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200,000+ Parts & Accessories
Our catalogue has grown extensively over the years and we now source a huge range of parts and accessories from a number of distributors from round the world.

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We know when customers receive their orders there is always the possibility of needing to exchange or return items for a refund. Rest assured if you need to, we make it simple. See T&C's for more details.

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ARH Custom Custom Motorcycle Parts and Accessories ARH Custom Custom Motorcycle Parts and Accessories
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Cylinder Parts

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Showing 1 to 50 of 114 products in this section.
Streethog Cylinder Head/Base Nut 7/16-20; high Torque Style, Provides Extra Clearance For Big Bore Cylinders Fits Stock Bore As Well in Stainless Steel For 1936-1984 B.T. Models (ARM773009)
Streethog Cylinder Head/Base Nut 7/16-20; high Torque Style, Provides Extra Clearance For Big Bore Cylinders Fits Stock Bore As Well in Stainless Steel For 1936-1984 B.T. Models (ARM773009) £10.32 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit, High-Torque No Washers, Provides Extra Space For Big Bore Cylinders But Fits Stock Bore Equally Well in Chrome Finish For 1936-1984 B.T. Models (ARM087105)
Colony Cylinder Base Nut Kit, High-Torque No Washers, Provides Extra Space For Big Bore Cylinders But Fits Stock Bore Equally Well in Chrome Finish For 1936-1984 B.T. Models (ARM087105) £36.84 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit Acorn in Chrome Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM811989)
Colony Cylinder Base Nut Kit Acorn in Chrome Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM811989) £23.00 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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S&S Cylinder Stud Set For Late 1985-1999 Evo B.T. & S&S Evo Crankcases Models (31-2321)
S&S Cylinder Stud Set For Late 1985-1999 Evo B.T. & S&S Evo Crankcases Models (31-2321) £59.54 inc.VAT
  UK stock

In stock

All orders are shipped out of our UK premises. Estimated shipping date 4 Nov.

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Colony Cylinder Head Bolt Kit 12 Point Domed Heads in Chrome Finish For Late 1985-1991 B.T., 1986-1991 XL Models (ARM995989)
Colony Cylinder Head Bolt Kit 12 Point Domed Heads in Chrome Finish For Late 1985-1991 B.T., 1986-1991 XL Models (ARM995989) £123.29 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit Hex In Chrome Finish For 1930-1978 B.T. Models (ARM982315)
Colony Cylinder Base Nut Kit Hex In Chrome Finish For 1930-1978 B.T. Models (ARM982315) £27.64 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Head Bolt Kit OEM Style Including Washers in Zinc Finish For 1973-1985 XL Models (ARM918929)
Colony Head Bolt Kit OEM Style Including Washers in Zinc Finish For 1973-1985 XL Models (ARM918929) £41.82 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Head Bolt Kit 12 Point Domed Head in Chrome Finish For 1992-2017 B.T. (Excluding M8), 1992-2022 XL, 2008-2012 XR1200 Models (ARM006989)
Colony Cylinder Head Bolt Kit 12 Point Domed Head in Chrome Finish For 1992-2017 B.T. (Excluding M8), 1992-2022 XL, 2008-2012 XR1200 Models (ARM006989) £123.29 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit Hex in Parkerized Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM421989)
Jims Forceflow Cylinder Head Cooler In Black For 2017-Up M8 Touring Models (5468)
Jims Forceflow Cylinder Head Cooler In Black For 2017-Up M8 Touring Models (5468) £633.02 inc.VAT
  US stock

Usually ships in 3-4 weeks

All orders are shipped out of our UK premises. Estimated shipping date between 22 Nov and 28 Nov.

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Gardner Westcott Head Bolt Kit 12 Point Stock & Big Bore in Chrome Finish For 1948-1984 B.T. Models (ARM786415)
Gardner Westcott Head Bolt Kit 12 Point Stock & Big Bore in Chrome Finish For 1948-1984 B.T. Models (ARM786415) £89.77 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Gardner Westcott Cylinder Base Nut Kit, Hex in Zinc Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM663305)
Gardner Westcott Cylinder Base Nut Kit, Hex in Zinc Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM663305) £11.60 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Head Bolt Kit OEM Style Cast Iron Heads in Parkerized Finish For 1937-1948 74/80 Inch SV B.T., 1929-1950 45 Inch SV Models (ARM916989)
Colony Head Bolt Kit OEM Style Cast Iron Heads in Parkerized Finish For 1937-1948 74/80 Inch SV B.T., 1929-1950 45 Inch SV Models (ARM916989) £99.38 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Spacers in Chrome Finish For 1979-1984 1340CC B.T. Models (ARM014315)
Colony Cylinder Base Stud Set 8-Pack For 1930-1977 B.T. Models (ARM002929)
Colony Cylinder Base Stud Set 8-Pack For 1930-1977 B.T. Models (ARM002929) £40.00 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit Hex in Parkerized Finish For 1930-1978 B.T. Models (ARM801989)
Colony Cylinder Base Nut Kit Hex in Parkerized Finish For 1930-1978 B.T. Models (ARM801989) £18.70 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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S&S Head Bolt Kit in Black Oxide Coating Finish For 2018-2023 Softail & 2017-2023 Touring, Trikes Models (900-1006)
S&S Head Bolt Kit in Black Oxide Coating Finish For 2018-2023 Softail & 2017-2023 Touring, Trikes Models (900-1006) £171.00 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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S&S Cycle Super Stock Heads 3.625 Bore O-Ring Style Dual Plug Cylinder Head Kit In Natural Aluminium Finish For Harley Davidson 1966-1978 Big Twin Models (90-1491)
S&S Cycle Super Stock Heads 3.625 Bore O-Ring Style Dual Plug Cylinder Head Kit In Natural Aluminium Finish For Harley Davidson 1966-1978 Big Twin Models (90-1491) £2,150.06 inc.VAT
  US stock

Usually ships in 3-4 weeks

All orders are shipped out of our UK premises. Estimated shipping date between 22 Nov and 28 Nov.

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Colony Cylinder Head Bolt Kit 12 Point Domed Head, External Thread in Chrome Finish For Early 1984 - Late 1985 B.T. Models (ARM895989)
Colony Cylinder Head Bolt Kit 12 Point Domed Head, External Thread in Chrome Finish For Early 1984 - Late 1985 B.T. Models (ARM895989) £33.98 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Studs 8x 3/8-16 To 3/8-24 x 1 13/16 Inch Stud For 1930-1973 45 Inch SV (Cylinder Base); 1965-1969 B.T. Models (ARM121179)
Colony Cylinder Base Studs 8x 3/8-16 To 3/8-24 x 1 13/16 Inch Stud For 1930-1973 45 Inch SV (Cylinder Base); 1965-1969 B.T. Models (ARM121179) £15.71 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit Hex Flanged in Chrome Finish For 1979-1984 1340CC B.T. Models (ARM311989)
Colony Cylinder Base Nut Kit Hex Flanged in Chrome Finish For 1979-1984 1340CC B.T. Models (ARM311989) £24.97 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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S&S Cylinder Stud Set For 1999-2017 TCA/B Models (31-2340)
S&S Cylinder Stud Set For 1999-2017 TCA/B Models (31-2340) £99.84 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit High-Torque in Black Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM021989)
Colony Cylinder Base Nut Kit High-Torque in Black Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM021989) £32.09 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Cylinder Base Nut Kit Cap Style in Chrome Finish For 1930-1978 B.T. Models (ARM011989)
Gardner Westcott Head Bolt Kit, 12 Point No Washers For 1984- Early 1985 Evo B.T. Models (ARM018105)
Colony Head Bolt Washer Set For 7/16 Bolts in Parkerized Finish For 1936-1984 OHV B.T. Models (ARM736989)
Colony Head Bolt Washer Set For 7/16 Bolts in Parkerized Finish For 1936-1984 OHV B.T. Models (ARM736989) £8.36 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Colony Head Bolt Washer Set in Chrome Finish For H-D SideValves With Cast Iron Heads Models (ARM146989)
Colony Head Bolt Washer Set in Chrome Finish For H-D SideValves With Cast Iron Heads Models (ARM146989) £13.50 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Gardner Westcott Cylinder Base Nut Kit, Hex in Chrome Finish For 1936-1984 B.T. Models (ARM572315)
Gardner Westcott Cylinder Base Nut Kit, Hex in Chrome Finish For 1936-1984 B.T. Models (ARM572315) £31.15 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Gardner Westcott Washer, Head Bolt 8 Used, 3/8 ID, 1 Inch OD, 5/16 Inch High in Chrome Finish For 1984 - Early 1985 Evo B.T. Models (ARM284619)
Gardner Westcott Washer, Head Bolt 8 Used, 3/8 ID, 1 Inch OD, 5/16 Inch High in Chrome Finish For 1984 - Early 1985 Evo B.T. Models (ARM284619) £13.50 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Gardner Westcott Head Bolt Kit, 12 Point No Washers Used in Chrome Finish For 1992-2017 B.T. (Excluding M8), 1992-2022 XL, 2008-2012 XR1200 Models (ARM817705)
Gardner Westcott Head Bolt Kit, 12 Point No Washers Used in Chrome Finish For 1992-2017 B.T. (Excluding M8), 1992-2022 XL, 2008-2012 XR1200 Models (ARM817705) £127.70 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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Jims Forceflow Cylinder Head Cooler In Chrome For 2017-Up M8 Touring Models (5469)
Jims Cylinder Torque Plate Kit For 2017-Up M8 107 Inch & 114 Inch Touring Models (5829)
Jims Cylinder Torque Plate Kit For 2017-Up M8 107 Inch & 114 Inch Touring Models (5829) £728.62 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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S&S head Bolt Kit 98, 103 Engines For All Evo B.T. With S&S Heads, 1985-1990 Evo B.T. With OEM Heads Models (93-3015)
S&S head Bolt Kit 98, 103 Engines For All Evo B.T. With S&S Heads, 1985-1990 Evo B.T. With OEM Heads Models (93-3015) £145.61 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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S&S Head Bolt Kit 88/95/100/106/107/111/117/124 Engines For 1991-2017 B.T. (Excluding 2017 M8) With OEM Heads Models (93-3070)
S&S Head Bolt Kit 88/95/100/106/107/111/117/124 Engines For 1991-2017 B.T. (Excluding 2017 M8) With OEM Heads Models (93-3070) £145.61 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 5 Nov and 8 Nov.

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