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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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£26.88
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James Gaskets Oil Pump Body to Case Gasket. Mylar – L1980–1991 Big Twin

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James Gaskets Oil Pump Body to Case Gasket. Mylar – L1980–1991 Big Twin OEM replacement reference 26273-80; 26273-80A; 26273-80B. Mylar is a polyes...

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£26.51
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£26.51
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£20.51
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£20.22
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£20.22

James Gaskets Oil Pump Body to Cover Gasket. .031" Paper – L1980–1991 Big Twin

Only 2 left!

James Gaskets Oil Pump Body to Cover Gasket. .031" Paper – L1980–1991 Big Twin .031" thick fiber reinforced paper. OEM replacement reference 26276-...

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£20.22
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£16.74
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James Gaskets Oil Pump Body to Case Gasket. .031" Paper – 1992–1999 Evo Big Twin

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James Gaskets Oil Pump Body to Case Gasket. .031" Paper – 1992–1999 Evo Big Twin .031" fiber reinforced paper. OEM replacement reference 26273-92A....

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£16.74
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£16.74
£16.51
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£20.48
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£20.20
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£20.20

James Gaskets Oil Pump Body to Case Gasket. .031" Paper – L1980–1991 Big Twin

Only 3 left!

James Gaskets Oil Pump Body to Case Gasket. .031" Paper – L1980–1991 Big Twin .031" thick fiber reinforced paper. OEM replacement reference 26273-8...

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£20.48
£20.20
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£7.47
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£6.45
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MCS Breather Banjo Bolt. Hex Head. Chrome – 1991–2022 XL Sportster

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MCS Breather Banjo Bolt. Hex Head. Chrome – 1991–2022 XL Sportster 1/2"-13 threaded. Used on the head breathing system of XL Sportsters. Fitment 91...

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£7.47
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£21.88
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James Gaskets James O-ring, Breather Bolt – 2004–2022 XL Sportster

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James Gaskets James O-ring, Breather Bolt – 2004–2022 XL Sportster 2 used. Used on 999487 and similar 1/2-13 breather bolts. OEM replacement refere...

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£21.58
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MCS Muffler P-clamp 3" Polished – 1958–1984 FL; Universal

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MCS Muffler P-clamp 3" Polished – 1958–1984 FL; Universal Polished universal P-clamp; made from stainless steel; with an 3" (7.6cm) inside diameter...

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£14.59
£15.29
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£79.48
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James Gaskets Gasket Primary Cover. .062" Paper/Silicome – 65-E82 4-Speed Big Twin

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James Gaskets Gasket Primary Cover. .062" Paper/Silicome – 65-E82 4-Speed Big Twin 8-hole. .062" thick fiber reinforced paper with a silicone bead....

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James Gaskets Gasket Transmission Side Cover. .020" Paper – 1941–1973 45" Flathead & Servi-Car

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James Gaskets Gasket Transmission Side Cover. .020" Paper – 1941–1973 45" Flathead & Servi-Car .020" fiber reinforced paper. OEM replacement re...

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£39.61
£39.91
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£39.91

James Gaskets Oil Seal. Generator End Cap – 82-E84 XL Sportster

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James Gaskets Oil Seal. Generator End Cap – 82-E84 XL Sportster OEM replacement reference 29911-82. Fitment 82-E84 XL Sportster (NU) Product Detail...

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£39.91
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£68.10
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£68.10
£58.76
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Gardner-Westcott Stud, Crankcase/Footrest – 1980–2003 XL Sportster

Out of stock

Gardner-Westcott Stud, Crankcase/Footrest – 1980–2003 XL Sportster 1 used; 1/2-13 to 1/2-13 x 3 1/2" Fitment 80-03 XL Sportster Product Details B...

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£68.10
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£58.76
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£29.88
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£29.46
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James Gaskets James Rubber Boot, Accelerator Pump Cap – 1976–2006 B.T.; XL with Carburetor

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James Gaskets James Rubber Boot, Accelerator Pump Cap – 1976–2006 B.T.; XL with Carburetor Replacement item. Fits all Keihin butterfly & CV car...

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£29.46
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MCS Driven Gear, Oil Pump. 25T – 1939–1972 Big Twin

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MCS Driven Gear, Oil Pump. 25T – 1939–1972 Big Twin Keyhole may be too small; may require modification needed before installation. key is 0.94 and ...

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£23.68
£26.53
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£65.21
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£65.21
£59.69
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Colony 45" Cylinder Head Stud Kit – 1929–1950 45" Flathead with Cast Iron…

Only 2 left!

Colony 45" Cylinder Head Stud Kit – 1929–1950 45" Flathead with Cast Iron… Black parkerized. Reproduction studs with 3/8-16 threads. Accurately mac...

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£65.21
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£59.69
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£59.69
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£6.42
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£6.42
£5.90
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£5.90

Colony Air Cleaner Cover Mount Screw Kit. Chrome – 1967–1978 Big Twin; XL Sportster

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Colony Air Cleaner Cover Mount Screw Kit. Chrome – 1967–1978 Big Twin; XL Sportster OEM reproduction of the OEM domed slotted tapered head bolts. C...

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£6.42
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£5.90
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£5.00
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Colony Oil Line Fitting, Straight. Chrome – Primary Vent: 1966–1984 FL; 71-E84 FX…

Only 2 left!

Colony Oil Line Fitting, Straight. Chrome – Primary Vent: 1966–1984 FL; 71-E84 FX… Oil line nipple 1/8-27 NPT threaded to 3/8" (9.5mm) inside diame...

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£5.00
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Colony Cam Cover Oil Passage Bolt. Chrome – 1963–1969 Big Twin

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Colony Cam Cover Oil Passage Bolt. Chrome – 1963–1969 Big Twin Compatible with stock cam covers. Fitment 63-69 Big Twin (NU) Product Details Bran...

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£13.72
£15.81
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£26.12
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James Gaskets Fire Ring Exhaust Gaskets (10) – 1966–1984 Shovel

Only 3 left!

James Gaskets Fire Ring Exhaust Gaskets (10) – 1966–1984 Shovel Fiber with copper fire ring. OEM replacement reference 65834-68A; 65835-86T. Fitmen...

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£26.12
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James Gaskets Round Copper Exhaust Gaskets (10) – 1966–1984 Shovel

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James Gaskets Round Copper Exhaust Gaskets (10) – 1966–1984 Shovel Custom Round design; with a stand-up edge which allows some crushing for improve...

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£26.12
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£43.79
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£43.79
£42.87
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£42.87

Colony Venturi for 1-1/2" Linkert Carb – M61B/61/36A/36/35/35T/35TP

Out of stock

Colony Venturi for 1-1/2" Linkert Carb – M61B/61/36A/36/35/35T/35TP 1-1/8" venturi for 1-1/2" M61B; 61; 36A; 36; 35; 35T; 35TP carburetor. Aluminum...

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£42.87
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£42.16
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£41.27
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£41.27

Colony Venturi for 1-1/4" Linkert Carb – M31/41/42/54/54B

Only 2 left!

Colony Venturi for 1-1/4" Linkert Carb – M31/41/42/54/54B 1" venturi for 1-1/4" M31/41/42/54/54B carburetor. Aluminum venturi for Linkert carbureto...

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£11.97
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£11.71
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Colony Linkert Support Bracket – 1939–1948 Big Twin UL SV

Only 2 left!

Colony Linkert Support Bracket – 1939–1948 Big Twin UL SV Parkerized Fitment 39-48 Big Twin UL SV (NU) Product Details Brand: Colony Category: I...

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£11.97
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£11.71
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£17.39
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£17.01
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£17.01

Colony Linkert Support Bracket – 1941–1953 OHV Big Twin

Only 2 left!

Colony Linkert Support Bracket – 1941–1953 OHV Big Twin Parkerized Fitment 41-53 OHV Big Twin (NU) Product Details Brand: Colony Category: INTAK...

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£17.39
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£17.01
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Colony Gas Strainer Cap. 42-65 Style. Chrome – 1942–1965 H-D

Only 2 left!

Colony Gas Strainer Cap. 42-65 Style. Chrome – 1942–1965 H-D Chrome plated Striped Straight 42-65 style. Exact reproduction or the original item. O...

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