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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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£103.54 - £103.54
£103.54
£103.54 - £103.54
£103.54

Cometic V-Twin Top End Gasket Kits MLS (Multi-layer Steel) Rubber - C9747

in stock

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

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£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 - C9635

in stock

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

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£103.54 - £103.54
£103.54
£103.54 - £103.54
£103.54
£46.07 - £46.07
£46.07
£46.07 - £46.07
£46.07

Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel - C9765

in stock

DescriptionExtreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKit...

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£46.07 - £46.07
£46.07
£46.07 - £46.07
£46.07
Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel
£46.74 - £46.74
£46.74
£46.74 - £46.74
£46.74

Cometic Extreme Sealing Technology Rocker Box Gasket Kit EST Steel - C9764

in stock

DescriptionExtreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKit...

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£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 - C9763

in stock

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

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£103.00 - £103.00
£103.00
£103.00 - £103.00
£103.00
Sold out
£119.80
£119.80 - £119.80
£119.80
£101.89
£101.89 - £101.89
£101.89

V-Twin Top End Gasket Kits Sportster

Out of stock

Sets contain all the necessary gaskets, seals, and O-rings to rebuild the top end from the cylinder base upward

£119.80
£119.80 - £119.80
£119.80
£101.89
£101.89 - £101.89
£101.89
Sold out
£109.24 - £109.24
£109.24
£109.24 - £109.24
£109.24

Cometic V-Twin Top End Gasket Kits Rubber Stainless Steel - C9760

in stock

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

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 - C9753

in stock

DescriptionExtreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKit...

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£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 - C9752

in stock

DescriptionExtreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKit...

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£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 - C9066

in stock

DescriptionExtreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKit...

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£33.32 - £33.32
£33.32
£33.32 - £33.32
£33.32
£22.60 - £22.60
£22.60
£22.60 - £22.60
£22.60

Cometic Cylinder Base Gasket Viton Coated Steel Pair - C9553

in stock

DescriptionCylinder Base GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not cree...

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£22.60 - £22.60
£22.60
£22.60 - £22.60
£22.60
Cometic Cylinder Base Gasket Viton Coated Steel Pair
£23.34 - £23.34
£23.34
£23.34 - £23.34
£23.34

Cometic Cylinder Base Gasket Viton Coated Steel Pair - C9551

in stock

DescriptionCylinder Base GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not cree...

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£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 - C9578

in stock

DescriptionTappet GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crac...

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£6.61 - £6.61
£6.61
£6.61 - £6.61
£6.61
£74.78 - £74.78
£74.78
£74.78 - £74.78
£74.78

Cometic Rocker Cover Gasket Viton Coated Steel 10 Pack - C9577

in stock

DescriptionRocker Cover GasketHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep...

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£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 - C9628

in stock

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

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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 - C9442

in stock

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

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£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 - C9588

in stock

DescriptionExtreme Sealing Technology Rocker Box Gasket KitPremium materials used for specific applications to provide a long, service free lifeKit...

View full details
£32.36 - £32.36
£32.36
£32.36 - £32.36
£32.36
Sold out
£20.31
£20.31 - £20.31
£20.31
£17.25
£17.25 - £17.25
£17.25

Cometic RH Rocker Box Gasket for Various Various Harley-Davidson Motorcycles (See Fitment List)

Out of stock

DetailsMaterial : VitonMounting Position : LowerUnits : 5 PackProduct Name : GasketThickness : 0,25 mm (0,010")Type : Rocker Cover

£20.31
£20.31 - £20.31
£20.31
£17.25
£17.25 - £17.25
£17.25
Sold out
£1,021.28 - £1,021.28
£1,021.28
£1,044.37
£1,044.37 - £1,044.37
£1,044.37

S&S Easy Start Gear Drive 585 Camshaft Kit (IOG) – 2007–2017 Softail; 2006–2017 Dyna…

Only 2 left!

S&S Easy Start Gear Drive 585 Camshaft Kit (IOG) – 2007–2017 Softail; 2006–2017 Dyna… .585" valve lift. IOG = gear drive cams with Inner & ...

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£1,021.28 - £1,021.28
£1,021.28
£1,044.37
£1,044.37 - £1,044.37
£1,044.37
Save 14% Save %
£11.34
£11.34 - £11.34
£11.34
£9.79
£9.79 - £9.79
£9.79

Gardner-Westcott Oil Filter Mount Kit. Chrome – 1999–2000 Twin Cam

Only 2 left!

Gardner-Westcott Oil Filter Mount Kit. Chrome – 1999–2000 Twin Cam Chrome plated Allen heads Fitment 99-00 Twin Cam (NU) Product Details Brand: G...

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£11.34
£11.34 - £11.34
£11.34
£9.79
£9.79 - £9.79
£9.79
Save 14% Save %
Save 1% Save %
£21.39
£21.39 - £21.39
£21.39
£21.09
£21.09 - £21.09
£21.09

James Gaskets Saddlebag Lid Gasket – 1993–2013 FLT/Touring with Hard Saddle…

Only 3 left!

James Gaskets Saddlebag Lid Gasket – 1993–2013 FLT/Touring with Hard Saddle… OEM replacement reference 90675-93A. Fitment 93-13 FLT/Touring (NU) wi...

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£21.39
£21.39 - £21.39
£21.39
£21.09
£21.09 - £21.09
£21.09
Save 1% Save %
£217.44 - £217.44
£217.44
£222.36
£222.36 - £222.36
£222.36

James Gaskets Gasket & Seal Board. 6-Speed Twin Cam – 2006–2017 6-Speed 96" 6-Speed Twin Cam

Only 3 left!

James Gaskets Gasket & Seal Board. 6-Speed Twin Cam – 2006–2017 6-Speed 96" 6-Speed Twin Cam Allows you to get a grip on your sealing departmen...

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£217.44 - £217.44
£217.44
£222.36
£222.36 - £222.36
£222.36
£217.44 - £217.44
£217.44
£222.36
£222.36 - £222.36
£222.36

James Gaskets Gasket & Seal Board. Evolution Big Twin – 1984–1999 Evo Big Twin

Only 2 left!

James Gaskets Gasket & Seal Board. Evolution Big Twin – 1984–1999 Evo Big Twin Allows you to get a grip on your sealing department and save tim...

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£217.44 - £217.44
£217.44
£222.36
£222.36 - £222.36
£222.36
£217.44 - £217.44
£217.44
£222.36
£222.36 - £222.36
£222.36

James Gaskets Gasket & Seal Board. 86-03 Evo Sportster – 1986–2003 XL Sportster

Only 2 left!

James Gaskets Gasket & Seal Board. 86-03 Evo Sportster – 1986–2003 XL Sportster Allows you to get a grip on your sealing department and save ti...

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£217.44 - £217.44
£217.44
£222.36
£222.36 - £222.36
£222.36

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