Worldwide Shipping
We offer shipping to most countries. Simply select your country once you have added items to your basket and you'll be shown an instant price for shipping without having to advance in to the check out process.

×

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.

×

Order Online Or By Phone 
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.

×

Simple Exchange Or Refund Policy 
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.

×

Price Match Promise 
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.

×
ARH Custom Custom Motorcycle Parts and Accessories ARH Custom Custom Motorcycle Parts and Accessories
Shop by...
Your Vehicle Details
Price
Brand
Make
Availability

Piston Kits

Sort by
Showing 1 to 50 of 266 products in this section.
DOSS Replacement 9:1 Cast Piston Kit Standard Length For 1988-2003 XL1200 Models (ARM955405)
DOSS Replacement 9:1 Cast Piston Kit Standard Length For 1988-2003 XL1200 Models (ARM955405) £42.58 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
TrustPilot starTrustPilot starTrustPilot starTrustPilot starTrustPilot star (1)
KB Performance 1340cc Evo BT Standard Diameter Pop-Up Piston Kit For 1984-1999 1340 Evo Big Twin Models (ARM176449)
S&S 3-7/16 Inch Forged Stroker Piston Kit +.060 Inch Size (Standard for 3 1/2 Inch Cylinder) For 1936-1984 Big Twins (106-5779)
S&S 3-7/16 Inch Forged Stroker Piston Kit +.060 Inch Size (Standard for 3 1/2 Inch Cylinder) For 1936-1984 Big Twins (106-5779) £446.54 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S Forged 3-5/8 Inch Big Bore Piston Kit +.060 Inch Size For 1936-1984 OHV Big Twin Models (106-5789)
S&S Forged 3-5/8 Inch Big Bore Piston Kit +.060 Inch Size For 1936-1984 OHV Big Twin Models (106-5789) £387.62 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S Forged 3-5/8 Inch Big Bore Piston Kit +.030 Inch Size For 1936-1984 OHV Big Twin Models (106-5538)
S&S Forged 3-5/8 Inch Big Bore Piston Kit +.030 Inch Size For 1936-1984 OHV Big Twin Models (106-5538) £401.90 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S Forged 3-5/8 Inch Big Bore Piston Kit +.020 Inch Size For 1936-1984 OHV Big Twin Models (106-5537)
S&S Forged 3-5/8 Inch Big Bore Piston Kit +.020 Inch Size For 1936-1984 OHV Big Twin Models (106-5537) £387.62 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3-5/8 Inch Replacement Evo Superstock Piston Kit +.020 Inch Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads And 4-1/4 , 4-1/2 And 4-5/8 Inch Stroke Flywheels (92-1062)
S&S 3-5/8 Inch Replacement Evo Superstock Piston Kit +.020 Inch Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads And 4-1/4 , 4-1/2 And 4-5/8 Inch Stroke Flywheels (92-1062) £475.06 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance +.030 Inch Diameter 9.0:1 CR Piston Kit For 1986-2020 XL883 Models (ARM837449)
KB Performance +.030 Inch Diameter 9.0:1 CR Piston Kit For 1986-2020 XL883 Models (ARM837449) £206.08 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Standard Diameter 9.0:1 CR Piston Kit For 1986-2020 XL883 Models (ARM537449)
KB Performance Standard Diameter 9.0:1 CR Piston Kit For 1986-2020 XL883 Models (ARM537449) £206.08 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3-1/2 Inch Replacement Cast Piston Kit Standard Size For 1984-1999 Evo Big Twin Models (920-0015)
S&S 3-1/2 Inch Replacement Cast Piston Kit Standard Size For 1984-1999 Evo Big Twin Models (920-0015) £165.52 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3-5/8 Inch Replacement Evo Superstock Piston Kit Standard Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads And 4-1/4 , 4-1/2 And 4-5/8 Inch Stroke Flywheels (92-1060)
S&S 3-5/8 Inch Replacement Evo Superstock Piston Kit Standard Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads And 4-1/4 , 4-1/2 And 4-5/8 Inch Stroke Flywheels (92-1060) £475.06 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock 9.0:1 CR Standard Diameter Replacement Piston Kit For 1988-2020 XL1200 Models (ARM916449)
KB Performance Stock 9.0:1 CR Standard Diameter Replacement Piston Kit For 1988-2020 XL1200 Models (ARM916449) £213.76 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Standard Diameter Piston Kit For 2008-2012 XR1200, 2008-2010 Buell 1200XB Models (ARM267449)
KB Performance Standard Diameter Piston Kit For 2008-2012 XR1200, 2008-2010 Buell 1200XB Models (ARM267449) £213.76 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
TrustPilot starTrustPilot starTrustPilot starTrustPilot starTrustPilot star (1)
DOSS 80 Inch Replacement Flathead +.070 Inch Piston Kit For 1937-1941 80 Inch (1300cc) 3-7/16 Inch Bore Flatheads Models (ARM784649)
DOSS 80 Inch Replacement Flathead +.070 Inch Piston Kit For 1937-1941 80 Inch (1300cc) 3-7/16 Inch Bore Flatheads Models (ARM784649) £230.87 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 88 Inch / 1436CC 3-5/8 Inch Big Bore Cylinder & Piston Kit in Natural Aluminium Finish For 1984-1999 Evo Big Twin Models (91-7002)
S&S 88 Inch / 1436CC 3-5/8 Inch Big Bore Cylinder & Piston Kit in Natural Aluminium Finish For 1984-1999 Evo Big Twin Models (91-7002) £1,194.36 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 88 Inch To 95 Inch Big Bore Pop-Up Piston Kit +.010 Inch Size For 1999-2006 88 Inch Twin Cam (92-1201)
S&S 88 Inch To 95 Inch Big Bore Pop-Up Piston Kit +.010 Inch Size For 1999-2006 88 Inch Twin Cam (92-1201) £504.53 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3-1/2 Inch Bore 9:1 CR Piston Kit +.030 Inch Size For 1979-1984 1340CC/80 Inch Shovel Models (106-5522)
S&S 3-1/2 Inch Bore 9:1 CR Piston Kit +.030 Inch Size For 1979-1984 1340CC/80 Inch Shovel Models (106-5522) £398.09 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S Replacement Evo Superstock Piston Kit +.020 Inch Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads Only Models (92-2028)
S&S Replacement Evo Superstock Piston Kit +.020 Inch Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads Only Models (92-2028) £456.05 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S Replacement Evo Superstock Piston Kit +.005 Inch Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads Only Models (92-20265)
S&S Replacement Evo Superstock Piston Kit +.005 Inch Size For 1984-1999 Evo Big Twin With S&S SuperStock Heads Only Models (92-20265) £446.54 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3.927 Inch Big Bore Conversion Piston & Ring Kit Standard Size For 1999-2005 Dyna, 1999-2006 Touring, 2000-2006 Softail With 88 Inch Engine (106-3688)
S&S 3.927 Inch Big Bore Conversion Piston & Ring Kit Standard Size For 1999-2005 Dyna, 1999-2006 Touring, 2000-2006 Softail With 88 Inch Engine (106-3688) £475.06 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S +.020 Inch Size 4 Inch Bore Piston Kit For All 100 & 107 Inch And 4 Inch Bore S&S SSW Engines (92-1402)
S&S +.020 Inch Size 4 Inch Bore Piston Kit For All 100 & 107 Inch And 4 Inch Bore S&S SSW Engines (92-1402) £446.54 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 96 Inch To 103 Inch Big Bore Pop-Up Piston Kit Standard Size For 2007-2017 96 Inch Twin Cam (106-0432)
S&S 96 Inch To 103 Inch Big Bore Pop-Up Piston Kit Standard Size For 2007-2017 96 Inch Twin Cam (106-0432) £444.64 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3-1/2 Inch Bore 9:1 CR Piston Kit +.010 Inch Size For 1979-1984 1340CC/80 Inch Shovel Models (106-5520)
S&S 3-1/2 Inch Bore 9:1 CR Piston Kit +.010 Inch Size For 1979-1984 1340CC/80 Inch Shovel Models (106-5520) Now £368.24 inc.VAT
Was £387.62
(Save £19.38)

  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S Cycle High Compression Piston Kit For 2019-2021 Royal Enfield 650 Twin Models (920-0143)
S&S Cycle High Compression Piston Kit For 2019-2021 Royal Enfield 650 Twin Models (920-0143) £475.06 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S M8 124 Inch Piston Kit Standard For 2018-2023 Softail, 2017-2023 Touring Models (920-0135)
S&S M8 124 Inch Piston Kit Standard For 2018-2023 Softail, 2017-2023 Touring Models (920-0135) £598.58 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S M8 128 Inch Piston Kit .010 Inch For 2018-2023 Softail, 2017-2023 Touring Models (920-0142)
S&S M8 128 Inch Piston Kit .010 Inch For 2018-2023 Softail, 2017-2023 Touring Models (920-0142) £587.17 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S M8 128 Inch Piston Kit Standard For 2018-2023 Softail, 2017-2023 Touring Models (920-0140)
S&S M8 128 Inch Piston Kit Standard For 2018-2023 Softail, 2017-2023 Touring Models (920-0140) £598.58 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S M8 124 Inch Piston Kit .010 Inch For 2018-2023 Softail, 2017-2023 Touring Models (920-0141)
S&S M8 124 Inch Piston Kit .010 Inch For 2018-2023 Softail, 2017-2023 Touring Models (920-0141) £598.58 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Samwel Supplies +.030 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM824649)
Samwel Supplies +.030 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM824649) £227.98 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Samwel Supplies +.040 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM924649)
Samwel Supplies +.040 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM924649) £227.98 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Samwel Supplies +.050 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM034649)
Samwel Supplies +.050 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM034649) £230.87 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Samwel Supplies +.060 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM134649)
Samwel Supplies +.060 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM134649) £252.26 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Samwel Supplies +.070 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM234649)
S&S 3-1/2 Inch Replacement Cast Piston Kit +.020 Inch Size For 1984-1999 Evo Big Twin Models (920-0027)
S&S 3-1/2 Inch Replacement Cast Piston Kit +.020 Inch Size For 1984-1999 Evo Big Twin Models (920-0027) £165.52 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3-1/2 Inch Stock Bore Evo Stroker Piston Set (OEM Heads) +.020 Inch Size For 1984-1999 Evo Big Twin With 4-5/8 Inch Stroker Flywheels (106-5556)
S&S 3-1/2 Inch Stock Bore Evo Stroker Piston Set (OEM Heads) +.020 Inch Size For 1984-1999 Evo Big Twin With 4-5/8 Inch Stroker Flywheels (106-5556) Now £397.23 inc.VAT
Was £418.14
(Save £20.91)

  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Samwel Supplies +.010 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM624649)
Samwel Supplies +.010 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM624649) £252.26 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Samwel Supplies +.020 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM724649)
Samwel Supplies +.020 Inch Size Replacement Piston Kit For 1929-1973 45 Inch (750cc) Flathead Side Valves Models (ARM724649) £269.38 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 3-1/2 Inch Stock Bore Evo Stroker Piston Set (OEM Heads) +.010 Inch Size For 1984-1999 Evo Big Twin With 4-5/8 Inch Stroker Flywheels (106-5555)
S&S 3-1/2 Inch Stock Bore Evo Stroker Piston Set (OEM Heads) +.010 Inch Size For 1984-1999 Evo Big Twin With 4-5/8 Inch Stroker Flywheels (106-5555) £446.54 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance High 10:1 Compression Ratio +.005 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM416449)
KB Performance High 10:1 Compression Ratio +.005 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM416449) £231.74 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock Compression Standard Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM057449)
KB Performance Stock Compression Standard Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM057449) £231.74 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
S&S 88 To 97 Inch Big Bore Cylinder & Piston Kit In Black Finish For 1999-2005 Dyna, 1999-2006 Touring & 2000-2006 Softail With 88 Inch Engine (910-0205)
S&S 88 To 97 Inch Big Bore Cylinder & Piston Kit In Black Finish For 1999-2005 Dyna, 1999-2006 Touring & 2000-2006 Softail With 88 Inch Engine (910-0205) £1,114.28 inc.VAT
  UK stock

In stock

All orders are shipped out of our UK premises. Estimated shipping date 20 May.

×
S&S 4-1/8 Inch Bore +.020 Inch Size Forged Piston Kit For 124 Inch Engines (106-3964A)
S&S 4-1/8 Inch Bore +.020 Inch Size Forged Piston Kit For 124 Inch Engines (106-3964A) £571.97 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock Compression +.040 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM557449)
KB Performance Stock Compression +.040 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM557449) £231.74 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock Compression +.030 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM457449)
KB Performance Stock Compression +.030 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM457449) £231.74 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock Compression +.020 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM357449)
KB Performance Stock Compression +.020 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM357449) £231.74 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock Compression +.010 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM257449)
KB Performance Stock Compression +.010 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM257449) £231.74 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock Compression +.005 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM157449)
KB Performance Stock Compression +.005 Inch Diameter Big Bore Piston Kit For 1986-2020 XL883 (883 To 1200 Conversion) Models (ARM157449) £231.74 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
KB Performance Stock 9.0:1 CR +.040 Inch Diameter Replacement Piston Kit For 1988-2020 XL1200 Models (ARM426449)
KB Performance Stock 9.0:1 CR +.040 Inch Diameter Replacement Piston Kit For 1988-2020 XL1200 Models (ARM426449) £213.76 inc.VAT
  EU stock

Usually ships in 2-5 business days

All orders are shipped out of our UK premises. Estimated shipping date between 21 May and 24 May.

×
Copyright ©2008-2024 ARH Custom Ltd.