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Engine & Performance

Choose from Engine & Performance products for Harley-Davidson, American V-twin and compatible motorcycle applications. Across the range you will find products for engine components. Compatibility varies, so match the stated model, year and technical details before ordering.

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Cometic V-Twin Top End Gasket Kits MLS (Multi-layer Steel) Rubber
£132.39 - £132.39
£132.39
£132.39 - £132.39
£132.39

Cometic V-Twin Top End Gasket Kits MLS (Multi-layer Steel) Rubber

in stock

Description V-Twin Top End Gasket KitsEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets ...

View full details
£132.39 - £132.39
£132.39
£132.39 - £132.39
£132.39
£130.38 - £130.38
£130.38
£130.38 - £130.38
£130.38

Cometic V-Twin Top End Gasket Kits MLS (Multi-layer Steel) Rubber

Only 2 left!

Description V-Twin Top End Gasket KitsEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets ...

View full details
£130.38 - £130.38
£130.38
£130.38 - £130.38
£130.38
£103.54 - £103.54
£103.54
£103.54 - £103.54
£103.54

Cometic V-Twin Top End Gasket Kits MLS (Multi-layer Steel) Rubber

in stock

Description V-Twin Top End Gasket KitsEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets ...

View full details
£103.54 - £103.54
£103.54
£103.54 - £103.54
£103.54
£103.54 - £103.54
£103.54
£103.54 - £103.54
£103.54

Cometic V-Twin Top End Gasket Kits MLS (Multi-layer Steel) Rubber

in stock

Description V-Twin Top End Gasket KitsEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets ...

View full details
£103.54 - £103.54
£103.54
£103.54 - £103.54
£103.54
Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel
£46.07 - £46.07
£46.07
£46.07 - £46.07
£46.07

Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel

in stock

Description Extreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKi...

View full details
£46.07 - £46.07
£46.07
£46.07 - £46.07
£46.07
£46.74 - £46.74
£46.74
£46.74 - £46.74
£46.74

Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel

in stock

Description Extreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKi...

View full details
£46.74 - £46.74
£46.74
£46.74 - £46.74
£46.74
£103.00 - £103.00
£103.00
£103.00 - £103.00
£103.00

Cometic V-Twin Top End Gasket Kits Rubber Stainless Steel

in stock

Description V-Twin Top End Gasket KitsEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets ...

View full details
£103.00 - £103.00
£103.00
£103.00 - £103.00
£103.00
Cometic V-Twin Top End Gasket Kits Rubber Stainless Steel
£109.24 - £109.24
£109.24
£109.24 - £109.24
£109.24

Cometic V-Twin Top End Gasket Kits Rubber Stainless Steel

in stock

Description V-Twin Top End Gasket KitsEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets ...

View full details
£109.24 - £109.24
£109.24
£109.24 - £109.24
£109.24
£46.58 - £46.58
£46.58
£46.58 - £46.58
£46.58

Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel

in stock

Description Extreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKi...

View full details
£46.58 - £46.58
£46.58
£46.58 - £46.58
£46.58
£46.58 - £46.58
£46.58
£46.58 - £46.58
£46.58

Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel

in stock

Description Extreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKi...

View full details
£46.58 - £46.58
£46.58
£46.58 - £46.58
£46.58
£33.32 - £33.32
£33.32
£33.32 - £33.32
£33.32

Cometic Extreme Sealing Technology Rocker Box Gasket Kit SLS Paper

in stock

Description Extreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKi...

View full details
£33.32 - £33.32
£33.32
£33.32 - £33.32
£33.32
£34.93 - £34.93
£34.93
£34.93 - £34.93
£34.93

Cometic Extreme Sealing Technology Rocker Box Gasket Kit SLS Paper

in stock

Description Extreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKi...

View full details
£34.93 - £34.93
£34.93
£34.93 - £34.93
£34.93
£22.60 - £22.60
£22.60
£22.60 - £22.60
£22.60

Cometic Cylinder Base Gasket Viton Coated Steel Pair

in stock

Description Cylinder Base GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not cre...

View full details
£22.60 - £22.60
£22.60
£22.60 - £22.60
£22.60
£23.34 - £23.34
£23.34
£23.34 - £23.34
£23.34

Cometic Cylinder Base Gasket Viton Coated Steel Pair

in stock

Description Cylinder Base GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not cre...

View full details
£23.34 - £23.34
£23.34
£23.34 - £23.34
£23.34
£6.61 - £6.61
£6.61
£6.61 - £6.61
£6.61

Cometic Tappet Gasket Front Rear Tappet Cover Fibre 10 Pack

in stock

Description Tappet GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, cra...

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£6.61 - £6.61
£6.61
£6.61 - £6.61
£6.61
Cometic Rocker Cover Gasket Viton Coated Steel 10 Pack
£74.78 - £74.78
£74.78
£74.78 - £74.78
£74.78

Cometic Rocker Cover Gasket Viton Coated Steel 10 Pack

in stock

Description Rocker Cover GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not cree...

View full details
£74.78 - £74.78
£74.78
£74.78 - £74.78
£74.78
£15.74 - £15.74
£15.74
£15.74 - £15.74
£15.74

Cometic Cylinder Base O-ring Nitrile 10 Pack

in stock

Description Cylinder Base O-ringMake in the U.S.A.Fits for '99-'17 Twin Cam (except 110" motor). Specifications Units: 10 Pack Product Name: O-R...

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£15.74 - £15.74
£15.74
£15.74 - £15.74
£15.74
£16.30 - £16.30
£16.30
£16.30 - £16.30
£16.30

Cometic Derby Cover O-Ring Nitrile Rubber 10 Pack

in stock

Description Derby Cover O-RingHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep...

View full details
£16.30 - £16.30
£16.30
£16.30 - £16.30
£16.30
£32.36 - £32.36
£32.36
£32.36 - £32.36
£32.36

Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel

in stock

Description Extreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKi...

View full details
£32.36 - £32.36
£32.36
£32.36 - £32.36
£32.36
£5.69 - £5.69
£5.69
£5.69 - £5.69
£5.69

Cometic Oil Pump Seal Viton

in stock

Description Oil Pump SealReplacement Oil Pump Seal Specifications Units: Each Riding Style: Street Type: Oil Pump Product Name: Seal Material...

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£5.69 - £5.69
£5.69
£5.69 - £5.69
£5.69
Cometic Replacement Valve Guide Seal Valve Stem Viton
£1.47 - £1.47
£1.47
£1.47 - £1.47
£1.47

Cometic Replacement Valve Guide Seal Valve Stem Viton

in stock

Description Replacement Valve Guide SealHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will...

View full details
£1.47 - £1.47
£1.47
£1.47 - £1.47
£1.47
£6.54 - £6.54
£6.54
£6.54 - £6.54
£6.54

Cometic Pushrod Tube O-Ring Kit Seal Viton Set

in stock

Description Pushrod Tube O-Ring KitViton® rubber O-ring sealsInclude proper quantity for one engineMade in the U.S.A. Specifications Riding Style...

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£6.54 - £6.54
£6.54
£6.54 - £6.54
£6.54
Sold out
£2.68 - £2.68
£2.68
£2.68 - £2.68
£2.68

Cometic Oil Pump O-Ring Viton 10 Pack

Out of stock

Description Oil Pump O-RingHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, c...

View full details
£2.68 - £2.68
£2.68
£2.68 - £2.68
£2.68
Sold out
Cometic Starter Gasket Motor AFM (Aluminium Foam Material) 10 Pack
£7.47 - £7.47
£7.47
£7.47 - £7.47
£7.47

Cometic Starter Gasket Motor AFM (Aluminium Foam Material) 10 Pack

in stock

Description Starter GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, cr...

View full details
£7.47 - £7.47
£7.47
£7.47 - £7.47
£7.47

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