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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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£32.27
£32.27 - £32.27
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£31.89
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£31.89

Colony Motor Mount Kit – 1970–1984 Shovel NU)

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Colony Motor Mount Kit – 1970–1984 Shovel NU) Zinc Fitment 70-84 Shovel NU) Product Details Brand: Colony Category: MOTOR PARTS > MOTOR MOUNT...

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£32.27
£32.27 - £32.27
£32.27
£31.89
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£31.89
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£13.72 - £13.72
£13.72
£15.81
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£15.81

Colony Motor Mount Spacers – 1937–1973 45" SV

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Colony Motor Mount Spacers – 1937–1973 45" SV Zinc; spaces out 2 longest headbolts Fitment 37-73 45" SV (NU) Product Details Brand: Colony Categ...

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£13.72 - £13.72
£13.72
£15.81
£15.81 - £15.81
£15.81
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£47.22
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£47.22
£42.91
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£42.91

Colony Motor Mount Kit – 1937–1948 SV Big Twin

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Colony Motor Mount Kit – 1937–1948 SV Big Twin Zinc Fitment 37-48 SV Big Twin (NU) Product Details Brand: Colony Category: MOTOR PARTS > MOTO...

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£47.22
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£47.22
£42.91
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£42.91
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£62.34
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£62.34
£57.06
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£57.06

Colony Motor Mount Kit – 1936–1969 OHV Big Twin

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Colony Motor Mount Kit – 1936–1969 OHV Big Twin Zinc Fitment 36-69 OHV Big Twin (NU) Product Details Brand: Colony Category: MOTOR PARTS > MO...

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£62.34
£62.34 - £62.34
£62.34
£57.06
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£57.06
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£18.75 - £18.75
£18.75
£21.60
£21.60 - £21.60
£21.60

Colony Oversized Panhead Rocker Cover Screw Set – 1948–1965 Panhead

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Colony Oversized Panhead Rocker Cover Screw Set – 1948–1965 Panhead Zinc plated. Short bolts; for use with steel D-rings. These are OEM style screw...

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£18.75 - £18.75
£18.75
£21.60
£21.60 - £21.60
£21.60
£7.82 - £7.82
£7.82
£8.46
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£8.46

Colony Head Bolt Washer Set – 1929–1973 45" SV

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Colony Head Bolt Washer Set – 1929–1973 45" SV Zinc; Fits models with cast iron cylinder heads Fitment 29-73 45" SV (NU) Product Details Brand: C...

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£7.82 - £7.82
£7.82
£8.46
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£8.46
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£35.88
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£35.88
£35.45
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£35.45

Colony Head Bolt Washer Set. Zinc – 1940–1948 74"/80" Flathead; 1940–1957…

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Colony Head Bolt Washer Set. Zinc – 1940–1948 74"/80" Flathead; 1940–1957… Fits Side Valves with aluminum heads. OEM replacement reference 16822-39...

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£35.88
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£35.88
£35.45
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£35.45
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£7.28 - £7.28
£7.28
£7.87
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£7.87

Colony Head Bolt Washer Set – 1936–1984 OHV Big Twin

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Colony Head Bolt Washer Set – 1936–1984 OHV Big Twin Zinc; for 7/16 bolts Fitment 36-84 OHV Big Twin (NU) Product Details Brand: Colony Category...

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£7.28 - £7.28
£7.28
£7.87
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£7.87
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£43.39
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£43.39
£42.85
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£42.85

Colony Head Bolt Kit – 1973–1985 XL Sportster

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Colony Head Bolt Kit – 1973–1985 XL Sportster Zinc; OEM style; incl. washers Fitment 73-85 XL Sportster (NU) Product Details Brand: Colony Categ...

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£43.39
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£43.39
£42.85
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£42.85
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£49.62
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£49.62
£45.10
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£45.10

Colony Head Bolt Kit – 1957–1972 XL Sportster

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Colony Head Bolt Kit – 1957–1972 XL Sportster Zinc; OEM style; incl. washers Fitment 57-72 XL Sportster (NU) Product Details Brand: Colony Categ...

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£49.62
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£49.62
£45.10
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£45.10
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£91.46
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£91.46
£82.51
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£82.51

Colony Head Bolt Kit – 1954–1956 KH Models

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Colony Head Bolt Kit – 1954–1956 KH Models Zinc Fitment 54-56 KH models (NU) Product Details Brand: Colony Category: MOTOR PARTS > HEAD BOLTS...

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£91.46
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£91.46
£82.51
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£82.51
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£91.46
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£91.46
£82.51
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£82.51

Colony Head Bolt Kit – 1952–1953 K MODEL

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Colony Head Bolt Kit – 1952–1953 K MODEL Zinc; OEM style Fitment 52-53 K MODEL (NU) Product Details Brand: Colony Category: MOTOR PARTS > HEA...

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£91.46
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£91.46
£82.51
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£82.51
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£41.74
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£41.74
£41.23
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£41.23

Colony Head Bolt Kit – 1948–1984 PAN; SHOVEL

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Colony Head Bolt Kit – 1948–1984 PAN; SHOVEL Zinc; OEM hex style; incl. washers Fitment 48-84 PAN; SHOVEL (NU) Product Details Brand: Colony Cat...

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£41.74
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£41.74
£41.23
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£41.23
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£68.54
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£68.54
£62.75
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£62.75

Colony Head Bolt Kit – 1936–1939 Knucklehead

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Colony Head Bolt Kit – 1936–1939 Knucklehead Zinc; OEM style; incl. washers Fitment 36-39 Knucklehead (NU) Product Details Brand: Colony Categor...

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£68.54
£68.54 - £68.54
£68.54
£62.75
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£62.75
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£9.06 - £9.06
£9.06
£9.81
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£9.81

Colony Head Bolt – 1965–1973 45" Servi-car with Alternator

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Colony Head Bolt – 1965–1973 45" Servi-car with Alternator Zinc plated. OEM style reproduction. Repl. 16813-65. Fitment 65-73 45" Servi-car with al...

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£9.06 - £9.06
£9.06
£9.81
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£9.81
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£93.41
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£93.41
£84.27
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£84.27

Colony Head Bolt Kit – 1951–1973 45" SV

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Colony Head Bolt Kit – 1951–1973 45" SV Zinc; OEM style; cats iron heads Fitment 51-73 45" SV (NU) (Excl. ALTERNATOR models) Product Details Bran...

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£93.41
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£93.41
£84.27
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£84.27
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£103.85
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£103.85
£93.69
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£93.69

Colony Head Bolt Kit – 1937–1948 74"/80" SV Big Twin; 1929–1950…

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Colony Head Bolt Kit – 1937–1948 74"/80" SV Big Twin; 1929–1950… Zinc plated. OEM style reproduction. For models with cast iron heads. Fitment 37-4...

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£103.85
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£103.85
£93.69
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£93.69
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£105.35
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£105.35
£95.04
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£95.04

Colony Head Bolt Kit – 1937–1948 74/80" SV Big Twin

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Colony Head Bolt Kit – 1937–1948 74/80" SV Big Twin Zinc; OEM style; aluminum heads Fitment 37-48 74/80" SV Big Twin (NU) Product Details Brand: ...

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£105.35
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£105.35
£95.04
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£95.04
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£94.88
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£94.88
£85.60
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£85.60

Colony Head Bolt Kit – 1939–1973 45" SV WITH ALU HEADS

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Colony Head Bolt Kit – 1939–1973 45" SV WITH ALU HEADS Zinc; OEM style Fitment 39-73 45" SV WITH ALU HEADS (NU) Product Details Brand: Colony Ca...

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£94.88
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£94.88
£85.60
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£85.60
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£31.20
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£31.20
£30.82
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£30.82

Colony Head Bolt Washer Set. Zinc – 1984–1990 Big Twin; 1986 XL Sportster

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Colony Head Bolt Washer Set. Zinc – 1984–1990 Big Twin; 1986 XL Sportster Zinc Fitment 84-90 Big Twin; 1986 XL Sportster (NU) Product Details Bra...

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£31.20
£31.20 - £31.20
£31.20
£30.82
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£30.82
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£12.42 - £12.42
£12.42
£13.45
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£13.45

Colony Rocker Cover Washer Set. Zinc – L1954–1965 Panhead

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Colony Rocker Cover Washer Set. Zinc – L1954–1965 Panhead Zinc plated. Washers as used below the Panhead rocker cover screws. Use as required with ...

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£12.42 - £12.42
£12.42
£13.45
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£13.45
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£40.78
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£40.78
£40.29
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£40.29

Colony Panhead Rocker Cover Screw Kit. Zinc Hex. Long – 1948–1965 Panhead

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Colony Panhead Rocker Cover Screw Kit. Zinc Hex. Long – 1948–1965 Panhead Zinc plated. OEM style reproduction hex bolt with flange. Used to mount r...

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£40.78
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£40.78
£40.29
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£40.29
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£37.84
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£37.84
£37.38
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£37.38

Colony Rocker Shaft Plug & Nut Kit. Slotted. Zinc – L1971–1984 Shovelhead; L1971–1985 XL…

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Colony Rocker Shaft Plug & Nut Kit. Slotted. Zinc – L1971–1984 Shovelhead; L1971–1985 XL… Zinc plated. Specialty set. Features right side nut w...

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£37.84
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£37.84
£37.38
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£37.38
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£20.33
£23.43
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£23.43

Colony Oil Tank Mount Kit. Zinc – 1958–1964 Big Twin

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Colony Oil Tank Mount Kit. Zinc – 1958–1964 Big Twin Zinc plated. Reproduction of the original hardware used to mount the oil tank bracket to the s...

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£20.33 - £20.33
£20.33
£23.43
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£23.43

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