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
-
JAMES GASKET Keihin Manifold Gasket - Big Twin 27077-78
JAMES GASKET
$9.50Kits contain carb-to-intake seal and two intake-to-cylinder head sealsDS174492- 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: $29.40Made from a solid steel sheet coated on two sides with a high-temperature elastomer. Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal coating fills in minor imperfections in the flanges and provides...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: $29.40 -
JAMES GASKET Lower Rocker Cork - XL 17353-86
JAMES GASKET
$45.60Made from a solid steel sheet coated on two sides with a high-temperature elastomer. Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal coating fills in minor imperfections in the flanges and provides...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
$14.00JAMES GASKET Oil Pump Body Gasket - Big TwinDS174480- 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
$16.60Require no gasket sealer, Made in the U.S.A.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
$27.50Made from a solid steel sheet coated on two sides with a high-temperature elastomer. Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal coating fills in minor imperfections in the flanges and provides...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
$55.40Latest additions to our line of high-quality genuine James gaskets, seals and O-rings, Cover seals are a seal, not a gasket, Cover seals are molded rubber, beaded oil seals with metal inserts and work with all inspection and derby covers; fit billet,...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
$13.90Made in the U.S.A.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
$15.60Made in the U.S.A.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
$15.60Qty in Cart: 0Quantity:Price:$15.60Subtotal: -
On Sale
JAMES GASKET Electric Start Hole Gasket 60518-65
JAMES GASKET
Now: $5.00Was: $9.90Made in the U.S.A.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: $9.90 -
JAMES GASKET Distributor Base Gasket - Big Twin 32521-36
JAMES GASKET
$5.80Flexible paper gasket product line utilized the latest in gasket paper technology called MicroPore., These gaskets exhibit exceptional fluid resistance and sealability in a wide range of applications and flange conditions., With a a reduced pore size,...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
$7.10Replacement point cover gaskets for Shovelhead cam chestDS174435- 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
$12.00JAMES GASKET Oil Pump Body to Motor Gasket - 80"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
$12.00JAMES GASKET Oil Pump Body to Motor Gasket - 80"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
$12.00Latest additions to our line of high-quality genuine James gaskets, seals and O-rings, Cover seals are a seal, not a gasket, Cover seals are molded rubber, beaded oil seals with metal inserts and work with all inspection and derby covers; fit billet,...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
$19.30JAMES GASKET Oil Pump Body Gasket - Big TwinDS174429- 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
$19.30JAMES GASKET Oil Pump Cover Gasket - Big TwinDS174428- 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
$16.83JAMES GASKET Oil Pump Gasket - Big TwinDS174427- 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
$11.10JAMES GASKET Oil Pump Cap Washer - FLDS174426- 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
$32.90Replacement felt pads for mounting rocker covers., Made in the U.S.A.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.
