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S&S Cycle

Shop S&S Cycle performance parts for Harley-Davidson motorcycles, including engines, big-bore kits, camshafts, air cleaners, fuel systems and exhaust components for street, touring and performance builds.

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S&S Forged 3-5/8" Big Bore Piston Kit. +.030" – 1936–1984 88"; 93"; 93"hc; 96"; 98" and…

Low stock

Description Fits all 3-5/8" big bore 36-84 B.T. models with 4-1/4" to 5" stroke flywheels with the correct flywheel diameter of 8-1/2. Note that 4-...

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S&S Forged 3-5/8" Big Bore Piston Kit. +.060" – 1936–1984 88"; 93"; 93"hc; 96"; 98" and…

Low stock

Description Fits all 3-5/8" big bore 36-84 B.T. models with 4-1/4" to 5" stroke flywheels with the correct flywheel diameter of 8-1/2. Note that 4-...

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£422.97
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S&S 883-1200 Conversion Piston Kit. Std – 1986–2022 XL883; 1986–1987 XL1100

Low stock

Description Used to convert a stock 883cc or 1100cc Sportster to 1200cc. Gives 1:9.5 CR with stock heads. Requires boring of stock cylinders to the...

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£487.27
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S&S Evo Stroker Piston Set (OEM Heads). +.010" – 1984–1999 Evo Big Twin with 4-5/8"…

Low stock

Description 89". 3-1/2" stock bore x 4-5/8" stroke. Used with stock cylinders and heads in combination with 4-5/8" stroker flywheels. Converts the ...

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£487.27 - £487.27
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S&S Power-Tune Duals. Header Pipes for Touring – 2009–2016 FLT/Touring

Low stock

Description Chrome; with chrome heat shields. True independent duals look great but create a loss in torque; a horrendous idea in the minds of S&am...

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S&S Cylinder Head/Base & Exhaust Gasket Kit. 3.927" – 1999–2017 Twin Cam with 3.927" Bore…

Low stock

Description Kit includes cylinder head gaskets; cylinder base base & exhaust gaskets. Note: Rocker cover gaskets are not included. Fitment99-17...

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S&S Chain Drive 509 Camshaft Kit – 1999–2006 Twin Cam

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Description Complete kit with two chain driven camshafts with installation kit that includes a gear cover gasket; cam bearings; retaining ring; o-r...

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£387.05
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S&S Roller Rocker Arm. Front Exhaust/Rear Intake – 1984–2017 Big Twin; 1986–2022 XL…

Low stock

Description Complete roller rocker arm assembly. Direct replacement for S&S 900796 roller rocker arm set. Fitment 84-17 Big Twin (Excl. M8) 86-...

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S&S Roller Rocker Arm. Rear Exhaust/Front Intake – 1984–2017 Big Twin; 1986–2022 XL…

Low stock

Description Complete roller rocker arm assembly. Direct replacement for S&S 900796 roller rocker arm set. Fitment 84-17 Big Twin (Excl. M8) 86-...

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S&S Rocker Arm Front Exhaust or Rear Intake – 1984–2017 Big Twin; 1986–2022 XL…

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Description Forged rocker arm assembly only. Stock replacement for S&S 531371 rocker arm set. Fitment 84-17 Big Twin (Excl. M8) 86-22 XL Sports...

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S&S Breather Update Conversion Kit for S&S Evo Air Cleaners – 1993–1999 Evo Big Twin

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Description Used to update the early S&S system; where o-ring seals were used; to silicone coated washers. Banjo fittings do not require remova...

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S&S Superstock Evo Cyl. Head Kit. Natural – 1984–1999 Evo Big Twin

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Description Natural finish. Bolt-on with stock style flat top pistons. 76cc high compression heads for approx. 10:1 CR (80"); 9.4:1 (89"); 10:1 (96...

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S&S Superstock Evo Cyl. Head Kit. Black – 1984–1999 Evo Big Twin

Low stock

Description Black powder coated finish. Bolt-on with stock style flat top pistons. 76cc high compression heads for approx. 10:1 CR (80"); 9.4:1 (89...

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Flywheel Assembly for 98" V-Series 3-5/8 Bore Engines – 1984–1999 Style S&S V96 Engines with…

Low stock

Description 4-5/8" stroke with 8-1/2" diameter flywheels. Stock replacement for S&S engines with carburetor. No hassle in rebuilding or getting...

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S&S Heavy Duty Top Motor Mount. Zinc – 1948–1984 Pan & Shovel Models with Stock…

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Description Zinc plated finish. Compatible with 5.330" stock to 5.750 stroker cylinders. Custom replacement for 16853-48 Fitment48-84 Pan & Sho...

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S&S 54-E77 B.t. Pinion Shaft Gear Kit. White – 1954–1965 Panhead; 66-E77 Shovelhead

Low stock

Description White color coded for size. Complete kit for scratch builds or rebuilds. Complete with all components on the pinion shaft. Note: Kit mu...

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S&S 54-E77 B.t. Pinion Shaft Gear Kit. Yellow – 1954–1965 Panhead; 66-E77 Shovelhead

Low stock

Description Yellow color coded for size. Complete kit for scratch builds or rebuilds. Complete with all components on the pinion shaft. Note: Kit m...

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S&S Valve Spring Kit. Std to .480" Valve Lift – 1936–1947 Knucklehead; Knuckles with S&S…

Low stock

Description High performance valve spring kit. Includes steel top collars; lower collars; valve springs and valve keys. Fits stock Knuckleheads; S&...

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Panhead Rock Covers Set. Chrome – 1948–1965 Panhead

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Description Chrome plated steel. OEM style replacement. OEM replacement reference 17500-48. Note: See 531990 for D-ring set; 532451 rubber rocker c...

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S&S Rocker Arm Housing Set. Polished – 1936–1947 Knucklehead; S&S Kn-Series…

Low stock

Description Polished sand cast aluminum finish. Reproduction of the OEM front & rear rocker arm housings; perfect for restaurations. Replaces f...

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Sprocket Shaft Assembly – 1977–1985 XL Sportster with S&S…

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Description Fits S&S D; SBD; SC; SCD; SCDR and SCR flywheels only. Fitment77-85 XL Sportster with S&S flywheels (NU)Product Details Brand:...

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Sprocket Shaft Assembly – 1957–1976 XL Sportster with S&S Sb…

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Description Fits S&S SB flywheels only. Fitment57-76 XL Sportster with S&S SB flywheels (NU)Product Details Brand: S&S Category: Moto...

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S&S Sprocket Shaft Nut. XL Sportster – 1957–2021 XL Sportster with S&S Sprocket…

Low stock

Description Fits all S&S sprocket shafts for XL Sportsters. Fitment57-21 XL Sportster with S&S sprocket shaftsProduct Details Brand: S&...

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S&S Air Cleaner Kit without Cover – 2016–2017 Softail; 2017 Fxdls; 2008–2013…

Low stock

Description Designed to be re-used with the stock air cleaner cover for a true stealth high performance intake. Also allows installation of the Ste...

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