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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JAMES GASKET Primary Gasket Kit 34901-85-K
JAMES GASKET
$67.95Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174953- SKU:
- DS174953
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- FEATURES:
- BEADED
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,062'
- PRODUCT NAME:
- GASKET KIT
- MATERIAL:
- SILICONE
- TYPE:
- PRIMARY COVER
- UNITS:
- KIT
- MATERIAL:
- PAPER
- THICKNESS METRIC:
- 1.60 MM
$67.95 -
JAMES GASKET Primary Gasket Kit 34901-94-K
JAMES GASKET
$75.95Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174952- SKU:
- DS174952
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- PRIMARY COVER
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- FEATURES:
- BEADED
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- MATERIAL:
- SILICONE
$75.95 -
JAMES GASKET Primary Gasket Kit 60539-89-KX
JAMES GASKET
$96.95Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174951- SKU:
- DS174951
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- FEATURES:
- BEADED
- MATERIAL:
- SILICONE
- THICKNESS IMPERIAL:
- 0,062'
- THICKNESS METRIC:
- 1.60 MM
- TYPE:
- PRIMARY COVER
- UNITS:
- KIT
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
$96.95 -
JAMES GASKET Primary Gasket Kit 60539-94-K
JAMES GASKET
$96.95Top quality gaskets, seals and o-rings meet or exceed OEM specifications, Primary gasket features silicone beading, Made in the U.S.A.DS174950- SKU:
- DS174950
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET KIT
- FEATURES:
- BEADED
- MATERIAL:
- SILICONE
- THICKNESS IMPERIAL:
- 0,062'
- TYPE:
- PRIMARY COVER
- UNITS:
- KIT
- THICKNESS METRIC:
- 1.60 MM
- RIDING STYLE:
- STREET
$96.95 -
JAMES GASKET Head/Base Gasket - Big Twin 16770-84-A
JAMES GASKET
$42.95Genuine James kits include matching head and base gaskets and O-rings where applicable, Made in the U.S.A.DS174924- SKU:
- DS174924
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MATERIAL:
- TEFLON
- THICKNESS IMPERIAL:
- 0,032'
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,045'
- PRODUCT NAME:
- GASKET
- STYLE:
- STANDARD BORE
- BORE SIZE IMPERIAL:
- 3.500'
- THICKNESS METRIC:
- 0.81 MM
- THICKNESS METRIC:
- 1.14 MM
- TYPE:
- CYLINDER BASE
- TYPE:
- CYLINDER HEAD
- UNITS:
- KIT
$42.95 -
JAMES GASKET Upper Rocker Cover Cork Gasket - Big Twin 17356-84
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...DS174916- SKU:
- DS174916
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- CORK
- TYPE:
- ROCKER BOX
- PRODUCT NAME:
- GASKET
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- UPPER
$45.60 -
JAMES GASKET Inner Rocker Cover Cork Gasket 17358-84
JAMES GASKET
$20.90Made 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...DS174915- SKU:
- DS174915
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- INNER
- PRODUCT NAME:
- GASKET
- MATERIAL:
- CORK
- TYPE:
- ROCKER BOX
- UNITS:
- 10 PACK
$20.90 -
JAMES GASKET Cylinder/Base Gasket Set - Big Twin 16770-66-S
JAMES GASKET
$34.95Genuine James kits include matching head and base gaskets and O-rings where applicable, Made in the U.S.A.DS174914- SKU:
- DS174914
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- THICKNESS IMPERIAL:
- 0,045'
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- 0,032'
- THICKNESS METRIC:
- 1.14 MM
- BORE SIZE IMPERIAL:
- 3.625'
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD BORE
- THICKNESS METRIC:
- 0.81 MM
- TYPE:
- CYLINDER HEAD
- MATERIAL:
- TEFLON
$34.95 -
JAMES GASKET Head Gasket - Teflon - .32" - XL 16769-73-T
JAMES GASKET
$39.10Made in the U.S.A.DS174913- SKU:
- DS174913
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER HEAD
- DISPLACEMENT:
- 1000 CC
- PRODUCT NAME:
- GASKET
- UNITS:
- 5 PACK
- THICKNESS IMPERIAL:
- 0,046'
- MATERIAL:
- TEFLON
- THICKNESS:
- 1,17 MM (0,046')
- THICKNESS METRIC:
- 1.17 MM
$39.10 -
JAMES GASKET Head Gasket V2 - Big Twin 16773-85
JAMES GASKET
$59.20Made in the U.S.A.DS174912- SKU:
- DS174912
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE SIZE:
- -
- MATERIAL:
- -
- UNITS:
- 5 PACK
- BORE SIZE IMPERIAL:
- -
- THICKNESS IMPERIAL:
- 0,062'
- THICKNESS METRIC:
- 1.60 MM
- TYPE:
- CYLINDER HEAD
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
$59.20 -
JAMES GASKET Fire Ring Head Gasket - FL 16770-66-X
JAMES GASKET
$39.95Made in the U.S.A.DS174911- SKU:
- DS174911
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- CYLINDER HEAD
- UNITS:
- PAIR
- FEATURES:
- FIRE RING
- RIDING STYLE:
- STREET
$39.95 -
JAMES GASKET Big Bore Kit - Big Twin 16770-84S
JAMES GASKET
$52.95Genuine James kits include matching head and base gaskets and O-rings where applicable, Made in the U.S.A.DS174903- SKU:
- DS174903
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- STYLE:
- BIG BORE
- THICKNESS IMPERIAL:
- 0,045'
- THICKNESS METRIC:
- 1.14 MM
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
- MATERIAL:
- TEFLON
- BORE SIZE IMPERIAL:
- 3.625'
- RIDING STYLE:
- STREET
- TYPE:
- CYLINDER HEAD
- PRODUCT NAME:
- GASKET
$52.95 -
JAMES GASKET Rocker Box Rubber Gasket - XL 17030-89
JAMES GASKET
$68.95Made in the U.S.A.DS174902- SKU:
- DS174902
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- ROCKER BOX
- UNITS:
- KIT
$68.95 -
JAMES GASKET Teflon Head Gasket - XL 16769-57
JAMES GASKET
$43.20Made in the U.S.A.DS174900- SKU:
- DS174900
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MATERIAL:
- TEFLON
- THICKNESS:
- 1,14 MM (0,045')
- TYPE:
- CYLINDER HEAD
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 1.14 MM
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- THICKNESS IMPERIAL:
- 0,045'
$43.20 -
JAMES GASKET Countershaft Cap Gasket 36025-36
JAMES GASKET
$11.30Replacement counter shaft cap gasket. Made in the U.S.A.DS174899- SKU:
- DS174899
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- STYLE:
- COVER
- TYPE:
- COUNTERSHAFT
- TYPE:
- TRANSMISSION
- UNITS:
- 10 PACK
- PRODUCT NAME:
- GASKET
$11.30 -
JAMES GASKET Trans Dust Cover Gasket 34565-52
JAMES GASKET
$9.50Flexible 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., Made in the U.S.A.DS174897- SKU:
- DS174897
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- TYPE:
- SHIFTER ADAPTER PLATE
$9.50 -
JAMES GASKET Kicker Cover Gasket - 4 Speed 33295-36
JAMES GASKET
$10.60Flexible 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 reduced pore size, this...DS174895- SKU:
- DS174895
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- STYLE:
- 4-SPEED
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION END COVER
$10.60 -
JAMES GASKET New Switch Gasket - Big Twin 33043-80
JAMES GASKET
$5.00Quality washers made to last, Made in the U.S.A.DS174894- SKU:
- DS174894
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- UNITS:
- 10 PACK
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- STREET
- TYPE:
- NETURAL SWITCH
$5.00 -
JAMES GASKET Speedo Drive Gasket - Big Twin 67141-36
JAMES GASKET
$7.70OEM replacement speedometer drive gear seal.DS174893- SKU:
- DS174893
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- TYPE:
- SPEEDOMETER DRIVE
- MATERIAL:
- PAPER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$7.70 -
JAMES GASKET Trans Top Cover Gasket - Big Twin 34824-36
JAMES GASKET
$15.60Made in the U.S.A.DS174890- SKU:
- DS174890
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION TOP COVER
$15.60
