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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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£87.97
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Kuryakyn Stinger Trapdoor for Hyperchargers – All Classic Hypercharger Air Cleaners

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Kuryakyn Stinger Trapdoor for Hyperchargers – All Classic Hypercharger Air Cleaners Chrome. A cost effective way to increase airflow in any standar...

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£87.97
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£87.97
£71.99
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£49.52
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Kuryakyn Marquis Choke Knob Chrome – 1988–2006 XL Sportster; 1990–2006 Big…

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Kuryakyn Marquis Choke Knob Chrome – 1988–2006 XL Sportster; 1990–2006 Big… The Marquis choke knob cover installs neatly over the stock black plast...

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Kuryakyn Oil Line Cover & Transmission Shroud – 2002–2006 FLT/Touring

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Kuryakyn Oil Line Cover & Transmission Shroud – 2002–2006 FLT/Touring Chrome. Covers the oil lines and the rough cast area around the transmiss...

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£139.40
£123.26
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£107.78
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Kuryakyn Oil Cooler Cover. Chrome – 2011–2016 FLHT; FLTR; FLHR…

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Kuryakyn Oil Cooler Cover. Chrome – 2011–2016 FLHT; FLTR; FLHR… Replaces the stock black cover; and covers the oil lines without constricting airfl...

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£107.78
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£107.78
£91.09
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£17.95
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Kuryakyn Breather Bolts – 1999–2017 Twin Cam

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Kuryakyn Breather Bolts – 1999–2017 Twin Cam 1-1/4" Overall Length (stock length). Incl. pre-formed rubber breather hose that fits some Twin Cam mo...

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£98.79
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Kuryakyn Oil Filler Spout Cover. Chrome – 1993–2006 DRESSERS; ROAD KINGS; Road…

Out of stock

Kuryakyn Oil Filler Spout Cover. Chrome – 1993–2006 DRESSERS; ROAD KINGS; Road… Chrome plated steel to clean-up the area around your oil filler plu...

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£67.29
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£61.93
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MCS Head Bolt Bridge Cover Set. Smooth, Chrome – 2004–2022 XL Sportster

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MCS Head Bolt Bridge Cover Set. Smooth, Chrome – 2004–2022 XL Sportster Chrome plated aluminum construction. Slip-fit installation around the spark...

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£61.93
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£59.13
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MCS Head Bolt Bridge Cover Set. Finned, Silver – 2004–2022 XL Sportster

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MCS Head Bolt Bridge Cover Set. Finned, Silver – 2004–2022 XL Sportster Aluminum construction. Slip-fit installation around the spark plug. These h...

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MCS Head Bolt Bridge Cover Set. Finned, Black – 1999–2017 Fuel Injected Twin Cam

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MCS Head Bolt Bridge Cover Set. Finned, Black – 1999–2017 Fuel Injected Twin Cam Aluminum construction. Slip-fit installation around the spark plug...

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£71.73
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£9.44
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MCS Oil Hose Tee. 3-Way. Black

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MCS Oil Hose Tee. 3-Way. Black 3-way T-connector. Black plastic. 3x 5/16" (5.95mm) OD connectors. May be used with O-Clips or hose clamps. Note: No...

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MCS Oil Hose Tee. 3-Way. Black

Only 3 left!

MCS Oil Hose Tee. 3-Way. Black 3-way T-connector. Black plastic. 2x 3/16" (4.35mm) & 1x 5/16" (5.80mm) OD connectors. May be used with O-Clips ...

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James Gaskets Rocker Cover Gasket Kit. XR1200 – 2008–2012 XR1200

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James Gaskets Rocker Cover Gasket Kit. XR1200 – 2008–2012 XR1200 Includes silicone beaded paper rocker box base gaskets; rubber rocker cover gasket...

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James Gaskets Linkert DC-series Carburetor Gasket & Seal Kit – 1957–1966 Big Twin; XL Sportster. With…

Only 2 left!

James Gaskets Linkert DC-series Carburetor Gasket & Seal Kit – 1957–1966 Big Twin; XL Sportster. With… Note: will not fit 36-65 Linkert M-serie...

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£20.29
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James Gaskets DIY Foam Battery Pad – Universal

Only 3 left!

James Gaskets DIY Foam Battery Pad – Universal Used to stop battery rattle. Self adhesive on one side. Large enough to help you out in virtually an...

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James Gaskets Battery Pad Set. Foam – 1980–1992 FLT/Touring

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James Gaskets Battery Pad Set. Foam – 1980–1992 FLT/Touring Replacement cushion foam battery pads for H-D models. 3/16" (4.8mm) weather resistant f...

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£32.07
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£31.63
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James Gaskets Shovel Exhaust Gasket & Mount Kit. Knitted Wire – 1966–1984 Shovel

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James Gaskets Shovel Exhaust Gasket & Mount Kit. Knitted Wire – 1966–1984 Shovel Includes knitted stainless steel wire gaskets and acorn nuts. ...

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£31.63
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£32.09
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£31.64
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James Gaskets Shovel Exhaust Gasket & Mount Kit. Copper Crush – 1966–1984 Shovel

Only 2 left!

James Gaskets Shovel Exhaust Gasket & Mount Kit. Copper Crush – 1966–1984 Shovel Includes Copper Crush Ring gaskets and acorn nuts. OEM replace...

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£32.09
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£32.09
£31.64
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£31.64
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£7.15
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£6.81
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James Gaskets Evo Exhaust Mount Washer. Chrome – 1984–1992 Big Twin; 1986–1992 XL…

Only 2 left!

James Gaskets Evo Exhaust Mount Washer. Chrome – 1984–1992 Big Twin; 1986–1992 XL… 5/16 ID x 11/16" OD x .090" thick. OEM style washer. Used betwee...

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£7.15
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£6.81
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£10.51
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James Gaskets Rocker Box Seal Washers. Rubber on Steel – 1984–1999 Evo Big Twin; 1986–2008 XL…

Only 2 left!

James Gaskets Rocker Box Seal Washers. Rubber on Steel – 1984–1999 Evo Big Twin; 1986–2008 XL… Rubber on steel replacement rocker box cover seal wa...

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£10.51
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£10.01
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£97.87
£98.63
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£98.63

James Gaskets Primary Cover Gasket & Seal Kit. Foamet – 2007–2017 Softail; 2006–2017 Dyna

Only 4 left!

James Gaskets Primary Cover Gasket & Seal Kit. Foamet – 2007–2017 Softail; 2006–2017 Dyna Complete outer & inner primary gasket set includi...

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£97.87 - £97.87
£97.87
£98.63
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£98.63
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£23.65
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£23.32
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James Gaskets James. Gasket Primary Inspection Cover. Foamet – 2004–2022 XL Sportster; 2008–2012 XR1200

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James Gaskets James. Gasket Primary Inspection Cover. Foamet – 2004–2022 XL Sportster; 2008–2012 XR1200 Foamet (Foam Coated Metal). OEM replacement...

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£23.65
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James Gaskets Primary Cover Gasket Kit. Foamet – 1977–1990 XL Sportster

Only 3 left!

James Gaskets Primary Cover Gasket Kit. Foamet – 1977–1990 XL Sportster Complete primary cover gasket kit for Sportster models. Foamet = An aluminu...

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£55.35
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James Gaskets Primary Cover Gasket Kit. Foamet – 1967–1976 XL Sportster

Only 3 left!

James Gaskets Primary Cover Gasket Kit. Foamet – 1967–1976 XL Sportster Complete primary cover gasket kit for Sportster models. Foamet = An aluminu...

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£55.35 - £55.35
£55.35
£55.77
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James Gaskets Primary Cover Gasket & Seal Kit. Foamet with Bead – 2007–2016 FLT/Touring; 2009–2016 Trike

Only 4 left!

James Gaskets Primary Cover Gasket & Seal Kit. Foamet with Bead – 2007–2016 FLT/Touring; 2009–2016 Trike Complete outer & inner primary gas...

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£95.13 - £95.13
£95.13
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