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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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Mikuni Air Jet 1.0

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Mikuni Air Jet 1.0 Mikuni, air jet 1.0 Product Details Brand: Mikuni Category: INTAKE > JETS > JETS MIKUNI Unit: 1 Product code: 587113

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Mikuni Air Jet 0.50

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Mikuni Air Jet 0.50 Mikuni, air jet 0.50 Product Details Brand: Mikuni Category: INTAKE > JETS > JETS MIKUNI Unit: 1 Product code: 587112

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£5.46
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Mikuni Air Jet (Blank)

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Mikuni Air Jet (Blank) Mikuni, air jet (blank) Product Details Brand: Mikuni Category: INTAKE > JETS > JETS MIKUNI Unit: 1 Product code:...

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£2.22
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Mikuni Jet Needle E-ring

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Mikuni Jet Needle E-ring Mikuni, jet needle e-ring Product Details Brand: Mikuni Category: INTAKE > JETS > JETS MIKUNI Unit: 1 Product c...

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£466.69
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Mikuni HSR45 Carb Only

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Mikuni HSR45 Carb Only Supplied without choke cable! Product Details Brand: Mikuni Category: INTAKE > CARBURETORS Unit: KIT Product code: 5...

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Mikuni HSR42 Carb Only

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Mikuni HSR42 Carb Only Supplied without choke cable Product Details Brand: Mikuni Category: INTAKE > CARBURETORS Unit: KIT Product code: 58...

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Mikuni HSR42 Easy Carb Kit – 1994–2003 XL1200

Only 1 left!

Mikuni HSR42 Easy Carb Kit – 1994–2003 XL1200 The ''Easy carb kit'' requires the use of the stock CV manifold; choke cable; throttle cables and air...

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Mikuni HSR42 Easy Carb Kit – 1990–1999 Evo Big Twin with CV…

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Mikuni HSR42 Easy Carb Kit – 1990–1999 Evo Big Twin with CV… The ''Easy carb kit'' requires the use of the stock CV manifold; choke cable; throttle...

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£508.50 - £508.50
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MCS Breather Valve Spacer Set .110" to .145" – L1977–1999 Big Twin

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MCS Breather Valve Spacer Set .110" to .145" – L1977–1999 Big Twin 8-pack Incl. .110"; .115"; .120"; .125"; .130"; .135"; .140" and .145". Use with...

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James Gaskets James. Gasket Primary Inspection Cover. Rubber – 2004–2022 XL Sportster; 2008–2012 XR1200

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James Gaskets James. Gasket Primary Inspection Cover. Rubber – 2004–2022 XL Sportster; 2008–2012 XR1200 Molded silicone rubber. OEM replacement ref...

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James Gaskets O-ring Filler / Chain Inspection Cap Primary – 1991–2003 XL Sportster

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James Gaskets O-ring Filler / Chain Inspection Cap Primary – 1991–2003 XL Sportster OEM replacement reference 11188. Fitment 91-03 XL Sportster (NU...

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James Gaskets O-ring Transmission Fill Plug – 1987–1992 Big Twin

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James Gaskets O-ring Transmission Fill Plug – 1987–1992 Big Twin OEM replacement reference 11132. Fitment 87-92 Big Twin (NU) Product Details Bra...

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James Gaskets Oil Seal Rocker Arm – 1936–1947 Knucklehead

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James Gaskets Oil Seal Rocker Arm – 1936–1947 Knucklehead Replacement for OEM 17475-38; 120-38. Fitment 36-47 Knucklehead (NU) Product Details Br...

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James Gaskets Gasket Carburetor to Manifold. 1-1/4" Linkert – 1937–1951 45"; 74"; 80" Flatheads. With…

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James Gaskets Gasket Carburetor to Manifold. 1-1/4" Linkert – 1937–1951 45"; 74"; 80" Flatheads. With… .062" fiber reinforced paper. Used for 3-bol...

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James Gaskets Carburetor to Manifold Gasket – 1961–1965 45" (750cc) Servi-Cars…

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James Gaskets Carburetor to Manifold Gasket – 1961–1965 45" (750cc) Servi-Cars… .031" paper. OEM replacement reference 27414-61 Fitment 61-65 45" (...

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£119.77
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Dippert Twin Cam Aluminum Pushrod Cover Set. Black – 1999–2017 Twin Cam

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Dippert Twin Cam Aluminum Pushrod Cover Set. Black – 1999–2017 Twin Cam Black anodized. The High Tech sophisticated look is yours with these qualit...

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Dippert Evo B.T. Aluminum Pushrod Cover Set. Black – 1984–1999 Evo Big Twin

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Dippert Evo B.T. Aluminum Pushrod Cover Set. Black – 1984–1999 Evo Big Twin Black anodized. The High Tech sophisticated look is yours with these qu...

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Dippert Shovel Exhaust Flange Set – 1966–1984 Shovel

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Dippert Shovel Exhaust Flange Set – 1966–1984 Shovel Stainless steel. Weld-on flanges to mount the exhaust to the heads. Great help when building y...

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£96.32
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Dippert Panhead Aluminum Pushrod Cover Set. Silver – 1948–1965 PANHEAD

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Dippert Panhead Aluminum Pushrod Cover Set. Silver – 1948–1965 PANHEAD Silver anodized. The High Tech sophisticated look is yours with these qualit...

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£117.13
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Dippert Evo B.T. Aluminum Pushrod Cover Set. Silver – 1984–1999 Evo Big Twin

Out of stock

Dippert Evo B.T. Aluminum Pushrod Cover Set. Silver – 1984–1999 Evo Big Twin Silver anodized. The High Tech sophisticated look is yours with these ...

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£117.13 - £117.13
£117.13
£119.77
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£119.77
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£23.95
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James Gaskets Carb/Throttle Body to Air Cleaner Housing Gasket – CV Carburetor: 1995–2000 Evo Big Twin…

Only 2 left!

James Gaskets Carb/Throttle Body to Air Cleaner Housing Gasket – CV Carburetor: 1995–2000 Evo Big Twin… .055" paper. Fits between carb & air cl...

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£23.62
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£10.72
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James Gaskets Carb to Air Cleaner Housing Gasket. Keihin CV – 1990–1999 Evo Big Twin; 1988–2003 XL…

Only 3 left!

James Gaskets Carb to Air Cleaner Housing Gasket. Keihin CV – 1990–1999 Evo Big Twin; 1988–2003 XL… .031" fiber reinforced paper. OEM replacement r...

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£10.72
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£10.72
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James Gaskets Carb to Air Cleaner Housing Gasket. Keihin CV – 1990–1999 Evo Big Twin; 1988–2003 XL…

Only 3 left!

James Gaskets Carb to Air Cleaner Housing Gasket. Keihin CV – 1990–1999 Evo Big Twin; 1988–2003 XL… .031" fiber reinforced paper with a steel core....

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£10.72
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£10.57
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£67.17
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Feuling Cam Change Gasket & Seal Kit – 1999–2017 Twin Cam

Only 3 left!

Feuling Cam Change Gasket & Seal Kit – 1999–2017 Twin Cam Includes: Rocker box cover; breathers; cam cover and lifter block gaskets. Pushrod tu...

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£67.17
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