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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're more than happy to have customers order which ever way they prefer. If you'd like to discuss anything over the phone prior to ordering we'd be delighted to help you.

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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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We offer a price match promise on all items we sell. Use the "Seen it cheaper?" option found on the product pages to request a price match.

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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 116 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 22 May and 28 May.

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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 22 May and 28 May.

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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 22 May and 28 May.

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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 22 May and 28 May.

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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 22 May and 28 May.

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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 22 May and 28 May.

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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) £53.46 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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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 22 May and 28 May.

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Colony Cylinder Base Nut Kit Hex in Parkerized Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM421989)
Colony Cylinder Base Nut Kit Hex in Parkerized Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM421989) £16.50 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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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 22 May and 28 May.

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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 22 May and 28 May.

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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 22 May and 28 May.

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Colony Cylinder Base Spacers in Chrome Finish For 1979-1984 1340CC B.T. Models (ARM014315)
Colony Cylinder Base Spacers in Chrome Finish For 1979-1984 1340CC B.T. Models (ARM014315) £29.24 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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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 22 May and 28 May.

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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 22 May and 28 May.

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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) £155.82 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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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 11 Jun and 17 Jun.

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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 22 May and 28 May.

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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 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 22 May and 28 May.

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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) £64.99 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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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 22 May and 28 May.

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Colony Cylinder Base Nut Kit Cap Style in Chrome Finish For 1930-1978 B.T. Models (ARM011989)
Colony Cylinder Base Nut Kit Cap Style in Chrome Finish For 1930-1978 B.T. Models (ARM011989) £25.38 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Base Nut Kit 'High Torque' No Washers, Provides Extra Space For Big Bore Cylinders But Fits Stock Bore Cylinders Equally Well in Black Oxide Finish For 1936-1984 B.T. Models (ARM675079)
Colony Cylinder Base Nut Kit 'High Torque' No Washers, Provides Extra Space For Big Bore Cylinders But Fits Stock Bore Cylinders Equally Well in Black Oxide Finish For 1936-1984 B.T. Models (ARM675079) £32.35 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Stud Set For 1986-2022 XL, 2008-2012 XR1200, S&S 100/107/113 Inch 4 Inch Bore Evo Engines Models (ARM921989)
Colony Cylinder Stud Set For 1986-2022 XL, 2008-2012 XR1200, S&S 100/107/113 Inch 4 Inch Bore Evo Engines Models (ARM921989) £92.87 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Jims Left Main Seal Remover (5830)
Jims Left Main Seal Remover (5830) £292.12 inc.VAT
  out of stock
Jims Forceflow Cylinder Head Cooler In Chrome For 2017-Up M8 Touring Models (5469)
Jims Forceflow Cylinder Head Cooler In Chrome For 2017-Up M8 Touring Models (5469) £682.51 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Jims Forceflow Cylinder Head Cooler In Black For 2017-Up M8 Touring Models (5468)
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 22 May and 28 May.

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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 22 May and 28 May.

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S&S Head Bolt Kit 12 Point Including Washers in Zinc Finish For 1948-1984 B.T. Models (93-3024)
S&S Head Bolt Kit 12 Point Including Washers in Zinc Finish For 1948-1984 B.T. Models (93-3024) £113.83 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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S&S Head Bolt Kit 116 Engine For 1991-2017 B.T. (Excluding 2017 M8) With OEM Heads Models (93-3071)
S&S Head Bolt Kit 116 Engine For 1991-2017 B.T. (Excluding 2017 M8) With OEM Heads Models (93-3071) £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 22 May and 28 May.

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S&S Head Bolt Kit 113, 116, 124 Engines For All Evo B.T. With S&S Heads, 1985-1990 Evo B.T. With OEM Heads, 1991-2003 XL 89 Inch 4 5/16 Stroke With OEM Heads Models (93-3013)
S&S Head Bolt Kit 113, 116, 124 Engines For All Evo B.T. With S&S Heads, 1985-1990 Evo B.T. With OEM Heads, 1991-2003 XL 89 Inch 4 5/16 Stroke With OEM Heads Models (93-3013) £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 22 May and 28 May.

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S&S Head Bolt Kit 100, 107, 78 Retro, 103 Evo Engines, 116/124 TC With OEM Heads For 1991-2017 B.T. (Excluding 2017 M8), 1991-2003 XL With 5 Inch Stroke. For OEM Heads Models (93-3016)
S&S Head Bolt Kit 100, 107, 78 Retro, 103 Evo Engines, 116/124 TC With OEM Heads For 1991-2017 B.T. (Excluding 2017 M8), 1991-2003 XL With 5 Inch Stroke. For OEM Heads Models (93-3016) £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 22 May and 28 May.

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S&S Cylinder Base Stud Set 2.030 Inch OAL For 1930-1984 61/74/80 Inch OHV And SV B.T. Models (31-2328)
S&S Cylinder Base Stud Set 2.030 Inch OAL For 1930-1984 61/74/80 Inch OHV And SV B.T. Models (31-2328) £53.46 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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S&S Cylinder Base Nuts 'High Torque' (8 Pack) No Washers, Provides Extra Space For Big Bore Cylinders But Fits Stock Bore Equally Well in Stainless Steel Finish For 1930-1984 B.T. Models (93-3063)
S&S Cylinder Base Nuts 'High Torque' (8 Pack) No Washers, Provides Extra Space For Big Bore Cylinders But Fits Stock Bore Equally Well in Stainless Steel Finish For 1930-1984 B.T. Models (93-3063) £101.83 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Base Lockwashers 7/16 in Chrome Finish For 1930-1978 OHV & SV B.T., 1957-1986 XL Models (ARM521989)
Colony Cylinder Base Lockwashers 7/16 in Parkerized Finish For 1930-1978 OHV & SV B.T., 1957-1986 XL Models (ARM721989)
Colony Cylinder Base Lockwashers 7/16 in Parkerized Finish For 1930-1978 OHV & SV B.T., 1957-1986 XL Models (ARM721989) £5.93 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Base Lockwashers 7/16 in Zinc Finish For 1930-1978 OHV & SV B.T., 1957-1986 XL Models (ARM396929)
Colony Cylinder Base Nut Kit Acorn in Chrome Finish For 1930-1978 B.T. Models (ARM901989)
Colony Cylinder Base Nut Kit Acorn in Chrome Finish For 1930-1978 B.T. Models (ARM901989) £25.38 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Base Nut Kit Acorn Milled Hex Without Washers in Chrome Finish For 1978-1984 B.T. Models (ARM541315)
Colony Cylinder Base Nut Kit Acorn Milled Hex Without Washers in Chrome Finish For 1978-1984 B.T. Models (ARM541315) £29.44 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Base Nut Kit Cap Style in Chrome Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM121989)
Colony Cylinder Base Nut Kit Cap Style in Chrome Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM121989) £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 22 May and 28 May.

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Colony Cylinder Base Nut Kit Hex Acorn Cap in Chrome Finish For 1979-1984 1340CC B.T. Models (ARM211989)
Colony Cylinder Base Nut Kit Hex Acorn Cap in Chrome Finish For 1979-1984 1340CC B.T. Models (ARM211989) £29.44 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Base Nut Kit Hex Flanged in Black Parkerized Finish For 1979-1984 1340CC B.T. Models (ARM511989)
Colony Cylinder Base Nut Kit Hex Flanged in Black Parkerized Finish For 1979-1984 1340CC B.T. Models (ARM511989) £20.02 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder base Nut Kit Hex Flanged in Zinc Finish For 1979-1984 1340CC B.T. Models (ARM196929)
Colony Cylinder base Nut Kit Hex Flanged in Zinc Finish For 1979-1984 1340CC B.T. Models (ARM196929) £20.02 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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Colony Cylinder Base Nut Kit Hex in Chrome Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM221989)
Colony Cylinder Base Nut Kit Hex in Chrome Finish For 1957-1985 XL, 1929-1973 45 Inch SV Models (ARM221989) £24.01 inc.VAT
  EU stock

Usually ships in 2-5 business days

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

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