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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 Mount Bolt Linkert Carburetor. Extended Length – All Linkert Carburetors; with Extension

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Colony Mount Bolt Linkert Carburetor. Extended Length – All Linkert Carburetors; with Extension Zinc plated. 15/16" extra long. For use with carbur...

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£9.46
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£9.46
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£10.29
£10.29 - £10.29
£10.29
£9.46
£9.46 - £9.46
£9.46

Colony Mount Bolt Linkert Carburetor. Standard Length – All Linkert Carburetors

Out of stock

Colony Mount Bolt Linkert Carburetor. Standard Length – All Linkert Carburetors Zinc plated. Accurate reproduction of the OEM Linkert carburetor in...

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£10.29
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£9.46
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£16.47
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£16.11
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£16.11

Colony Linkert Carb Bowl Lock Nut Kit – 1930–1965 H-D

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Colony Linkert Carb Bowl Lock Nut Kit – 1930–1965 H-D Zinc; for models with Linkert carb Fitment 30-65 H-D (NU) Product Details Brand: Colony Ca...

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£16.47
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£16.47
£16.11
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£16.11
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£38.17
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£38.17
£37.71
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£37.71

Colony Crankcase Bolt Kit – 1937–1973 45" SV

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Colony Crankcase Bolt Kit – 1937–1973 45" SV Zinc; stock style Fitment 37-73 45" SV (NU) Product Details Brand: Colony Category: MOTOR PARTS >...

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£38.17
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£38.17
£37.71
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£37.71
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£55.71
£55.71 - £55.71
£55.71
£50.63
£50.63 - £50.63
£50.63

Colony Crankcase Bolt Kit – 1940–1948 74/80" SV

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Colony Crankcase Bolt Kit – 1940–1948 74/80" SV Zinc; stock style Fitment 40-48 74/80" SV (NU) Product Details Brand: Colony Category: MOTOR PAR...

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£55.71
£50.63
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£50.63
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£50.63
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£50.63

Colony Crankcase Bolt Kit – 1936–1939 74/80" SV

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Colony Crankcase Bolt Kit – 1936–1939 74/80" SV Zinc; stock style Fitment 36-39 74/80" SV (NU) Product Details Brand: Colony Category: MOTOR PAR...

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£55.71
£50.63
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£50.63
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£50.63
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£50.63

Colony Crankcase Bolt Kit – 1979–1995 Big Twin

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Colony Crankcase Bolt Kit – 1979–1995 Big Twin Hex zinc Fitment 79-95 Big Twin (NU) Product Details Brand: Colony Category: MOTOR PARTS > CRA...

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£55.71
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£55.71
£50.63
£50.63 - £50.63
£50.63
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£55.71
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£55.71
£50.63
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£50.63

Colony Crankcase Bolt Kit – 1970–1978 Shovel

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Colony Crankcase Bolt Kit – 1970–1978 Shovel Hex zinc Fitment 70-78 Shovel (NU) Product Details Brand: Colony Category: MOTOR PARTS > CRANKCA...

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£55.71
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£55.71
£50.63
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£50.63
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£55.71
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£55.71
£50.63
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£50.63

Colony Crankcase Bolt Kit – 1965–1969 PAN & EARLY SHOVEL

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Colony Crankcase Bolt Kit – 1965–1969 PAN & EARLY SHOVEL Hex zinc Fitment 65-69 PAN & EARLY SHOVEL (NU) Product Details Brand: Colony Ca...

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£55.71
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£55.71
£50.63
£50.63 - £50.63
£50.63
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£55.71
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£55.71
£50.63
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£50.63

Colony Crankcase Bolt Kit – 1948–1964 Panhead

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Colony Crankcase Bolt Kit – 1948–1964 Panhead Hex zinc Fitment 48-64 Panhead (NU) Product Details Brand: Colony Category: MOTOR PARTS > CRANK...

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£55.71
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£55.71
£50.63
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£50.63
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£55.71
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£55.71
£50.63
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£50.63

Colony Crankcase Bolt Kit – 1940–1947 KNUCKLE

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Colony Crankcase Bolt Kit – 1940–1947 KNUCKLE Hex zinc Fitment 40-47 KNUCKLE (NU) Product Details Brand: Colony Category: MOTOR PARTS > CRANK...

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£55.71
£50.63
£50.63 - £50.63
£50.63
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£55.71
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£55.71
£50.63
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Colony Crankcase Bolt Kit – 1936–1939 Knucklehead

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Colony Crankcase Bolt Kit – 1936–1939 Knucklehead Hex zinc Fitment 36-39 Knucklehead (NU) Product Details Brand: Colony Category: MOTOR PARTS &g...

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£55.71
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£55.71
£50.63
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£50.63
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£19.53 - £19.53
£19.53
£22.50
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£22.50

Colony Early Crankcase Nuts – 1911-1929 V-TWIN; 1930–1934 SINGLES…

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Colony Early Crankcase Nuts – 1911-1929 V-TWIN; 1930–1934 SINGLES… Reproduction zinc plated nuts as used on 1911-1929 V-Twins; 30-34 singles and 29...

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£19.53 - £19.53
£19.53
£22.50
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£22.50
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£18.75
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£18.75
£18.35
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£18.35

Colony Panhead Rocker Arm Stud Flex Nut Set – 1948–1965 Panhead

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Colony Panhead Rocker Arm Stud Flex Nut Set – 1948–1965 Panhead Zinc plated. OEM style reproduction. Used to install the rocker arm housings to the...

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£18.75
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£18.75
£18.35
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£18.35
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£19.11 - £19.11
£19.11
£22.01
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Colony Knuckle Rocker Box Bolt Kit. Zinc – 1936–1947 Knucklehead

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Colony Knuckle Rocker Box Bolt Kit. Zinc – 1936–1947 Knucklehead Zinc plated. OEM style reproduction. Hex bolts; machined from a solid steel bar; l...

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£19.11 - £19.11
£19.11
£22.01
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£22.01
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£27.51
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£27.51
£27.17
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£27.17

Colony Cam Cover Mount Kit, OEM Style – 1937–1973 45" SV

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Colony Cam Cover Mount Kit, OEM Style – 1937–1973 45" SV Zinc Fitment 37-73 45" SV (NU) Product Details Brand: Colony Category: MOTOR PARTS >...

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£27.51
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£27.51
£27.17
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£27.17
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£14.23 - £14.23
£14.23
£16.39
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£16.39

Colony Cam Cover Mount Kit, OEM Style – 1971–1980 XL Sportster

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Colony Cam Cover Mount Kit, OEM Style – 1971–1980 XL Sportster Zinc Fitment 71-80 XL Sportster (NU) Product Details Brand: Colony Category: MOTO...

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£14.23 - £14.23
£14.23
£16.39
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£16.39
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£21.56 - £21.56
£21.56
£24.84
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£24.84

Colony Cam Cover Mount Kit, OEM Style – 1954–1970 XL Sportster

Out of stock

Colony Cam Cover Mount Kit, OEM Style – 1954–1970 XL Sportster Zinc Fitment 54-70 XL Sportster (NU) Product Details Brand: Colony Category: MOTO...

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£21.56 - £21.56
£21.56
£24.84
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£24.84
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£10.82 - £10.82
£10.82
£11.71
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£11.71

Colony Cam Cover Mount Kit, OEM Style – 1970–1980 Shovel

Out of stock

Colony Cam Cover Mount Kit, OEM Style – 1970–1980 Shovel Zinc Fitment 70-80 Shovel (NU) Product Details Brand: Colony Category: MOTOR PARTS >...

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£10.82 - £10.82
£10.82
£11.71
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£11.71
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£23.18 - £23.18
£23.18
£26.71
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£26.71

Colony Cam Cover Mount Kit, OEM Style. Zinc – 1936–1969 Big Twin

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Colony Cam Cover Mount Kit, OEM Style. Zinc – 1936–1969 Big Twin For use with 1/4-20 threaded aftermarket cases Fitment 36-69 Big Twin (NU) Product...

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£23.18 - £23.18
£23.18
£26.71
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£26.71
£5.34 - £5.34
£5.34
£5.77
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£5.77

Colony Tappet Block Mount Kit. OEM Style, Zinc – 1957–1985 XL Sportster

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Colony Tappet Block Mount Kit. OEM Style, Zinc – 1957–1985 XL Sportster 5/16-18 threaded. OEM reproduction tappet guide hardware of the hex head bo...

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£5.34 - £5.34
£5.34
£5.77
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£5.77
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£24.62 - £24.62
£24.62
£28.37
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£28.37

Colony Tappet Block Mount Kit. OEM Style, Zinc – L53-E76 Big Twin

Out of stock

Colony Tappet Block Mount Kit. OEM Style, Zinc – L53-E76 Big Twin 1/4"-24 threaded. OEM reproduction tappet guide hardware of the hex head bolts co...

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£24.62 - £24.62
£24.62
£28.37
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£28.37
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£17.79 - £17.79
£17.79
£20.50
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£20.50

Colony Tappet Block Mount Kit. OEM Style, Zinc – 36-E53 Big Twin; 1937–1973 45" Flathead

Out of stock

Colony Tappet Block Mount Kit. OEM Style, Zinc – 36-E53 Big Twin; 1937–1973 45" Flathead 1/4"-24 threaded. OEM reproduction tappet guide hardware o...

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£17.79 - £17.79
£17.79
£20.50
£20.50 - £20.50
£20.50
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£24.73 - £24.73
£24.73
£28.50
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£28.50

Colony Sportster Rocker Box Bolt Kit. Hex, Zinc – 1977–1985 XL Sportster

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Colony Sportster Rocker Box Bolt Kit. Hex, Zinc – 1977–1985 XL Sportster OEM style replacement with hex head bolts. Complete rocker box mounting ki...

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£24.73 - £24.73
£24.73
£28.50
£28.50 - £28.50
£28.50

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