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Engine Gaskets

Browse engine gaskets for Harley-Davidson, American V-twin and compatible motorcycle applications. Check the product details and stated fitment before ordering.

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£221.09 - £221.09
£221.09
£223.73
£223.73 - £223.73
£223.73

Cometic Est Motor Gasket Kit. 3-3/4" Bore – 2007–2015 96" Softail

Low stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£221.09 - £221.09
£221.09
£223.73
£223.73 - £223.73
£223.73
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£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02

Cometic Est Motor Only Gasket Kit. 4" Bore – 1984–1999 4" Bore S&S 100/107/113"…

Out of stock

Description With .040" MLS (Multi Layer Steel) head gaskets. This EST (Extreme-Sealing-Technology) gasket sets are complete with all gaskets; seals...

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£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02
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£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02

Cometic Est Motor Gasket Kit. 3-5/8" Big Bore – 1992–1999 Evo Big Twin

Low stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02
Sold out
£115.11
£115.11 - £115.11
£115.11
£113.99
£113.99 - £113.99
£113.99

Cometic Est Top End Gasket Kit. XL1200 – 1988–1990 XL1200

Out of stock

Description With 3.50" bore MLS (Multi-Layer-Steel) .030" thick head gaskets. The SLS (Single-Layer-Steel) cylinder base gaskets and SLS rocker cov...

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£115.11
£115.11 - £115.11
£115.11
£113.99
£113.99 - £113.99
£113.99
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£149.21
£149.21 - £149.21
£149.21
£147.76
£147.76 - £147.76
£147.76

Cometic Est Motor Only Gasket Kit. 3-1/2" Bore – 1984–1991 Big Twin

Low stock

Description With .040" MLS (Multi Layer Steel) head gaskets. This EST (Extreme-Sealing-Technology) gasket sets are complete with all gaskets; seals...

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£149.21
£149.21 - £149.21
£149.21
£147.76
£147.76 - £147.76
£147.76
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£115.11
£115.11 - £115.11
£115.11
£113.99
£113.99 - £113.99
£113.99

Cometic Est Top End Gasket Kit. Evo B.t – 1992–1999 Evo Big Twin

Out of stock

Description With MLS (Multi-Layer-Steel) .030" thick head gaskets. The SLS (Single-Layer-Steel) cylinder base gaskets and SLS rocker cover gaskets ...

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£115.11
£115.11 - £115.11
£115.11
£113.99
£113.99 - £113.99
£113.99
Sold out
Sold out
£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02

Cometic Est Motor Gasket Kit. 3-1/2" Bore – 1989–1991 Evo 1340cc Softail; Dyna

Out of stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02
Sold out
Sold out
£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02

Cometic Est 5-Speed Motor Gasket Kit. 3-1/2" Bore – 1984–1991 FLT/Touring; FXR

Out of stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02
Sold out
£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02

Cometic Est Motor Gasket Kit. 3-1/2" Bore – 1984–1988 Evo 1340cc Big Twin

Low stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

View full details
£273.75 - £273.75
£273.75
£277.02
£277.02 - £277.02
£277.02
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£154.70
£154.70 - £154.70
£154.70
£153.19
£153.19 - £153.19
£153.19

Cometic Est Motor Gasket Kit. 4" Bore – 1999–2006 Softail Only with 4" Big Bore

Low stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£154.70
£154.70 - £154.70
£154.70
£153.19
£153.19 - £153.19
£153.19
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£33.96
£33.96 - £33.96
£33.96
£32.47
£32.47 - £32.47
£32.47

Cometic 5-Speed Transmission Gasket & Seal Kit. Est – 2000–2006 Softail; 1999–2006 FLT/Touring

Out of stock

Description With EST (Extreme Sealing Technology) steel base gaskets. Everything you need when assembling the transmission. OEM replacement referen...

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£33.96
£33.96 - £33.96
£33.96
£32.47
£32.47 - £32.47
£32.47
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Sold out
£67.66
£67.66 - £67.66
£67.66
£64.69
£64.69 - £64.69
£64.69

Cometic 5-Speed Transmission Gasket & Seal Kit. Est – 1993–1998 FLT/Touring; 1993–1999 Softail

Out of stock

Description Everything you need when assembling the transmission. Fitment 93-98 FLT/Touring; 93-99 Softail (Excl. all Twin Cam models) (NU) Product...

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£67.66
£67.66 - £67.66
£67.66
£64.69
£64.69 - £64.69
£64.69
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£37.34
£37.34 - £37.34
£37.34
£35.70
£35.70 - £35.70
£35.70

Cometic Est 4-Speed Transmission Gasket & Seal Kit – E70-E79 4-Speed Big Twin

Low stock

Description With EST (Extreme Sealing Technology) steel base gaskets. Everything you need when assembling the transmission. Fitment E70-E79 4-speed...

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£37.34
£37.34 - £37.34
£37.34
£35.70
£35.70 - £35.70
£35.70
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£168.11
£168.11 - £168.11
£168.11
£166.47
£166.47 - £166.47
£166.47

Cometic Est Motor Gasket Kit. 3-7/8" Bore – 2000–2006 Softail; 1999–2005 Dyna…

Low stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£168.11
£168.11 - £168.11
£168.11
£166.47
£166.47 - £166.47
£166.47
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£62.23
£62.23 - £62.23
£62.23
£59.50
£59.50 - £59.50
£59.50

Cometic 6-Speed Transmission Gasket & Seal Kit – 2006–2017 Dyna

Low stock

Description Everything you need when assembling the transmission. Fitment 06-17 Dyna (NU) Product Details Brand: Cometic Category: GASKETS > ...

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£62.23
£62.23 - £62.23
£62.23
£59.50
£59.50 - £59.50
£59.50
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£168.11
£168.11 - £168.11
£168.11
£166.47
£166.47 - £166.47
£166.47

Cometic Est Motor Gasket Kit. 3-7/8" Big Bore – 2006–2017 103" Dyna

Low stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£168.11
£168.11 - £168.11
£168.11
£166.47
£166.47 - £166.47
£166.47
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£168.08
£168.08 - £168.08
£168.08
£166.44
£166.44 - £166.44
£166.44

Cometic Est Motor Gasket Kit. 3-3/4" Bore – 2006–2017 96" Dyna (with 1999–2010 Style…

Out of stock

Description This EST (Extreme-Sealing-Technology) gasket set is complete with all gaskets; seals and o-rings that are used on this model; including...

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£168.08
£168.08 - £168.08
£168.08
£166.44
£166.44 - £166.44
£166.44
Sold out
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£120.82
£120.82 - £120.82
£120.82
£119.64
£119.64 - £119.64
£119.64

Cometic Est Top End Gasket Kit. Twin Cam 3-3/4" Bore – 1999–2017 88/96" Twin Cam

Low stock

Description With MLS (Multi-Layer-Steel) .040" thick head gaskets. The SLS (Single-Layer-Steel) cylinder base gaskets and SLS rocker cover gaskets ...

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£120.82
£120.82 - £120.82
£120.82
£119.64
£119.64 - £119.64
£119.64
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£136.28
£136.28 - £136.28
£136.28
£134.95
£134.95 - £134.95
£134.95

Cometic Est Motor Only Gasket Kit. 4" Bore – 1999–2017 Twin Cam (for 1999–2004 Early…

Low stock

Description With .040" MLS (Multi Layer Steel) head gaskets. With 99-10 style breather gaskets & 99-04 early style valve stem seals. This EST (...

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£136.28
£136.28 - £136.28
£136.28
£134.95
£134.95 - £134.95
£134.95
Save 1% Save %
Sold out
£136.28
£136.28 - £136.28
£136.28
£134.95
£134.95 - £134.95
£134.95

Cometic Est Motor Only Gasket Kit. 4" Bore – 1999–2017 Twin Cam (for 1999–2004 Early…

Out of stock

Description With .030" MLS (Multi Layer Steel) head gaskets. With 99-10 style breather gaskets & 99-04 early style valve stem seals. This EST (...

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£136.28
£136.28 - £136.28
£136.28
£134.95
£134.95 - £134.95
£134.95
Sold out
Sold out
£51.20
£51.20 - £51.20
£51.20
£48.95
£48.95 - £48.95
£48.95

Cometic Cylinder Head Gaskets 3-7/8" Bore .045" Mls – 1999–2017 Twin Cam. with 3-7/8" Bore…

Out of stock

Description MLS (Multi Layer Steel). Front & rear gasket for one engine. 3-7/8" (3.875") fits 88" to 95"(1550cc) big bore conversions and is st...

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£51.20
£51.20 - £51.20
£51.20
£48.95
£48.95 - £48.95
£48.95
Sold out
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£51.20
£51.20 - £51.20
£51.20
£48.95
£48.95 - £48.95
£48.95

Cometic Cylinder Head Gaskets 3-7/8" Bore .051" Mls – 1999–2017 Twin Cam. with 3-7/8" Bore…

Low stock

Description MLS (Multi Layer Steel). Front & rear gasket for one engine. 3-7/8" (3.875") fits 88" to 95"(1550cc) big bore conversions and is st...

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£51.20
£51.20 - £51.20
£51.20
£48.95
£48.95 - £48.95
£48.95
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£34.57
£34.57 - £34.57
£34.57
£33.05
£33.05 - £33.05
£33.05

Cometic Primary Gasket & Seal Kit. Afm – 2004–2005 XL Sportster; 2008–2012 XR1200

Low stock

Description These AFM (Aluminum Foamette Material) gaskets feature an aluminum core with a chemically blown; compounded nitrile synthetic rubber bo...

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£34.57
£34.57 - £34.57
£34.57
£33.05
£33.05 - £33.05
£33.05
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£27.71
£27.71 - £27.71
£27.71
£26.49
£26.49 - £26.49
£26.49

Cometic Cylinder Base Gasket Set. Sls 4-1/8" Big Bore – 1999–2017 Twin Cam with 4-1/8" Bore…

Out of stock

Description Front & rear gasket for one engine. .010" thick SLS (Single Layer Steel); a non-embossed steel core with a .001" thick coating of h...

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£27.71
£27.71 - £27.71
£27.71
£26.49
£26.49 - £26.49
£26.49
Sold out

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