASKET Electric Start Hole Gasket 60518-65 delivers a precision fit that...DS174440- SKU:
- DS174440
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- TYPE:
- STARTER HOUSING
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
Now: $5.00Was: $11.00 -
JAMES GASKET Distributor Base Gasket - Big Twin 32521-36
JAMES GASKET
$5.80A compromised distributor base gasket leads to oil leaks, ignition timing issues, and potential engine damage on your Big Twin. The JAMES GASKET Distributor Base Gasket uses advanced MicroPore technology to deliver a reliable, long-lasting seal that...DS174436- SKU:
- DS174436
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- CIRCUIT BREAKER COVER
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- DISTRIBUTOR BASE
- UNITS:
- 10 PACK
$5.80 -
JAMES GASKET Point Cover Gasket 32591-80
JAMES GASKET
$7.10A leaking point cover gasket compromises your Shovelhead's reliability and leaves oil residue on your cases—a clear sign it's time for replacement. JAMES gaskets are engineered to OEM specifications, ensuring a proper seal that keeps oil where it belongs...DS174435- SKU:
- DS174435
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- TYPE:
- CIRCUIT BREAKER COVER
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$7.10 -
JAMES GASKET Oil Pump Body to Motor Gasket - 80" 26276-92
JAMES GASKET
$12.00An engine oil leak at the pump-to-motor junction can compromise lubrication efficiency and lead to costly damage. The JAMES GASKET Oil Pump Body to Motor Gasket ensures a reliable seal, maintaining optimal oil pressure and protecting your engine's...DS174432- SKU:
- DS174432
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
$12.00 -
JAMES GASKET Oil Pump Body to Motor Gasket - 80" 26273-92
JAMES GASKET
$12.00A properly sealed oil pump body is critical to maintaining consistent oil pressure and preventing leaks that compromise engine performance. This JAMES GASKET oil pump body to motor gasket ensures a precision seal between your pump and motor block,...DS174431- SKU:
- DS174431
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
$12.00 -
JAMES GASKET Inspection Cover Gasket - FL/FX 60567-65
JAMES GASKET
$12.00Inspection cover gaskets are critical sealing components that prevent oil seepage and contamination at your engine's access points. A failed or deteriorated gasket can lead to slow oil weeps that accumulate dirt and moisture, compromising engine...DS174430- SKU:
- DS174430
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- THICKNESS METRIC:
- 0.81 MM
- TYPE:
- INSPECTION COVER
- PRODUCT NAME:
- GASKET
- STYLE:
- PRIMARY
- THICKNESS:
- 0,81 MM (0,032')
- THICKNESS IMPERIAL:
- 0,032'
$12.00 -
JAMES GASKET Oil Pump Body Gasket - Big Twin 26273-80AM
JAMES GASKET
$19.30Oil leaks compromise engine efficiency and create costly maintenance headaches—a quality gasket is your first line of defense against seepage that degrades performance. The JAMES GASKET Oil Pump Body Gasket is engineered to seal critical pressure points...DS174429- SKU:
- DS174429
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- MYLAR
- RIDING STYLE:
- STREET
- STYLE:
- BODY
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
$19.30 -
JAMES GASKET Oil Pump Cover Gasket - Big Twin 26258-68-B
JAMES GASKET
$19.30A leaking oil pump cover gasket can turn a routine ride into an expensive engine failure. This JAMES GASKET replacement seals the gap between your oil pump and cover, preventing oil seepage that compromises lubrication and cleanliness. For Big Twin...DS174428- SKU:
- DS174428
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- MYLAR
- STYLE:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
- PRODUCT NAME:
- GASKET
$19.30 -
JAMES GASKET Oil Pump Gasket - Big Twin 26246-68-A
JAMES GASKET
$16.83An oil pump gasket is a critical sealing component that prevents oil leakage at the pump housing—neglecting this maintenance item can lead to oil starvation, engine damage, and costly repairs. JAMES GASKET's Big Twin gasket is engineered to exact OEM...DS174427- SKU:
- DS174427
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- TYPE:
- OIL PUMP
- UNITS:
- 10 PACK
- MATERIAL:
- MYLAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- STYLE:
- BODY
$16.83 -
JAMES GASKET Oil Pump Cap Washer - FL 26231-78
JAMES GASKET
$11.10A degraded or missing oil pump cap washer compromises your engine's sealing integrity and can lead to oil leakage, contamination, and pressure loss under race or road conditions. JAMES GASKET's OEM-specification washer restores proper sealing at the oil...DS174426- SKU:
- DS174426
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- TEFLON
- PRODUCT NAME:
- WASHER
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TYPE:
- OIL PUMP CAP
$11.10 -
JAMES GASKET Felt Pad - Panhead 17507-48
JAMES GASKET
$32.90Rocker cover gasket leaks compromise engine aesthetics and can lead to oil seepage that attracts dirt and debris. These OEM-specification felt pads restore a proper seal between your rocker covers and cylinder head, eliminating weeping and maintaining...DS174425- SKU:
- DS174425
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- UNITS:
- 10 PACK
- TYPE:
- ROCKER COVER
- RIDING STYLE:
- STREET
- MATERIAL:
- FELT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET
$32.90
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.
