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
-
DRAG SPECIALTIES Inspection Cover Gasket 210354
DRAG SPECIALTIES
$8.19Machined from billet aluminum; includes gasket and hardware09341711- SKU:
- 09341711
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- INSPECTION COVER
$8.19 -
DRAG SPECIALTIES Gasket Header - Softail I01-0205A
DRAG SPECIALTIES
$38.06High-quality exhaust gaskets09346424- SKU:
- 09346424
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
- TYPE:
- EXHAUST
$38.06 -
DRAG SPECIALTIES Master Cylinder Gasket 027512-HC3
DRAG SPECIALTIES
$25.70Replacement cover gasket for stock master cylinderDS174940- SKU:
- DS174940
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- MASTER CYLINDER COVER
- UNITS:
- 10 PACK
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- STREET
$25.70 -
S&S CYCLE Gaskets - 74/80" - .032" 930-0088
S&S CYCLE
$71.95Head 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.09345016- SKU:
- 09345016
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- THICKNESS IMPERIAL:
- 0,032'
- BORE SIZE IMPERIAL:
- 3.500'
- TYPE:
- CYLINDER HEAD
- UNITS:
- PAIR
- BORE SIZE:
- 3,500'
- MATERIAL:
- COPPER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,81 MM (0,032')
- THICKNESS METRIC:
- 0.81 MM
$71.95 -
S&S CYCLE Base Gaskets - 3-5/8" - Shovelhead 930-0096
S&S CYCLE
$19.95Made in the U.S.A., Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out.09345024- SKU:
- 09345024
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,018'
- TYPE:
- CYLINDER BASE
- UNITS:
- PAIR
- BORE SIZE IMPERIAL:
- 3.625'
- FEATURES:
- STOCK BOLT PATTERN
- THICKNESS:
- 0,46 MM (0,018')
- THICKNESS METRIC:
- 0.46 MM
$19.95 -
S&S CYCLE Gaskets - 3.94" - Twin Cam 900-0862
S&S CYCLE
$91.95Head 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.09345025- SKU:
- 09345025
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- CYLINDER HEAD
- UNITS:
- PAIR
- BORE SIZE IMPERIAL:
- 3.940'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 1.09 MM
- BORE SIZE:
- 3,940'
- THICKNESS IMPERIAL:
- 0,043'
- MATERIAL:
- STEEL
- THICKNESS:
- 1,09 MM (0,043')
$91.95 -
S&S CYCLE Rocker Box Top Gasket 90-4079
S&S CYCLE
$19.95Replacement seal for EVO Big Twin and S&S 4-1/8 bore motors09345032- SKU:
- 09345032
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- EACH
- TYPE:
- ROCKER COVER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
$19.95 -
S&S CYCLE Tapped Guide Gaskets 33-5302
S&S CYCLE
$10.95Tappet Guide Gasket for S&S Super Stock Crankcases09345076- SKU:
- 09345076
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- PAIR
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- TAPPET GUIDE
$10.95 -
S&S CYCLE Rocker Box Gasket - Big Twin 90-4073
S&S CYCLE
$61.95Includes all required gaskets and O-rings for both rocker boxesDS174081- SKU:
- DS174081
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- TYPE:
- ROCKER BOX
- UNITS:
- KIT
- FEATURES:
- FOR '99 - '06 BIG TWIN CAM S&S ROCKER BOXES
- PRODUCT NAME:
- GASKET KIT
- FEATURES:
- 6-BOLT STYLE
- RIDING STYLE:
- STREET
$61.95 -
S&S CYCLE Complete Gasket Kit - 4" 106-1020
S&S CYCLE
$224.95Made in the U.S.A.09344759- SKU:
- 09344759
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE SIZE IMPERIAL:
- 4.000'
- FEATURES:
- FOR '84 - '99 EVOLUTION-STYLE BIG TWIN
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- TYPE:
- COMPLETE
$224.95 -
S&S CYCLE Gasket Set - 3.625" - V2 Big Twin 90-1906
S&S CYCLE
$67.95Gasket 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.09340326- SKU:
- 09340326
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- RIDING STYLE:
- STREET
- UNITS:
- SET
- TYPE:
- EXHAUST
- BORE SIZE IMPERIAL:
- 3.625'
- TYPE:
- CYLINDER BASE
- TYPE:
- CYLINDER HEAD
- BORE SIZE:
- 3,625'
- PRODUCT NAME:
- GASKET
$67.95 -
S&S CYCLE Top End Gasket Kit - 4-1/8" 90-9510
S&S CYCLE
$181.95Made in the U.S.A.09340653- SKU:
- 09340653
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- BORE SIZE IMPERIAL:
- 4.125'
- UNITS:
- KIT
- FEATURES:
- STOCK BOLT PATTERN
- PRODUCT NAME:
- GASKET KIT
$181.95 -
S&S CYCLE Base/Head Gaskets - Big Bore - Big Twin 90-1918
S&S CYCLE
$102.95Head gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick coating, Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow...09342106- SKU:
- 09342106
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,81 MM (0,032')
- THICKNESS IMPERIAL:
- 0,032'
- BORE SIZE IMPERIAL:
- 3.625'
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- COPPER
- PRODUCT NAME:
- GASKET KIT
- THICKNESS METRIC:
- 0.81 MM
- BORE SIZE:
- 3,625'
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
$102.95 -
S&S CYCLE Top End Gasket - 4.125" 90-1914
S&S CYCLE
$147.95Includes set of head and base gaskets, exhaust gaskets and O-rings, Layered steel head gaskets, Made in the U.S.A., Kit does not include rocker box gaskets; must be purchased separately.09344753- SKU:
- 09344753
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BORE SIZE IMPERIAL:
- 4.125'
- BORE SIZE:
- 4,125'
- MATERIAL:
- LAYERED STEEL
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- EXHAUST
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER HEAD
$147.95 -
S&S CYCLE Gaskets 3-5/8" (.062) 930-0097
S&S CYCLE
$52.95Head 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.09345011- SKU:
- 09345011
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MATERIAL:
- MICROPORE COMPOUND
- THICKNESS:
- 1,60 MM (0,062')
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS METRIC:
- 1.60 MM
- UNITS:
- PAIR
- BORE SIZE:
- 3,625'
- THICKNESS IMPERIAL:
- 0.062'
- BORE SIZE IMPERIAL:
- 3.625'
- TYPE:
- CYLINDER HEAD
$52.95 -
S&S CYCLE Gaskets - 4" - Evo - .043" 930-0087
S&S CYCLE
$27.95Head 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.09345012- SKU:
- 09345012
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE IMPERIAL:
- 4.000'
- TYPE:
- CYLINDER HEAD
- BORE SIZE:
- 4,000'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,09 MM (0,043')
- THICKNESS METRIC:
- 1.09 MM
- MATERIAL:
- MICROPORE COMPOUND
- THICKNESS IMPERIAL:
- 0,043'
- UNITS:
- PAIR
$27.95 -
S&S CYCLE Base Gaskets - 3.5" - V2 930-0092
S&S CYCLE
$24.95Made in the U.S.A., Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out.09345018- SKU:
- 09345018
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- BORE SIZE IMPERIAL:
- 3.500'
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,46 MM (0,018')
- UNITS:
- PAIR
- FEATURES:
- STOCK BOLT PATTERN
- THICKNESS IMPERIAL:
- 0,018'
- TYPE:
- CYLINDER BASE
- THICKNESS METRIC:
- 0.46 MM
$24.95 -
S&S CYCLE Base Gaskets - 4.125" - STK 930-0101
S&S CYCLE
$25.95Made in the U.S.A., Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out.09345020- SKU:
- 09345020
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE IMPERIAL:
- 4.125'
- FEATURES:
- STOCK BOLT PATTERN
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,46 MM (0,018')
- THICKNESS IMPERIAL:
- 0,018'
- TYPE:
- CYLINDER BASE
- UNITS:
- PAIR
- THICKNESS METRIC:
- 0.46 MM
$25.95 -
S&S CYCLE Base Gaskets - 4.125" - SSW 930-0099
S&S CYCLE
$17.95Made in the U.S.A., Base gaskets feature S&S Pro-Formance micropore compound proven to resist failure due to extrusion or blow out.09345021- SKU:
- 09345021
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE IMPERIAL:
- 4.125'
- FEATURES:
- S&S BOLT PATTERN
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,46 MM (0,018')
- THICKNESS IMPERIAL:
- 0,018'
- TYPE:
- CYLINDER BASE
- UNITS:
- PAIR
- THICKNESS METRIC:
- 0.46 MM
$17.95 -
S&S CYCLE Top Rubber Washer 50-7015-12
S&S CYCLE
$15.95Replacement rocker box screw sealing washers.09345030- SKU:
- 09345030
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER COVER
- UNITS:
- 10 PACK
- MATERIAL:
- RUBBER
- MATERIAL:
- STEEL
$15.95
