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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S&S CYCLE Gaskets - 3-5/8" - Shovelhead 930-0089
S&S CYCLE
$72.95Head gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick coating, Made in the U.S.A.09345017- SKU:
- 09345017
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE:
- 3,625'
- MATERIAL:
- COPPER
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 0.81 MM
- BORE SIZE IMPERIAL:
- 3.625'
- PRODUCT NAME:
- GASKET
- THICKNESS:
- 0,81 MM (0,032')
- THICKNESS IMPERIAL:
- 0,032'
- TYPE:
- CYLINDER HEAD
- UNITS:
- PAIR
$72.95 -
S&S CYCLE Base Gaskets - 3.625" - V2 930-0093
S&S CYCLE
$16.95Made in the U.S.A., Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out.09345019- SKU:
- 09345019
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,46 MM (0,018')
- THICKNESS IMPERIAL:
- 0,018'
- TYPE:
- CYLINDER BASE
- UNITS:
- PAIR
- BORE SIZE IMPERIAL:
- 3.625'
- FEATURES:
- STOCK BOLT PATTERN
- THICKNESS METRIC:
- 0.46 MM
$16.95 -
S&S CYCLE Rocker Box Gasket Kit 90-4049
S&S CYCLE
$91.95Includes all required gaskets and O-rings for both rocker boxesDS174301- SKU:
- DS174301
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FEATURES:
- 4-BOLT STYLE
- TYPE:
- ROCKER BOX
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- FEATURES:
- FOR '84 - '99 EVOLUTION-STYLE BIG TWIN
- PRODUCT NAME:
- GASKET KIT
$91.95 -
S&S CYCLE Gasket Kit - 4-1/8" 106-0964
S&S CYCLE
$225.95Made in the U.S.A.09345026- SKU:
- 09345026
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- TYPE:
- COMPLETE
- UNITS:
- KIT
- FEATURES:
- FOR '84 - '99 EVOLUTION-STYLE BIG TWIN
- BORE SIZE IMPERIAL:
- 4.125'
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
$225.95 -
S&S CYCLE Gasket Bowl - E/G 11-2386
S&S CYCLE
$8.95Made in the U.S.A.09345028- SKU:
- 09345028
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- STYLE:
- SUPER E
- STYLE:
- SUPER G
- UNITS:
- EACH
- TYPE:
- FLOAT BOWL
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
$8.95 -
DRAG SPECIALTIES Gasket Board - XL/EVO 0934-1667
DRAG SPECIALTIES
$112.22Complete four-color display features gaskets, seals and O-rings necessary to rebuild most XL Evolution motors, Mounts easily on any 1/8" or 1/4" peg board, Designed so that three 32" H x 48" W displays will fit on a single sheet of 4' x 8' pegboard,...09341667- SKU:
- 09341667
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DISPLAY BOARD
- UNITS:
- EACH
- TYPE:
- GASKET
$112.22Qty in Cart: 0Quantity:Price:$112.22Subtotal: -
COMETIC Head Gasket - Standard - .040" C9984
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...09340794- SKU:
- 09340794
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MATERIAL:
- LAYERED STEEL
- TYPE:
- CYLINDER HEAD
- THICKNESS IMPERIAL:
- 0,040'
- BORE SIZE:
- 3,500'
- BORE SIZE IMPERIAL:
- 3.500'
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 1.02 MM
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,02 MM (0,040')
$61.90 -
COMETIC Complete Gasket Kit - FL/FLH C9966
COMETIC
$190.00Every gasket in these kits uses the best materials possible for its intended application, Multi-Layer Steel (MLS) head gaskets, Steel Viton®-coated base gaskets, Blue Viton valve stem seals, Aluminum Foam Material (AFM) race-style exhaust gaskets,...09340816- SKU:
- 09340816
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- RIDING STYLE:
- STREET
- BORE SIZE:
- 3,437'
- MATERIAL:
- STEEL
- MATERIAL:
- VITON
- TYPE:
- COMPLETE
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3.437'
- PRODUCT NAME:
- GASKET KIT
$190.00Qty in Cart: 0Quantity:Price:$190.00Subtotal: -
COMETIC Trans Gasket - 5 Speed C9466
COMETIC
$86.05High quality, application specific materials give a long and reliable life, Kit includes all necessary gaskets, seals and O-rings needed for each application, Made in the U.S.A.09340821- SKU:
- 09340821
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- 5-SPEED
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
$86.05Qty in Cart: 0Quantity:Price:$86.05Subtotal: -
COMETIC Trans Gasket - 5 Speed C9467
COMETIC
$102.85High quality, application specific materials give a long and reliable life, Kit includes all necessary gaskets, seals and O-rings needed for each application, Made in the U.S.A.09340822- SKU:
- 09340822
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- STYLE:
- 5-SPEED
- UNITS:
- KIT
$102.85Qty in Cart: 0Quantity:Price:$102.85Subtotal: -
COMETIC Trans Gasket - FXD C9468
COMETIC
$56.65High quality, application specific materials give a long and reliable life, Kit includes all necessary gaskets, seals and O-rings needed for each application, Made in the U.S.A.09340823- SKU:
- 09340823
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- STYLE:
- 5-SPEED
$56.65Qty in Cart: 0Quantity:Price:$56.65Subtotal: -
COMETIC Trans Gasket - FXD C9640
COMETIC
$47.20High quality, application specific materials give a long and reliable life, Kit includes all necessary gaskets, seals and O-rings needed for each application, Made in the U.S.A.09340825- SKU:
- 09340825
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- TRANSMISSION
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
$47.20Qty in Cart: 0Quantity:Price:$47.20Subtotal: -
COMETIC Base Gasket - Evo - 4" - .010" C9871
COMETIC
$33.55Outer layers are embossed and coated on both sides with Viton to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes, MLS (Multi-Layer Steel) head gaskets promote an even torque load across the gasket...09340005- SKU:
- 09340005
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- RUBBER
- TYPE:
- CYLINDER BASE
- BORE SIZE IMPERIAL:
- 4.000'
- STYLE:
- STANDARD
- THICKNESS:
- 0,25 MM (0,010')
- THICKNESS IMPERIAL:
- 0,010'
- PRODUCT NAME:
- GASKET
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 0.25 MM
$33.55 -
COMETIC Head Gasket - 4"- .030" C9878
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...09340008- SKU:
- 09340008
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE:
- 4,000'
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 0.76 MM
- BORE SIZE IMPERIAL:
- 4.000'
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- VITON
- UNITS:
- PAIR
- THICKNESS:
- 0,76 MM (0,030')
- THICKNESS IMPERIAL:
- 0,030'
$61.90 -
COMETIC Head Gasket - 4"- .036" C9879
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...09340009- SKU:
- 09340009
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 0.91 MM
- UNITS:
- PAIR
- MATERIAL:
- LAYERED STEEL
- THICKNESS IMPERIAL:
- 0,036'
- BORE SIZE:
- 4,000'
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,91 MM (0,036')
- TYPE:
- CYLINDER HEAD
- BORE SIZE IMPERIAL:
- 4.000'
$61.90 -
COMETIC Cylinder Head Gasket C10167-045
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...09345926- SKU:
- 09345926
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE SIZE:
- 4,145'
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- VITON
- THICKNESS IMPERIAL:
- 0,045'
- THICKNESS METRIC:
- 1.14 MM
- BORE SIZE IMPERIAL:
- 4.145'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- 2 PACK
$61.90Qty in Cart: 0Quantity:Price:$61.90Subtotal: -
COMETIC Cylinder Head Gasket C10168
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...09345928- SKU:
- 09345928
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- THICKNESS IMPERIAL:
- 0,040'
- THICKNESS METRIC:
- 1.02 MM
- UNITS:
- 2 PACK
- BORE SIZE IMPERIAL:
- 4.205'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- BORE SIZE:
- 4,205'
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- VITON
- TYPE:
- CYLINDER HEAD
$61.90 -
COMETIC Cylinder Head Gasket C10168-030
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...09345929- SKU:
- 09345929
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- THICKNESS IMPERIAL:
- 0,030'
- UNITS:
- 2 PACK
- BORE SIZE IMPERIAL:
- 4.205'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 0.76 MM
- TYPE:
- CYLINDER HEAD
- BORE SIZE:
- 4,205'
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- VITON
$61.90Qty in Cart: 0Quantity:Price:$61.90Subtotal: -
COMETIC Cylinder Head Gasket C10169-030
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...09345932- SKU:
- 09345932
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 0.76 MM
- BORE SIZE IMPERIAL:
- 4.220'
- THICKNESS IMPERIAL:
- 0,030'
- UNITS:
- 2 PACK
- BORE SIZE:
- 4,220'
- MATERIAL:
- LAYERED STEEL
- MATERIAL:
- VITON
- TYPE:
- CYLINDER HEAD
$61.90Qty in Cart: 0Quantity:Price:$61.90Subtotal: -
COMETIC Airbox/Throttle Body Gasket C10176
COMETIC
$5.95Aluminum 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.09345936- SKU:
- 09345936
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- THICKNESS METRIC:
- 0.79 MM
- THICKNESS:
- 0,79 MM (0,031')
- THICKNESS IMPERIAL:
- 0,031'
- TYPE:
- THROTTLE BODY
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- AIRBOX
- UNITS:
- EACH
$5.95
