Cylinders/heads Mount Kits

70 products

Our range of Cylinders/Heads Mount Kits for Harley-Davidson provides the essential hardware needed to properly secure your engine's top end components. Covering a vast span of Harley-Davidson history from 1929-1973 45 cubic inch Servi-Cars and 1957-1985 XL Sportsters through to 1985-2017 Big Twins and 1992-2022 Sportsters, these comprehensive kits include every stud, bolt, washer and fastener required for professional assembly. Colony Manufacturing leads our selection with complete kits that take the guesswork out of engine building, while Gardner-Westcott offers trusted alternatives. S&S and Eastern provide additional options for specific applications. Whether you are mounting cylinders on a vintage Panhead or installing high-performance heads on your modern Softail, proper mounting hardware ensures reliable sealing and long-term durability. Browse the full range below.

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Showing 1–48 of 70 MOTOR PARTS

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8216-18

£131.16£118.04

Member£111.49-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8218-36

£131.16£118.04

Member£111.49-15%

Colony Colony cyl head bolt kit

Colony cyl head bolt kit

Colony

#2011-8

£129.80£116.82

Member£110.33-15%

Colony Colony cyl head bolt kit

Colony cyl head bolt kit

Colony

#2012-8

£129.80£116.82

Member£110.33-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9888-16

£116.42£104.78

Member£98.96-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9640-16

£113.82£102.44

Member£96.75-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9642-16

£113.82£102.44

Member£96.75-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9727-18

£104.58£94.12

Member£88.89-15%

Colony Colony, cylinder stud set (8-pack)

Colony, cylinder stud set (8-pack)

Colony

#9424-8

Member£81.89-15%

Colony Colony cylinder stud set (8-pack)

Colony cylinder stud set (8-pack)

Colony

#9507-8

Member£81.89-15%

Colony Colony cylinder stud set (8-pack)

Colony cylinder stud set (8-pack)

Colony

#2083-8

Member£81.89-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9705-18-45

Member£80.06-15%

Gardner-Westcott Head bolt/cyl.base washer, chrome - 25 pack

Head bolt/cyl.base washer, chrome - 25 pack

Gardner-Westcott

#23580-25 PACK

Member£76.19-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8221-20

Member£69.33-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8219-20

Member£69.33-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8220-20

Member£69.33-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9725-20

Member£57.83-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9726-20

Member£57.83-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8944-16

Member£56.53-15%

Colony Colony, 45" cylinder head stud kit

Colony, 45" cylinder head stud kit

Colony

#2183-16

Member£55.02-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#2686-18

Member£52.62-15%

Colony Colony, 12-point ''big bore'' head bolt kit. Chrome

Colony, 12-point ''big bore'' head bolt kit. Chrome

Colony

#8714-20

Member£51.50-15%

Colony Colony, head bolt cover kit. Pike, chrome

Colony, head bolt cover kit. Pike, chrome

Colony

#2262-4

Member£48.90-15%

S&S S&S, cylinder base stud set

S&S, cylinder base stud set

S&S

#31-2328

Member£47.84-15%

Colony Colony, head bolt cover kit. Custom hex domed, chrome

Colony, head bolt cover kit. Custom hex domed, chrome

Colony

#2024-4

Member£47.39-15%

Colony Colony, head bolt cover kit. Smooth domed, chrome

Colony, head bolt cover kit. Smooth domed, chrome

Colony

#2232-4

Member£47.39-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9211-16

Member£45.66-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#8918-19

Member£45.35-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#2471-20

Member£42.95-15%

Colony Colony, 12-point ''big bore'' head bolt kit. Black

Colony, 12-point ''big bore'' head bolt kit. Black

Colony

#8618-20

Member£42.33-15%

Gardner-Westcott Cyl. base allen screws

Cyl. base allen screws

Gardner-Westcott

#C-74-08

Member£41.48-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#2534-19

Member£39.87-15%

Colony Colony primary cover mount kit. Acorn

Colony primary cover mount kit. Acorn

Colony

#8914-17

Member£39.82-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#9958-19

Member£39.82-15%

Colony Colony primary cover mount kit. Cap style

Colony primary cover mount kit. Cap style

Colony

#8915-17

Member£39.82-15%

Colony Colony primary cover mount kit. Acorn

Colony primary cover mount kit. Acorn

Colony

#8481-20

Member£39.39-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#7350-15

Member£39.39-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#8464-15

Member£39.39-15%

Colony Colony primary cover mount kit. Cap style

Colony primary cover mount kit. Cap style

Colony

#8482-20

Member£39.39-15%

Colony Colony 45" cyl head nut kit

Colony 45" cyl head nut kit

Colony

#7709-32-Z

Member£36.86-15%

Colony Colony cylinder base stud set

Colony cylinder base stud set

Colony

#8856-8

Member£32.20-15%

Colony Colony, head bolt washer set. Chrome

Colony, head bolt washer set. Chrome

Colony

#2017-8

Member£31.62-15%

Colony Colony head bolt washer set. Black

Colony head bolt washer set. Black

Colony

#9698-18

Member£30.28-15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#7146-12

Member£29.27-15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#7624-8

Member£25.86-15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#8474-8

Member£23.71-15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#9100-8

Member£22.97-15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#8104-16

Member£19.07-15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8216-18

£131.16 £118.04

Member £111.49 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8218-36

£131.16 £118.04

Member £111.49 -15%

Colony Colony cyl head bolt kit

Colony cyl head bolt kit

Colony

#2011-8

£129.80 £116.82

Member £110.33 -15%

Colony Colony cyl head bolt kit

Colony cyl head bolt kit

Colony

#2012-8

£129.80 £116.82

Member £110.33 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9888-16

£116.42 £104.78

Member £98.96 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9640-16

£113.82 £102.44

Member £96.75 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9642-16

£113.82 £102.44

Member £96.75 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9727-18

£104.58 £94.12

Member £88.89 -15%

Colony Colony, cylinder stud set (8-pack)

Colony, cylinder stud set (8-pack)

Colony

#9424-8

£96.34 £86.71

Member £81.89 -15%

Colony Colony cylinder stud set (8-pack)

Colony cylinder stud set (8-pack)

Colony

#9507-8

£96.34 £86.71

Member £81.89 -15%

Colony Colony cylinder stud set (8-pack)

Colony cylinder stud set (8-pack)

Colony

#2083-8

£96.34 £86.71

Member £81.89 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9705-18-45

£94.19 £84.77

Member £80.06 -15%

Gardner-Westcott Head bolt/cyl.base washer, chrome - 25 pack

Head bolt/cyl.base washer, chrome - 25 pack

Gardner-Westcott

#23580-25 PACK

£89.63 £80.67

Member £76.19 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8221-20

£81.56 £73.40

Member £69.33 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8219-20

£81.56 £73.40

Member £69.33 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8220-20

£81.56 £73.40

Member £69.33 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9725-20

£68.04 £61.24

Member £57.83 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9726-20

£68.04 £61.24

Member £57.83 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#8944-16

£66.50 £59.85

Member £56.53 -15%

Colony Colony, 45" cylinder head stud kit

Colony, 45" cylinder head stud kit

Colony

#2183-16

£64.73 £58.26

Member £55.02 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#2686-18

£61.90 £55.71

Member £52.62 -15%

Colony Colony, 12-point ''big bore'' head bolt kit. Chrome

Colony, 12-point ''big bore'' head bolt kit. Chrome

Colony

#8714-20

£60.59 £54.53

Member £51.50 -15%

Colony Colony, head bolt cover kit. Pike, chrome

Colony, head bolt cover kit. Pike, chrome

Colony

#2262-4

£57.53 £51.78

Member £48.90 -15%

S&S S&S, cylinder base stud set

S&S, cylinder base stud set

S&S

#31-2328

£56.28 £50.65

Member £47.84 -15%

Colony Colony, head bolt cover kit. Custom hex domed, chrome

Colony, head bolt cover kit. Custom hex domed, chrome

Colony

#2024-4

£55.75 £50.18

Member £47.39 -15%

Colony Colony, head bolt cover kit. Smooth domed, chrome

Colony, head bolt cover kit. Smooth domed, chrome

Colony

#2232-4

£55.75 £50.18

Member £47.39 -15%

Colony Colony head bolt kit

Colony head bolt kit

Colony

#9211-16

£53.72 £48.35

Member £45.66 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#8918-19

£53.35 £48.02

Member £45.35 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#2471-20

£50.53 £45.48

Member £42.95 -15%

Colony Colony, 12-point ''big bore'' head bolt kit. Black

Colony, 12-point ''big bore'' head bolt kit. Black

Colony

#8618-20

£49.80 £44.82

Member £42.33 -15%

Gardner-Westcott Cyl. base allen screws

Cyl. base allen screws

Gardner-Westcott

#C-74-08

£48.80 £43.92

Member £41.48 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#2534-19

£46.91 £42.22

Member £39.87 -15%

Colony Colony primary cover mount kit. Acorn

Colony primary cover mount kit. Acorn

Colony

#8914-17

£46.85 £42.17

Member £39.82 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#9958-19

£46.85 £42.17

Member £39.82 -15%

Colony Colony primary cover mount kit. Cap style

Colony primary cover mount kit. Cap style

Colony

#8915-17

£46.85 £42.17

Member £39.82 -15%

Colony Colony primary cover mount kit. Acorn

Colony primary cover mount kit. Acorn

Colony

#8481-20

£46.34 £41.71

Member £39.39 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#7350-15

£46.34 £41.71

Member £39.39 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#8464-15

£46.34 £41.71

Member £39.39 -15%

Colony Colony primary cover mount kit. Cap style

Colony primary cover mount kit. Cap style

Colony

#8482-20

£46.34 £41.71

Member £39.39 -15%

Colony Colony 45" cyl head nut kit

Colony 45" cyl head nut kit

Colony

#7709-32-Z

£43.36 £39.02

Member £36.86 -15%

Colony Colony cylinder base stud set

Colony cylinder base stud set

Colony

#8856-8

£37.88 £34.09

Member £32.20 -15%

Colony Colony, head bolt washer set. Chrome

Colony, head bolt washer set. Chrome

Colony

#2017-8

£37.20 £33.48

Member £31.62 -15%

Colony Colony head bolt washer set. Black

Colony head bolt washer set. Black

Colony

#9698-18

£35.62 £32.06

Member £30.28 -15%

Colony Colony primary cover mount kit

Colony primary cover mount kit

Colony

#7146-12

£34.44 £31.00

Member £29.27 -15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#7624-8

£30.42 £27.38

Member £25.86 -15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#8474-8

£27.89 £25.10

Member £23.71 -15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#9100-8

£27.02 £24.32

Member £22.97 -15%

Colony Colony cyl base nut kit

Colony cyl base nut kit

Colony

#8104-16

£22.43 £20.19

Member £19.07 -15%

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