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Pistons, Cylinders & Crankshafts

Browse pistons, cylinders & crankshafts for Harley-Davidson, American V-twin and compatible motorcycle applications. Check the product details and stated fitment before ordering.

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£124.77 - £124.77
£124.77
£124.77 - £124.77
£124.77

S&S Cycle Replacement Cylinder Studs - 8 Pack, Steel - Black for Harley-Davidson Touring, Softail, Dyna & Trike 1999-2017

In stock

DescriptionReplacement Cylinder Studs High quality replacement cylinder studs provide increased strength and extended durability Meet or exceed OE ...

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£124.77 - £124.77
£124.77
£124.77 - £124.77
£124.77
£108.64 - £108.64
£108.64
£108.64 - £108.64
£108.64

S&S Cycle Replacement Cylinder Studs - 8 Pack, Steel - Black for Harley-Davidson Touring, Softail, Dyna & FXR 1984-1999

In stock

DescriptionReplacement Cylinder Studs High quality replacement cylinder studs provide increased strength and extended durability Meet or exceed OE ...

View full details
£108.64 - £108.64
£108.64
£108.64 - £108.64
£108.64
£79.14 - £79.14
£79.14
£79.14 - £79.14
£79.14

S&S Ring Set for S&S Pistons #94-1290X

In stock

DescriptionReplacement Ring Set for S&S PistonsReplacement ring sets for S&S pistons onlyRings come as sets for two pistonsMade in the USAS...

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£79.14 - £79.14
£79.14
£79.14 - £79.14
£79.14
£737.61 - £737.61
£737.61
£737.61 - £737.61
£737.61

S&S Heavy-Duty Connecting Rod Sets #34-7004

In stock

DescriptionHeavy-Duty Connecting Rod SetsHigh-quality, heavy duty rod sets come complete and ready to installSet includes front and rear rods, cran...

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£737.61 - £737.61
£737.61
£737.61 - £737.61
£737.61
£2,492.00 - £2,492.00
£2,492.00
£2,492.00 - £2,492.00
£2,492.00

S&S Super Stock™ Engine Case #31-0004

In stock

DescriptionSuper Stock® Big Bore Engine Case3.625" big bore cylinder case for any stroke up to and including 5" and most stock length connecting ro...

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£2,492.00 - £2,492.00
£2,492.00
£2,492.00 - £2,492.00
£2,492.00
£1,749.78 - £1,749.78
£1,749.78
£1,749.78 - £1,749.78
£1,749.78

S&S Super Stock™ Engine Case #31-0003

In stock

DescriptionSuper Stock® Alternator Style Engine Case3.5" stock bore cylinder case for any stroke up to and including 5" and most stock length conne...

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£1,749.78 - £1,749.78
£1,749.78
£1,749.78 - £1,749.78
£1,749.78
£1,791.35 - £1,791.35
£1,791.35
£1,791.35 - £1,791.35
£1,791.35

S&S Super Stock™ Engine Case #31-0000

Low stock

DescriptionSuper Stock® Alternator Style Engine Case3.5" stock bore cylinder case for any stroke up to and including 5" and most stock length conne...

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£1,791.35 - £1,791.35
£1,791.35
£1,791.35 - £1,791.35
£1,791.35
£2,367.15 - £2,367.15
£2,367.15
£2,367.15 - £2,367.15
£2,367.15

S&S Super Stock™ Engine Case #31-0005

In stock

DescriptionSuper Stock® Alternator Style Engine Case3.5" stock bore cylinder case for any stroke up to and including 5" and most stock length conne...

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£2,367.15 - £2,367.15
£2,367.15
£2,367.15 - £2,367.15
£2,367.15
£589.35 - £589.35
£589.35
£589.35 - £589.35
£589.35

S&S Heavy-Duty Connecting Rod Sets #34-7013

In stock

DescriptionHeavy-Duty Connecting Rod SetsHigh-quality, heavy duty rod sets come complete and ready to installSet includes front and rear rods, cran...

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£589.35 - £589.35
£589.35
£589.35 - £589.35
£589.35
£79.14 - £79.14
£79.14
£79.14 - £79.14
£79.14

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings for 4" Forged Piston +0.010" for Harley-Davidson Touring, Softail, Dyna & FXR 1986-1999

In stock

DescriptionRing Set for S&S PistonsReplacement ring set for S&S PistonsDetailsBore Size : 4,000"Piston Size : +0,010"Product Name : Piston ...

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£79.14 - £79.14
£79.14
£79.14 - £79.14
£79.14
£66.70 - £66.70
£66.70
£66.70 - £66.70
£66.70

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings for 4" Forged Piston Standard-size for Harley-Davidson Touring, Softail, Dyna & FXR 1986-1999

In stock

DescriptionRing Set for S&S PistonsReplacement ring set for S&S PistonsDetailsUnits : SetBore Size : 4,000"Piston Size : StandardPiston Siz...

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£66.70 - £66.70
£66.70
£66.70 - £66.70
£66.70
£80.39 - £80.39
£80.39
£80.39 - £80.39
£80.39

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings for 3 5/8" Forged Piston +0.020" for Harley-Davidson Touring, Softail, Dyna & FXR 1986-1999

Low stock

DescriptionTaylor 8mm Spiro-Pro Universal Spark Plug Wire Set. Black – Universal for Use with Pre-Twin Cam… Includes 24" long wires with pre-attach...

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£80.39 - £80.39
£80.39
£80.39 - £80.39
£80.39
£80.39 - £80.39
£80.39
£80.39 - £80.39
£80.39

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings for 3 5/8" Forged Piston +0.010" for Harley-Davidson Touring, Softail, Dyna & FXR 1986-1999

In stock

DescriptionRing Set for S&S PistonsReplacement ring set for S&S PistonsDetailsUnits : SetBore Size : 3,635"Piston Size : +0,010"Piston Size...

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£80.39 - £80.39
£80.39
£80.39 - £80.39
£80.39
£71.00 - £71.00
£71.00
£71.00 - £71.00
£71.00

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings for 3 5/8" Forged Piston Standard-size for Harley-Davidson for Harley-Davidson Touring, Softail, Dyna & FXR 1986-1999

In stock

DescriptionRing Set for S&S PistonsReplacement ring set for S&S Pistons.059” top ringDetailsPiston Size : StandardBore Size : 3,625"Piston ...

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£71.00 - £71.00
£71.00
£71.00 - £71.00
£71.00
£192.72 - £192.72
£192.72
£192.72 - £192.72
£192.72

S&S Cycle Pinion Shaft Gear Kit - Steel for Harley-Davidson Touring, Softail, Dyna & FXR 1983-1989

In stock

DescriptionPinion Shaft Conversion KitMust be used as a set or with OEM equivalentsMade in the U.S.A.DetailsType : Pinion ShaftUnits : KitProduct N...

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£192.72 - £192.72
£192.72
£192.72 - £192.72
£192.72
£2,688.03 - £2,688.03
£2,688.03
£2,688.03 - £2,688.03
£2,688.03

S&S Cycle Super Stock® Generator Engine Case - Kit, A356 T-6 Aluminum Alloy - Natural for Harley-Davidson Touring 1965-1969

In stock

DescriptionSuper Stock Generator Engine CaseCast from A356 T-6 heat-treated aluminium alloyIncludes crankcase bolts, washers and nuts, cylinder mou...

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£2,688.03 - £2,688.03
£2,688.03
£2,688.03 - £2,688.03
£2,688.03
£133.66 - £133.66
£133.66
£133.66 - £133.66
£133.66

S&S Cycle Rocker Arm Stud - Kit - Black / Oxide for Harley-Davidson Touring, Softail, Dyna & Trike 2017-2026

In stock

DescriptionRocker Arm Stud Four required per engine, sold each Zinc-plated 5/16"-18, 5/16"-24 1.910" Made in the U.S.A. SpecificationsColour/Finish...

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£133.66 - £133.66
£133.66
£133.66 - £133.66
£133.66
£2,498.48 - £2,498.48
£2,498.48
£2,498.48 - £2,498.48
£2,498.48

S&S Flywheel Assembly #320-0601

Low stock

DescriptionFlywheel Assembly Perfect for gear drive camshafts Consistent balance and precision machining Balance gear is installed for easy install...

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£2,498.48 - £2,498.48
£2,498.48
£2,498.48 - £2,498.48
£2,498.48
£2,498.48 - £2,498.48
£2,498.48
£2,498.48 - £2,498.48
£2,498.48

S&S Flywheel Assembly #320-0598

In stock

DescriptionFlywheel Assembly Perfect for gear drive camshafts Consistent balance and precision machining Balance gear is installed for easy install...

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£2,498.48 - £2,498.48
£2,498.48
£2,498.48 - £2,498.48
£2,498.48
£1,997.76 - £1,997.76
£1,997.76
£1,997.76 - £1,997.76
£1,997.76

S&S Flywheel Assembly #32-2235

In stock

DescriptionFlywheel AssemblyFlywheels are CNC machined from heat-treated, closed die, steel forgings, and are stronger than cast iron or late style...

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£1,997.76 - £1,997.76
£1,997.76
£1,997.76 - £1,997.76
£1,997.76
£28.90 - £28.90
£28.90
£28.90 - £28.90
£28.90

Gardner-Westcott Exhaust Studs #05-61129

Low stock

DescriptionExhaust Stud 5/16"-18(course thread) - 5/16"- 24(fine thread) x 1-11/16" stud Made in the U.S.A. SpecificationsType : ExhaustProduct Nam...

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£28.90 - £28.90
£28.90
£28.90 - £28.90
£28.90
Colony Acorn Front Belt Drive Pulley Nut : Part #DS193813 - Hogparts UK
£13.72 - £13.72
£13.72
£13.72 - £13.72
£13.72

Colony Acorn Front Belt Drive Pulley Nut #7816-1

In stock

DescriptionFront Belt Drive Pulley Nut Chrome front pulley nut for open primary belt drive applications Made in the USA SpecificationsType : AcornP...

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£13.72 - £13.72
£13.72
£13.72 - £13.72
£13.72
£30.91 - £30.91
£30.91
£30.91 - £30.91
£30.91

Colony Replacement Stud Set #8858-8

In stock

DescriptionReplacement Cylinder Stud SetHeat-treated for strength and durabilityEqual or surpass original equipmentSpecificationsUnits : 8 PackProd...

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£30.91 - £30.91
£30.91
£30.91 - £30.91
£30.91
Colony Replacement Cylinder Stud Set : Part #DS189952 - Hogparts UK
£83.13 - £83.13
£83.13
£83.13 - £83.13
£83.13

Colony Replacement Cylinder Stud Set - 8 Pack - Black for Harley-Davidson Sportster & Buell 1986-2022

In stock

DescriptionReplacement Cylinder Stud Set Heat-treated for strength and durability Equal or surpass original equipment Not for '21-'22 Sportster S/R...

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£83.13 - £83.13
£83.13
£83.13 - £83.13
£83.13

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