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
-
COMETIC Oil Pan Gasket - AFM C9265F
COMETIC
$36.70Aluminum Foamette Material gaskets feature an aluminum core and a chemically blown, compounded nitrile synthetic rubber coating that is bonded to the outside layer; do not require gasket sealer., Made in the U.S.A.09350218- SKU:
- 09350218
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0.060'
- TYPE:
- OIL PAN
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- TYPE:
- TRANSMISSION
$36.70Qty in Cart: 0Quantity:Price:$36.70Subtotal: -
COMETIC Complete Engine/Primary Gasket Set C10269
COMETIC
$340.15Multi-layer steel head gaskets. Steel Viton-coated base gaskets. Blue Viton valve stem seals., Aluminum foam material race-style exhaust gaskets., Made in the U.S.A.09346331- SKU:
- 09346331
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- RIDING STYLE:
- STREET
- TYPE:
- COMPLETE
- UNITS:
- KIT
- BORE SIZE:
- 3,937'
- PRODUCT NAME:
- GASKET
$340.15 -
COMETIC Motor Gasket Kit - M8 C10256
COMETIC
$267.70EST (Extreme Sealing Technology) gasket kits include embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material, Head gasket material allows heat to be drawn away from the combustion ring and dissipated evenly...09346328- SKU:
- 09346328
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- BORE SIZE IMPERIAL:
- 4.250'
- RIDING STYLE:
- STREET
- BORE SIZE:
- 4,250'
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$267.70Qty in Cart: 0Quantity:Price:$267.70Subtotal: -
COMETIC Motor Gasket Kit - M8 C10252
COMETIC
$259.30EST (Extreme Sealing Technology) gasket kits include embossed stainless steel head, base and rocker gaskets covered with a proprietary rubber material, Head gasket material allows heat to be drawn away from the combustion ring and dissipated evenly...09346327- SKU:
- 09346327
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE SIZE IMPERIAL:
- 4.075'
- RIDING STYLE:
- STREET
- TYPE:
- COMPLETE
- BORE SIZE:
- 4,075'
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$259.30 -
COMETIC Exhaust Gasket - Evo/Twin Cam/M8 C9247
COMETIC
$46.00Gasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket providing precise, high-temperature...09346318- SKU:
- 09346318
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- RIDING STYLE:
- STREET
- TYPE:
- EXHAUST
- MATERIAL:
- GRAPHITE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- MATERIAL:
- STAINLESS STEEL
$46.00 -
COMETIC Transmission/Engine Gasket C10214
COMETIC
$12.95High-quality products for long-term reliability, Manufactured from premium fuel-resistant materials that will not creep, crack or become brittle., Made in the U.S.A.09345981- SKU:
- 09345981
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- TRANSMISSION
$12.95 -
COMETIC Cylinder Head Gasket C10191
COMETIC
$61.90Center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements, Outer layers are embossed and coated on both sides with Viton to meet the demands of a variety of harsh sealing environments, load...09345951- SKU:
- 09345951
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- THICKNESS IMPERIAL:
- 0,040'
- MATERIAL:
- LAYERED STEEL
- TYPE:
- CYLINDER HEAD
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 1.02 MM
- UNITS:
- 2 PACK
- BORE SIZE:
- 4,250'
- BORE SIZE IMPERIAL:
- 4.250'
$61.90Qty in Cart: 0Quantity:Price:$61.90Subtotal: -
COMETIC Cylinder Head Gasket C10182-030
COMETIC
$61.90Center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements, Outer layers are embossed and coated on both sides with Viton to meet the demands of a variety of harsh sealing environments, load...09345949- SKU:
- 09345949
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BORE SIZE IMPERIAL:
- 4.320'
- RIDING STYLE:
- STREET
- MATERIAL:
- LAYERED STEEL
- PRODUCT NAME:
- GASKET
- UNITS:
- 2 PACK
- BORE SIZE:
- 4,320'
- THICKNESS IMPERIAL:
- 0,030'
- THICKNESS METRIC:
- 0.76 MM
- TYPE:
- CYLINDER HEAD
$61.90 -
COMETIC Cylinder Head/Base Gasket C10181-HB
COMETIC
$79.75Kits feature Multi-Layer Steel (MLS) gaskets; feature two outer Viton®-coated embossed spring steel layers with an inner steel layer to provide additional support, Made in the U.S.A.09345945- SKU:
- 09345945
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- THICKNESS IMPERIAL:
- 0,014'
- THICKNESS IMPERIAL:
- 0,040'
- THICKNESS METRIC:
- 1.02 MM
- BORE SIZE:
- 4,250'
- MATERIAL:
- LAYERED STEEL
- THICKNESS METRIC:
- 0.36 MM
- THICKNESS:
- 0,36 MM (0,014')
- TYPE:
- CYLINDER HEAD
- BORE SIZE IMPERIAL:
- 4.250'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,02 MM (0,040')
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
$79.75Qty in Cart: 0Quantity:Price:$79.75Subtotal: -
COMETIC Upper Rocker Box Gasket C10179-2
COMETIC
$26.20Viton gaskets feature a stainless steel core with a .001"-thick coating of Viton rubber on both sides., Made in the U.S.A.09345942- SKU:
- 09345942
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- MATERIAL:
- VITON
- MOUNTING POSITION:
- UPPER
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- UNITS:
- 2 PACK
- THICKNESS:
- 0,51 MM (0,020')
$26.20 -
COMETIC Upper Rocker Box Gasket C10179
COMETIC
$67.90Viton gaskets feature a stainless steel core with a .001"-thick coating of Viton rubber on both sides., Made in the U.S.A.09345941- SKU:
- 09345941
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MATERIAL:
- VITON
- TYPE:
- ROCKER BOX
- THICKNESS IMPERIAL:
- 0,020'
- THICKNESS METRIC:
- 0.51 MM
- MOUNTING POSITION:
- UPPER
- THICKNESS:
- 0,51 MM (0,020')
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$67.90 -
COMETIC Cylinder Base Gasket Pair C10177-020
COMETIC
$33.55Center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements, Outer layers are embossed and coated on both sides with Viton to meet the demands of a variety of harsh sealing environments, load...09345939- SKU:
- 09345939
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MATERIAL:
- STEEL
- THICKNESS METRIC:
- 0.51 MM
- UNITS:
- 2 PACK
- MATERIAL:
- VITON
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER BASE
- THICKNESS IMPERIAL:
- 0,020'
$33.55 -
COMETIC Cylinder Head Gasket C10167
COMETIC
$61.90Center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements, Outer layers are embossed and coated on both sides with Viton to meet the demands of a variety of harsh sealing environments, load...09345923- SKU:
- 09345923
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- LAYERED STEEL
- TYPE:
- CYLINDER HEAD
- BORE SIZE IMPERIAL:
- 4.145'
- MATERIAL:
- VITON
- THICKNESS IMPERIAL:
- 0,040'
- BORE SIZE:
- 4,145'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 1.02 MM
- UNITS:
- 2 PACK
$61.90Qty in Cart: 0Quantity:Price:$61.90Subtotal: -
COMETIC Cylinder Head Gasket C10165
COMETIC
$61.90Center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements, Outer layers are embossed and coated on both sides with Viton to meet the demands of a variety of harsh sealing environments, load...09345918- SKU:
- 09345918
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET
- BORE SIZE IMPERIAL:
- 4.000'
- THICKNESS IMPERIAL:
- 0,040'
- THICKNESS METRIC:
- 1.02 MM
- UNITS:
- 2 PACK
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- VITON
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE:
- 4,000'
- TYPE:
- CYLINDER HEAD
$61.90 -
COMETIC Cylinder/Base Gasket C10164-HB-030
COMETIC
$81.85Kits feature Multi-Layer Steel (MLS) gaskets; feature two outer Viton®-coated embossed spring steel layers with an inner steel layer to provide additional support, Made in the U.S.A.09345917- SKU:
- 09345917
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MATERIAL:
- LAYERED STEEL
- RIDING STYLE:
- OFF-ROAD
- THICKNESS METRIC:
- 0.76 MM
- TYPE:
- CYLINDER BASE
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- VITON
- THICKNESS IMPERIAL:
- 0,030'
- BORE SIZE:
- 3,937'
- PRODUCT NAME:
- GASKET
- UNITS:
- 2 PACK
- BORE SIZE IMPERIAL:
- 3.937'
- THICKNESS:
- 0,76 MM (0,030')
$81.85 -
COMETIC Cylinder Head Gasket C10164-030
COMETIC
$61.90Center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements, Outer layers are embossed and coated on both sides with Viton to meet the demands of a variety of harsh sealing environments, load...09345916- SKU:
- 09345916
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- THICKNESS METRIC:
- 0.76 MM
- TYPE:
- CYLINDER HEAD
- BORE SIZE IMPERIAL:
- 3.937'
- THICKNESS IMPERIAL:
- 0,030'
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- VITON
- BORE SIZE:
- 3,937'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- 2 PACK
$61.90 -
COMETIC Primary Gasket C10145F1
COMETIC
$33.55Cometic's proprietary AFM (Aluminum Foamette Material) gaskets feature an aluminum core with a chemically blown, compounded nitrile synthetic rubber bonded to the outside, Gaskets have resistance to temperatures of more than 2500°F, Have an 85%...09345059- SKU:
- 09345059
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0.060'
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- THICKNESS METRIC:
- 1.52 MM
- THICKNESS:
- 1,52 MM (0,060')
- TYPE:
- PRIMARY COVER
$33.55 -
COMETIC Derby Gasket C10140F1
COMETIC
$10.95Derby cover gasket for Harley Davidson models09345057- SKU:
- 09345057
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- CLUTCH COVER
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- DERBY COVER
- UNITS:
- EACH
$10.95 -
COMETIC Inner Push Pins Gasket C10122
COMETIC
$16.75Properly holds inner primary (OEM #34934-06) and transmission to engine case gasket (OEM #35607-06) for proper installation, Prevents gasket from twisting while positioning components, Made in the U.S.A.09344742- SKU:
- 09344742
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- TYPE:
- HOLDING PIN
- RIDING STYLE:
- STREET
$16.75 -
COMETIC Starter Motor Gasket C9333
COMETIC
$4.20Made in the U.S.A.09344683- SKU:
- 09344683
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,31 MM (0,012')
- THICKNESS IMPERIAL:
- 0,012'
- MATERIAL:
- FIBER
- THICKNESS METRIC:
- 0.31 MM
- TYPE:
- CAM COVER
- UNITS:
- 10 PACK
$4.20
