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Sportster – Engine & Gaskets

Engine components, gaskets, seals and related parts for Harley-Davidson Sportster models.

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Arlen Ness TC 10-Gauge Pushrod Cover Set. Black – 1999–2017 Twin Cam

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Arlen Ness TC 10-Gauge Pushrod Cover Set. Black – 1999–2017 Twin Cam Gloss black contrast machined anodized finish. CNC machined 6061-T6 billet alu...

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£67.34
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Riverside Custom Head Bolt Cover Kit. Chrome Aluminum – L1985–2017 Big Twin; 1986–2022 XL…

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Riverside Custom Head Bolt Cover Kit. Chrome Aluminum – L1985–2017 Big Twin; 1986–2022 XL… Chrome plated machined aluminum construction. Fits over ...

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£67.34
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£346.03
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£295.59
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MCS Replacement 80" Flathead Piston Kit. Std – 1937–1941 80" (1300cc) 3-7/16" Bore…

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MCS Replacement 80" Flathead Piston Kit. Std – 1937–1941 80" (1300cc) 3-7/16" Bore… Cast aluminum pistons for a stock 1300cc Side Valve rebuild. Pi...

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£295.59
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£45.44
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Hastings 2-3/4" Bore Piston Ring Set. +.020" – 1950–1973 45" (750cc) Flathead; All…

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Hastings 2-3/4" Bore Piston Ring Set. +.020" – 1950–1973 45" (750cc) Flathead; All… Used with late style 1950-1973 type pistons with 1/16" gray iro...

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£43.27
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£288.12 - £288.12
£288.12
£290.34
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MCS Replacement 45" Flathead Piston Kit. +.050" – 1929–1973 45" (750cc) Side Valves

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MCS Replacement 45" Flathead Piston Kit. +.050" – 1929–1973 45" (750cc) Side Valves Cast aluminum OEM style pistons for a stock rebuild. Wil fit al...

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£290.34
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£334.69
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KB Performance Piston 96"/103" To 110" Twin Cam Piston Kit. STD – 2007–2017 110" Twin Cam

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KB Performance Piston 96"/103" To 110" Twin Cam Piston Kit. STD – 2007–2017 110" Twin Cam Forged big bore conversion piston set. Used for convertin...

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KB Performance Piston 96" To 103" Twin Cam Piston Kit. STD – 2007–2017 96" Twin Cam

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KB Performance Piston 96" To 103" Twin Cam Piston Kit. STD – 2007–2017 96" Twin Cam Forged piston set. For 96" (3-3/4") to 103" (3-7/8") big bore c...

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£334.69
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£323.11
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KB Performance Piston 88" To 95" Twin Cam Piston Kit. STD – 1999–2006 88" Twin Cam

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KB Performance Piston 88" To 95" Twin Cam Piston Kit. STD – 1999–2006 88" Twin Cam 88" (3-3/4") to 95" (3-7/8") big bore conversion forged piston s...

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£323.11
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£275.62
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£266.08
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£266.08

KB Performance Piston 3-5/8 Big Bore Forged Piston Kit. STD – 1948–1984 Pan; Shovel. With 3-5/8 Big…

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KB Performance Piston 3-5/8 Big Bore Forged Piston Kit. STD – 1948–1984 Pan; Shovel. With 3-5/8 Big… Forged 3-5/8 big bore piston set. Used with 3-...

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£266.08
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KB Performance Piston 1340 Shovel Forged Piston Kit. STD – 1979–1984 1340cc Shovel

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KB Performance Piston 1340 Shovel Forged Piston Kit. STD – 1979–1984 1340cc Shovel Forged piston set. 9.0:1 CR with 112cc head. Piston weight 416gr...

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£266.08
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£266.08
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KB Performance Piston 1200cc B.T. Forged Piston Kit. STD – 1941–1978 1200cc/80" Knuckle; Pan…

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KB Performance Piston 1200cc B.T. Forged Piston Kit. STD – 1941–1978 1200cc/80" Knuckle; Pan… Forged piston set. 8.5:1 CR with 112cc head. Standard...

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£266.08
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£311.07
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KB Performance Piston Piston Set Std – 1986–2022 XL883 (883 to 1200 Conversion)

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KB Performance Piston Piston Set Std – 1986–2022 XL883 (883 to 1200 Conversion) 883-1200 conversion forged piston set. 10.1 CR with 51cc head. Work...

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£300.31
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KB Performance Piston 1340 Evo B.T. Forged Piston Kit. STD – 1984–1999 Evo Big Twin

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KB Performance Piston 1340 Evo B.T. Forged Piston Kit. STD – 1984–1999 Evo Big Twin Forged piston set. 9.5:1 CR with 80cc head. Piston weight 365gr...

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£300.31
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£235.55
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£227.40
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KB Performance Piston XR1200/Buell XB Piston Kit. STD – 2008–2012 XR1200; 2008–2010 Buell 1200…

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KB Performance Piston XR1200/Buell XB Piston Kit. STD – 2008–2012 XR1200; 2008–2010 Buell 1200… Forged aluminum piston set for stock stroke and cyl...

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£227.40
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£233.68
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£225.59
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KB Performance Piston 96" To 103" Big Bore Piston Set. Std – 2007–2017 Twin Cam

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KB Performance Piston 96" To 103" Big Bore Piston Set. Std – 2007–2017 Twin Cam For 96" to 103" (3 3/4" to 3 7/8") big bore conversions. Used with ...

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£225.59
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£225.59
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£255.33
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£246.49
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KB Performance Piston 883-1200 Big Bore Piston Kit. STD – 1986–2022 XL883 (883 to 1200 Conversion)

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KB Performance Piston 883-1200 Big Bore Piston Kit. STD – 1986–2022 XL883 (883 to 1200 Conversion) STD compression. 883-1200 conversion piston set....

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£255.33
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£255.33
£246.49
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£246.49
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£319.16
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£308.12
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KB Performance Piston 88" To 95" Big Bore Piston Set. Std – 1999–2006 Twin Cam

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KB Performance Piston 88" To 95" Big Bore Piston Set. Std – 1999–2006 Twin Cam 88" to 95" big bore conversion. Used with stock heads and cylinders....

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£319.16
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£308.12
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£227.06
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KB Performance Piston XL883 Piston Kit. STD – 1986–2022 XL883

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KB Performance Piston XL883 Piston Kit. STD – 1986–2022 XL883 Standard replacement piston set. Stock 9.0:1 compression ratio. Piston weight 253gr. ...

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£219.20
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£5.97
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KB Performance Piston Keith Black, Replacement .792" Piston Lock Ring – All .792" KB Pistons

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KB Performance Piston Keith Black, Replacement .792" Piston Lock Ring – All .792" KB Pistons Fits all KB .792" piston pins. 2 used on 1 piston. Not...

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£5.69
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£306.43
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£295.83
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KB Performance Piston 88" To 95" Big Bore Piston Set. +.010" – 1999–2006 Twin Cam A/B

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KB Performance Piston 88" To 95" Big Bore Piston Set. +.010" – 1999–2006 Twin Cam A/B 88" to 95" big bore conversion kit. Used with stock heads and...

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£306.43
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£295.83
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£306.46
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£295.86
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£295.86

KB Performance Piston 3-5/8" Big Bore Piston Kit. +.010" – 1948–1984 Big Twin with 3-5/8 Big Bore…

Out of stock

KB Performance Piston 3-5/8" Big Bore Piston Kit. +.010" – 1948–1984 Big Twin with 3-5/8 Big Bore… 3-5/8" big bore piston set. Used with 3 5/8" big...

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£306.46
£295.86
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£295.86
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£255.33
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£255.33
£246.49
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£246.49

KB Performance Piston 1340cc Evo B.T. Pop-up Piston Kit. +.005" – 1984–1999 Evo Big Twin

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KB Performance Piston 1340cc Evo B.T. Pop-up Piston Kit. +.005" – 1984–1999 Evo Big Twin Pop-up high compression. 10.5:1 CR. Piston weight 360gr. P...

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£246.49
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£246.49
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£255.33
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KB Performance Piston 1340cc Evo B.T. Pop-up Piston Kit. STD – 1984–1999 Evo Big Twin

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KB Performance Piston 1340cc Evo B.T. Pop-up Piston Kit. STD – 1984–1999 Evo Big Twin Pop-up high compression. 9.5:1 CR. Piston weight 392gr. Pisto...

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£242.17
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£233.79
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KB Performance Piston 1340cc Evo B.T. Piston Kit. +.005" – 1984–1999 Evo Big Twin

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KB Performance Piston 1340cc Evo B.T. Piston Kit. +.005" – 1984–1999 Evo Big Twin 8.5:1 CR. Piston weight 350gr. Piston pin weight 97gr. Head type:...

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£242.17
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£233.79
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