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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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£12.63
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James Gaskets Rocker Box Washers. Fiber – S&S Rocker Covers; Indian Power Plus…

Only 2 left!

James Gaskets Rocker Box Washers. Fiber – S&S Rocker Covers; Indian Power Plus… Dimensions: 0.25" x 0.44" x 0.030". Fiber material rocker cover...

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£32.07
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James Gaskets Shovel Exhaust Gasket & Mount Kit. Steel Core – 1966–1984 Shovel

Out of stock

James Gaskets Shovel Exhaust Gasket & Mount Kit. Steel Core – 1966–1984 Shovel Includes steel core gaskets; studs and nuts. OEM replacement ref...

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£32.07
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James Gaskets Shovel Exhaust Gasket & Mount Kit. Paper – 1966–1984 Shovel

Only 3 left!

James Gaskets Shovel Exhaust Gasket & Mount Kit. Paper – 1966–1984 Shovel Includes paper gaskets; incl. 4 studs; 2 acorn nuts; 2 lock washers. ...

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£32.07
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£32.07
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£27.14
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£24.97
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Gardner-Westcott Acorn Nut Exhaust Mount Kit – Exhaust to Head: 1984–2026 Big Twin…

Only 4 left!

Gardner-Westcott Acorn Nut Exhaust Mount Kit – Exhaust to Head: 1984–2026 Big Twin… Chrome. Incl. 4 nuts & washers. Used to mount exhaust to cy...

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£27.14
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£120.64
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Goodridge QD Fuel Crossover Line Clear Braided Stainless – Universal

Only 1 left!

Goodridge QD Fuel Crossover Line Clear Braided Stainless – Universal No more fumbling to prevent a fuel spill during dual tank removals. Compatible...

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£120.64
£118.96
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£120.64
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Goodridge QD Fuel Crossover Line Black Braided Textile – Universal

Out of stock

Goodridge QD Fuel Crossover Line Black Braided Textile – Universal No more fumbling to prevent a fuel spill during dual tank removals. Compatible w...

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£120.64
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£120.64
£118.96
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£201.82
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Goodridge Braided Oil Line Kit – 1999 FLT/Touring; FLHT

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Goodridge Braided Oil Line Kit – 1999 FLT/Touring; FLHT A complete pre-installed oil line kit with an outer diameter of just 14.5mm. A PTFE inner t...

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£225.12
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Goodridge Braided Oil Line Kit – 1994–1998 FLT/Touring; FLHT

Out of stock

Goodridge Braided Oil Line Kit – 1994–1998 FLT/Touring; FLHT A complete pre-installed oil line kit with an outer diameter of just 14.5mm. A PTFE in...

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Goodridge Braided Oil Line Kit – 1992–1999 Softail

Out of stock

Goodridge Braided Oil Line Kit – 1992–1999 Softail A complete pre-installed oil line kit with an outer diameter of just 14.5mm. A PTFE inner tubing...

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£139.79
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Jims Pinion Gear Spacer – 1954–1989 Big Twin

Only 2 left!

Jims Pinion Gear Spacer – 1954–1989 Big Twin JIMS, pinion gear spacer Fitment 54-89 Big Twin (NU) Product Details Brand: Jims Category: MOTOR PA...

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£87.23
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James Gaskets Motor Gasket Set. 1200/1340 Flatheads – 1936–1948 Flathead 74 & 80 Cu.I (1200 &…

Only 3 left!

James Gaskets Motor Gasket Set. 1200/1340 Flatheads – 1936–1948 Flathead 74 & 80 Cu.I (1200 &… 0.020" embossed copper head gaskets; RCM (Ru...

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James Gaskets Motor Gasket & Seal Kit. Knuckleheads – 1936–1947 Knucklehead 61 & 74 Cu.I (1000…

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James Gaskets Motor Gasket & Seal Kit. Knuckleheads – 1936–1947 Knucklehead 61 & 74 Cu.I (1000… 0.045" Teflon® coated head gaskets with Fir...

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£11.27
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CV Performance Float Bowl Screw Kit for Keihin CV. Stainless Allen – 1990–2006 Big Twin; 1988–2006 XL…

Only 2 left!

CV Performance Float Bowl Screw Kit for Keihin CV. Stainless Allen – 1990–2006 Big Twin; 1988–2006 XL… Stainless allenhead kit for Keihin CV carbur...

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£25.81
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CV Performance Main Jet Cv Carb .200 – 1989–2006 Big Twin; 1988–2006 XL…

Only 3 left!

CV Performance Main Jet Cv Carb .200 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .200 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£25.81
£24.22
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CV Performance Main Jet Cv Carb .195 – 1989–2006 Big Twin; 1988–2006 XL…

Only 1 left!

CV Performance Main Jet Cv Carb .195 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .195 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£25.81
£24.22
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£25.81
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£24.22
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CV Performance Main Jet Cv Carb .190 – 1989–2006 Big Twin; 1988–2006 XL…

Only 3 left!

CV Performance Main Jet Cv Carb .190 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .190 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£25.81
£24.22
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£25.81
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£24.22
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CV Performance Main Jet Cv Carb .185 – 1989–2006 Big Twin; 1988–2006 XL…

Only 1 left!

CV Performance Main Jet Cv Carb .185 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .185 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£25.81
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£25.81
£24.22
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£25.81
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£24.22
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CV Performance Main Jet Cv Carb .180 – 1989–2006 Big Twin; 1988–2006 XL…

Only 1 left!

CV Performance Main Jet Cv Carb .180 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .180 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£25.81
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£25.81
£24.22
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£25.81
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£25.81
£24.22
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CV Performance Main Jet Cv Carb .175 – 1989–2006 Big Twin; 1988–2006 XL…

Out of stock

CV Performance Main Jet Cv Carb .175 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .175 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£25.81
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£25.81
£24.22
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£24.22
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£25.81
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£25.81
£24.22
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£24.22

CV Performance Main Jet Cv Carb .170 – 1989–2006 Big Twin; 1988–2006 XL…

Out of stock

CV Performance Main Jet Cv Carb .170 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .170 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£25.81
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£25.81
£24.22
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£24.22
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£5.78
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£5.78
£5.30
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£5.30

CV Performance Main Jet Cv Carb .200 – 1989–2006 Big Twin; 1988–2006 XL…

Only 3 left!

CV Performance Main Jet Cv Carb .200 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .200 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£5.78
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£5.78
£5.30
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£5.78
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£5.30

CV Performance Main Jet Cv Carb .190 – 1989–2006 Big Twin; 1988–2006 XL…

Only 3 left!

CV Performance Main Jet Cv Carb .190 – 1989–2006 Big Twin; 1988–2006 XL… CVP, main jet cv carb .190 Fitment 89-06 Big Twin; 88-06 XL Sportster (NU)...

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£5.78
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£5.78
£5.30
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£28.27
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£28.27
£26.53
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£26.53

CV Performance Slow Jet (Pilot Jet) Keihin CV Carb. 5-Pk. .50 – 1989–2006 Big Twin; 1988–2006 XL…

Only 3 left!

CV Performance Slow Jet (Pilot Jet) Keihin CV Carb. 5-Pk. .50 – 1989–2006 Big Twin; 1988–2006 XL… CVP, Slow jet (pilot jet) Keihin CV carb. 5-pk. ....

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£28.27
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£28.27
£26.53
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£29.50
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£27.69
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CV Performance Accelerator Pump Nozzle Kit for CV Carb – 1990–2006 Big Twin; 1988–2006 XL…

Only 1 left!

CV Performance Accelerator Pump Nozzle Kit for CV Carb – 1990–2006 Big Twin; 1988–2006 XL… Provides a finer mist spray; which improves pick-up. Als...

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£27.69
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