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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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Colony Oil Filter Adapter Screw Kit. Acorn – 1999–2017 Dyna; 1999–2016 FLT/Touring

Only 2 left!

Colony Oil Filter Adapter Screw Kit. Acorn – 1999–2017 Dyna; 1999–2016 FLT/Touring Kit includes studs with chrome plated acorn nuts. Fitment 99-17 ...

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Colony Oil Filter Adapter Screw Kit. Acorn – 1992–1999 Big Twin

Only 2 left!

Colony Oil Filter Adapter Screw Kit. Acorn – 1992–1999 Big Twin Kit includes studs with chrome plated acorn nuts. Fitment 92-99 Big Twin (Excl. Twi...

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James Gaskets Gasket & O-ring Kit Panhead Style Filter – 1948–1964 OHV Big Twin & 1948 Flathead…

Only 2 left!

James Gaskets Gasket & O-ring Kit Panhead Style Filter – 1948–1964 OHV Big Twin & 1948 Flathead… Replacement for 900270 Panhead style oil f...

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MCS Nut, Pinion Shaft Gear – 1977–1990 XL Sportster

Only 3 left!

MCS Nut, Pinion Shaft Gear – 1977–1990 XL Sportster 11/16-18 x 1/4 x 1-3/16 hex. Repl. 7913. Note: Nut has left hand thread. Fitment 77-90 XL Sport...

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James Gaskets Distributor Base Gasket – 1936–1947 Knucklehead; 1948–1965…

Only 2 left!

James Gaskets Distributor Base Gasket – 1936–1947 Knucklehead; 1948–1965… .031" thick paper. OEM replacement reference 32521-36 / early 1541-36. Fi...

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James Gaskets Gasket Mainshaft Seal Retainer – 1952–1956 K; KH; 57-E84 XL Sportster

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James Gaskets Gasket Mainshaft Seal Retainer – 1952–1956 K; KH; 57-E84 XL Sportster Fiber reinforced paper with a silicone coating on both sides. U...

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James Gaskets Oil Pump Body to Outer Cover Gasket. Paper – 1952–1956 K; KH; 57-E62 & 1972–1976 XL…

Only 2 left!

James Gaskets Oil Pump Body to Outer Cover Gasket. Paper – 1952–1956 K; KH; 57-E62 & 1972–1976 XL… Fiber reinforced paper. OEM replacement refe...

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MCS WOODRUFF KEYS, SPROCKET SHAFT – 1956–1971 FL; FX & All S&S SPROCKET…

Only 3 left!

MCS WOODRUFF KEYS, SPROCKET SHAFT – 1956–1971 FL; FX & All S&S SPROCKET… WOODRUFF KEYS, SPROCKET SHAFT Fitment 56-71 FL; FX (NU) & all ...

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MCS Woodruff Keys – 54-E75; 1987–1989 Big Twin: Pinion Gear…

Only 4 left!

MCS Woodruff Keys – 54-E75; 1987–1989 Big Twin: Pinion Gear… Pinion shaft / oil pump shaft. OEM replacement reference 23985-54. Fitment 54-E75; 87-...

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MCS Wooruff Keys, Crankpin & Pinion Shaft – L1981–1999 Big Twin : Crankpin.…

Only 3 left!

MCS Wooruff Keys, Crankpin & Pinion Shaft – L1981–1999 Big Twin : Crankpin.… Repl. 11218. Fitment L81-99 Big Twin (Excl. TC) (NU) : crankpin. L...

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MCS Woodruff Keys, Crankpin – 52-E81 K; XL Sportster; 30-E81 Big Twin…

Only 1 left!

MCS Woodruff Keys, Crankpin – 52-E81 K; XL Sportster; 30-E81 Big Twin… Two used. Repl. 23985-18. Fitment 52-E81 K; XL Sportster; 30-E81 Big Twin; 3...

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MCS Woodruff Keys – 52-E81 K; XL Sportster; 12-E81 Big Twin…

Only 3 left!

MCS Woodruff Keys – 52-E81 K; XL Sportster; 12-E81 Big Twin… Pinion & sprocket shaft Fitment 52-E81 K; XL Sportster; 12-E81 Big Twin; 32-73 45"...

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MCS Hose Separator. Chrome

Only 2 left!

MCS Hose Separator. Chrome Aluminum. For use with 5/16" & 3/8" oil and fuel hoses. Eyelet inside diameter is 1.5cm. Product Details Brand: MC...

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MCS Retainer, Pinion Shaft Bearing – 1954–1976 XL Sportster; 1955–1957 Big…

Only 3 left!

MCS Retainer, Pinion Shaft Bearing – 1954–1976 XL Sportster; 1955–1957 Big… Roller bearing retainer (cage) only; used on right side crankcase. Note...

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MCS Thrust Washers, Pinion Shaft – 1954–1979 XL Sportster; 1955–1957 Big…

Only 3 left!

MCS Thrust Washers, Pinion Shaft – 1954–1979 XL Sportster; 1955–1957 Big… Thrust washers, pinion shaft Fitment 54-79 XL Sportster; 55-57 Big Twin (...

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K&N Power Kleen Air Filter Cleaner. 355cc

Only 3 left!

K&N Power Kleen Air Filter Cleaner. 355cc 12-oz (355cc) pump spray bottle. Recommended to clean K&N cotton air filter elements. Bottle is l...

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K&N Air Filter Oil. 8-Oz Squeez Bottle

Only 3 left!

K&N Air Filter Oil. 8-Oz Squeez Bottle 8oz (227 gram) squeeze bottle to service multiple filter elements. Genuine K&N oil specially formula...

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Goodridge Delphi EFI External Fuel Line Kit, Clear Coated – 2007–2020 XL Sportster

Out of stock

Goodridge Delphi EFI External Fuel Line Kit, Clear Coated – 2007–2020 XL Sportster Snap-on for Delphi EFI (Electronic Fuel Injection) models. Durab...

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£101.81
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£100.39
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Goodridge Delphi EFI External Fuel Line Kit. Black Coated – 2007–2020 XL Sportster

Out of stock

Goodridge Delphi EFI External Fuel Line Kit. Black Coated – 2007–2020 XL Sportster Ready to snap-on for Delphi EFI (Electronic Fuel Injection) mode...

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£101.81
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£100.39
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£98.78
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Goodridge Delphi EFI External Fuel Line Kit, Clear Coated – 2016–2017 Softail; 2017 FXDLS; 2008–2016…

Only 1 left!

Goodridge Delphi EFI External Fuel Line Kit, Clear Coated – 2016–2017 Softail; 2017 FXDLS; 2008–2016… Ready to snap-on for Delphi EFI (Electronic F...

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£98.78
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Goodridge Delphi EFI External Fuel Line Kit. Black Coated – 2016–2017 Softail; 2017 FXDLS; 2008–2016…

Only 2 left!

Goodridge Delphi EFI External Fuel Line Kit. Black Coated – 2016–2017 Softail; 2017 FXDLS; 2008–2016… Ready to snap-on for Delphi EFI (Electronic F...

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£98.78
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£56.38
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Goodridge Delphi EFI External Fuel Line Kit, Clear Coated – 2001–2015 Softail; 2002–2006…

Only 1 left!

Goodridge Delphi EFI External Fuel Line Kit, Clear Coated – 2001–2015 Softail; 2002–2006… Ready to snap-on for Delphi EFI (Electronic Fuel Injectio...

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£56.38
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£53.68
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£56.38
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Goodridge Delphi EFI External Fuel Line Kit. Black Coated – 2001–2015 Softail; 2002–2006…

Only 1 left!

Goodridge Delphi EFI External Fuel Line Kit. Black Coated – 2001–2015 Softail; 2002–2006… Ready to snap-on for Delphi EFI (Electronic Fuel Injectio...

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£56.38
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£56.38
£53.68
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Goodridge 6 JIC Oil Line Fitting, 1/4". 45°. Chrome

Out of stock

Goodridge 6 JIC Oil Line Fitting, 1/4". 45°. Chrome -6 JIC to 1/4" NPT. Used with Goodridge pre-assembled universal braided oil lines with -6 JIC s...

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