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 Oil Spout Gasket - FXD 62423-90
JAMES GASKET
$17.70Made in the U.S.A.DS174879- SKU:
- DS174879
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
- PRODUCT NAME:
- GASKET
- TYPE:
- OIL FILLER
$17.70 -
JAMES GASKET Mainshaft Oil Seal Cork 35231-36
JAMES GASKET
$11.70JAMES GASKET Mainshaft Oil Seal CorkDS174892- SKU:
- DS174892
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- MAINSHAFT
- UNITS:
- 10 PACK
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- STREET
$11.70 -
JAMES GASKET Oil Pump Cover O-ring 10966
JAMES GASKET
$5.90Made in the U.S.A.09346488- SKU:
- 09346488
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- O-RING
- TYPE:
- OIL PUMP COVER
- UNITS:
- EACH
$5.90 -
COMETIC Complete Gasket Kit - Evo C9846F
COMETIC
$356.95Every 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,...09340799- SKU:
- 09340799
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- BORE SIZE:
- 3,500'
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MATERIAL:
- VITON
- THICKNESS METRIC:
- 0.76 MM
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,030'
- BORE SIZE IMPERIAL:
- 3.500'
- UNITS:
- KIT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- COMPLETE
$356.95 -
COMETIC Motor Gasket Kit - 1200 XL - .030" C9855F
COMETIC
$202.60Every 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,...09340800- SKU:
- 09340800
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- BORE SIZE IMPERIAL:
- 3.500'
- MATERIAL:
- STEEL
- TYPE:
- COMPLETE
- UNITS:
- KIT
- BORE SIZE:
- 3,500'
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET KIT
- THICKNESS IMPERIAL:
- 0,030'
- MATERIAL:
- VITON
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 0.76 MM
$202.60 -
COMETIC Complete Gasket Kit - 1200 XL C9757F
COMETIC
$265.60Every 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,...09340805- SKU:
- 09340805
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- MATERIAL:
- VITON
- TYPE:
- COMPLETE
- BORE SIZE:
- 3,500'
- BORE SIZE IMPERIAL:
- 3.500'
- UNITS:
- KIT
$265.60 -
COMETIC Complete Gasket Kit - Softail C9184
COMETIC
$287.65Every 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,...09341229- SKU:
- 09341229
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- BORE SIZE IMPERIAL:
- 3.875'
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MATERIAL:
- VITON
- UNITS:
- KIT
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- BORE SIZE:
- 3,875'
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- COMPLETE
$287.65 -
COMETIC Top End Gasket Kit - M8 C10217
COMETIC
$240.40EST (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...09346323- SKU:
- 09346323
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3.937'
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- BORE SIZE:
- 3,937'
- PRODUCT NAME:
- GASKET
$240.40 -
COMETIC Top End Gasket Kit - M8 C10223
COMETIC
$240.40EST (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...09346325- SKU:
- 09346325
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- BORE SIZE:
- 4,250'
- BORE SIZE IMPERIAL:
- 4.250'
- RIDING STYLE:
- STREET
$240.40 -
COMETIC Motor Gasket Kit - M8 C10250
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...09346326- SKU:
- 09346326
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE SIZE:
- 3,937'
- BORE SIZE IMPERIAL:
- 3.937'
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- TYPE:
- COMPLETE
- UNITS:
- KIT
$267.70 -
COMETIC Pushrod Cover Seals C9598
COMETIC
$7.00Contains the correct seals and O-rings needed for a complete rebuild09344713- SKU:
- 09344713
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- 25 PACK
- RIDING STYLE:
- STREET
- TYPE:
- PUSHROD COVER
$7.00 -
COMETIC Head Gasket - .040" - Twin Cam C9726
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...09340003- SKU:
- 09340003
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- THICKNESS:
- 1,02 MM (0,040')
- TYPE:
- CYLINDER HEAD
- UNITS:
- PAIR
- BORE SIZE:
- 4,000'
- PRODUCT NAME:
- GASKET
- MATERIAL:
- LAYERED STEEL
- BORE SIZE IMPERIAL:
- 4.000'
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,040'
- THICKNESS METRIC:
- 1.02 MM
$61.90 -
COMETIC Engine Gasket Kit - Iron XL C9051F
COMETIC
$176.35Every 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,...09344800- SKU:
- 09344800
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- BORE SIZE IMPERIAL:
- 3.1875'
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- COMPLETE
- UNITS:
- KIT
- BORE SIZE:
- 3,1875'
- RIDING STYLE:
- STREET
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- MATERIAL:
- VITON
$176.35 -
EASTERN MOTORCYCLE PARTS Bearing Retaining Washer - .065" - Big Twin A-35131-80
EASTERN MOTORCYCLE PARTS
$21.30Replacement retaining washers for 4-speed Big TwinsDS194179- SKU:
- DS194179
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- STYLE:
- 4-SPEED
- THICKNESS METRIC:
- 1.65 MM
- THICKNESS:
- 1,65 MM (0,065')
- TYPE:
- BEARING RETAINING
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,065'
- TYPE:
- MAINSHAFT
- UNITS:
- 5 PACK
$21.30 -
EASTERN MOTORCYCLE PARTS Bearing Retaining Washer - 0.070" - Big Twin A-35131-81
EASTERN MOTORCYCLE PARTS
$21.30Replacement retaining washers for 4-speed Big TwinsDS194181- SKU:
- DS194181
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- STYLE:
- 4-SPEED
- THICKNESS:
- 1,78 MM (0,070')
- THICKNESS IMPERIAL:
- 0.070'
- THICKNESS METRIC:
- 1.78 MM
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
- UNITS:
- 5 PACK
- TYPE:
- BEARING RETAINING
$21.30 -
EASTERN MOTORCYCLE PARTS Main Shaft Thrust Washer - XL A-35326-SET
EASTERN MOTORCYCLE PARTS
$56.95EASTERN MOTORCYCLE PARTS Main Shaft Thrust Washer - XLDS194183- SKU:
- DS194183
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- STYLE:
- 4-SPEED
- UNITS:
- SET OF 15
- PRODUCT NAME:
- THRUST WASHER
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
- MOUNTING POSITION:
- RIGHT SIDE
- THICKNESS:
- 0,76 MM - 3,18 MM (0,030' - 0,125')
- THICKNESS IMPERIAL:
- 0,030' - 0,125'
- THICKNESS METRIC:
- 0.76 MM - 3.18 MM
$56.95 -
EASTERN MOTORCYCLE PARTS Countershaft Thrust Washer - XL A-35840-SET
EASTERN MOTORCYCLE PARTS
$22.95Replacement OEM first gear thrust washersDS194187- SKU:
- DS194187
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,65 MM - 2,54 MM (0,065' - 0,100')
- MOUNTING POSITION:
- FIRST GEAR
- PRODUCT NAME:
- THRUST WASHER
- THICKNESS IMPERIAL:
- 0,065' - 0,100'
- UNITS:
- SET
- STYLE:
- 4-SPEED
- THICKNESS METRIC:
- 1.65 MM - 2.54 MM
- TYPE:
- COUNTERSHAFT
$22.95 -
EASTERN MOTORCYCLE PARTS Countershaft Thrust Washer - XL A-35848-SET
EASTERN MOTORCYCLE PARTS
$14.95Replacement OEM first gear thrust washersDS194188- SKU:
- DS194188
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- THRUST WASHER
- UNITS:
- SET
- MOUNTING POSITION:
- FIRST GEAR
- STYLE:
- 4-SPEED
- THICKNESS METRIC:
- 1.19 MM - 2.03 MM
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,19 MM - 2,03 MM (0,047' - 0,080')
- THICKNESS IMPERIAL:
- 0,047' - 0,080'
$14.95 -
On Sale
S&S CYCLE Gasket Set - 3.5" - V2 Big Twin 90-1905
S&S CYCLE
MSRP: $75.95Now: $65.66Was: $75.95Gasket Kit contains head gaskets, base gaskets and exhaust pipe gaskets (rocker box gaskets are not included due to the variety of available rocker box styles), Made in the U.S.A.09340325- SKU:
- 09340325
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BORE SIZE:
- 3,500'
- BORE SIZE IMPERIAL:
- 3.500'
- PRODUCT NAME:
- GASKET
- TYPE:
- CYLINDER BASE
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER HEAD
- TYPE:
- EXHAUST
- UNITS:
- SET
MSRP: $75.95Now: $65.66Was: $75.95 -
RICK'S MOTORSPORT ELECTRIC Stator Gasket - Buell 25-003
RICK'S MOTORSPORT ELECTRIC
$15.95Replacements for OEM stator cover gaskets09344730- SKU:
- 09344730
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- TYPE:
- STATOR COVER
$15.95
