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FXR – Engine

The FXR – Engine collection covers replacement, service and upgrade choices for Harley-Davidson, American V-twin and compatible motorcycle applications. Current products cover engine components, depending on the specification and application. Each product page provides the application and specification details needed to choose the right option.

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S&S Cycle Flywheel Assembly Steel Sold out
£1,679.34 - £1,679.34
£1,679.34
£1,679.34 - £1,679.34
£1,679.34

S&S Cycle Flywheel Assembly - Steel, Each for Harley-Davidson Touring, Softail, Dyna & FXR 1983-1999

Out of stock

DescriptionFlywheel Assembly Made of high-strength forged steel and designed for stock and high-performance custom applications Special keyed 6° la...

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£1,679.34 - £1,679.34
£1,679.34
£1,679.34 - £1,679.34
£1,679.34
Sold out
S&S Cycle Crankpin Assembly Oversize (+0,001") Steel
£172.51 - £172.51
£172.51
£172.51 - £172.51
£172.51

S&S Cycle Crankpin Assembly - Steel, Oversize (+0,001"), Each for Harley-Davidson Touring, Softail, Dyna & FXR 1981-1984

Low stock

DescriptionCrankpin Assembly For use in stock and S&S flywheels Includes crankpin, nuts and key Made in the USA Specifications Style: Oversize...

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£172.51 - £172.51
£172.51
£172.51 - £172.51
£172.51
S&S Cycle Crankpin Assembly Standard Steel
£150.23 - £150.23
£150.23
£150.23 - £150.23
£150.23

S&S Cycle Crankpin Assembly - Each, Standard, Steel for Harley-Davidson Touring, Softail, Dyna & FXR 1981-1984

In stock

DescriptionCrankpin Assembly For use in stock and S&S flywheels Includes crankpin, nuts and key Made in the USA Specifications Units: Each Ri...

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£150.23 - £150.23
£150.23
£150.23 - £150.23
£150.23
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£56.07 - £56.07
£56.07
£56.07 - £56.07
£56.07

S&S Cycle Replacement Ring Set for S&S Pistons - Ring,set,piston,3-5/8",hc,+.030",.058,.058,.185, for Harley-Davidson Tou for Harley-Davidson Touring, Softail, Dyna & FXR 1936-1999

Low stock

DescriptionReplacement Ring Set for S&S Pistons Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U...

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£56.07 - £56.07
£56.07
£56.07 - £56.07
£56.07
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£57.18 - £57.18
£57.18
£57.18 - £57.18
£57.18

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings Std-size for 3 5/8" Pistons for Harley-Davidson Touring, Softail, Dyna & FXR 1966-1984

In stock

DescriptionReplacement Ring Set for S&S Pistons Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U...

View full details
£57.18 - £57.18
£57.18
£57.18 - £57.18
£57.18
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£56.07 - £56.07
£56.07
£56.07 - £56.07
£56.07

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings +0.090" for 3 7/16" Pistons for Harley-Davidson Touring, Ha for Harley-Davidson Touring, Softail, Dyna & FXR 1966-1984

Low stock

DescriptionReplacement Ring Set for S&S Pistons Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U...

View full details
£56.07 - £56.07
£56.07
£56.07 - £56.07
£56.07
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£57.18 - £57.18
£57.18
£57.18 - £57.18
£57.18

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings +0.060" for 3 7/16" Pistons for Harley-Davidson Touring, Softail, Dyna & FXR 1966-1984

In stock

DescriptionReplacement Ring Set for S&S Pistons Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U...

View full details
£57.18 - £57.18
£57.18
£57.18 - £57.18
£57.18
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£58.79 - £58.79
£58.79
£58.79 - £58.79
£58.79

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings +0.030" for 3 7/16" Pistons for Harley-Davidson Touring, Ha for Harley-Davidson Touring, Softail, Dyna & FXR 1966-1984

Low stock

DescriptionReplacement Ring Set for S&S Pistons Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U...

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£58.79 - £58.79
£58.79
£58.79 - £58.79
£58.79
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£57.18 - £57.18
£57.18
£57.18 - £57.18
£57.18

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings Std-size for 3 7/16" Pistons for Harley-Davidson Touring, Softail, Dyna & FXR 1966-1984

Low stock

DescriptionReplacement Ring Set for S&S Pistons Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U...

View full details
£57.18 - £57.18
£57.18
£57.18 - £57.18
£57.18
S&S Cycle Replacement Ring Set for S&S Pistons Piston Rings
£67.58 - £67.58
£67.58
£67.58 - £67.58
£67.58

S&S Cycle Replacement Ring Set for S&S Pistons - Piston Rings Std-size for 3 1/2" Pistons for Harley-Davidson Touring, Softail, Sportster & Dyna 1983-2003

In stock

DescriptionReplacement Ring Set for S&S Pistons Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the U...

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£67.58 - £67.58
£67.58
£67.58 - £67.58
£67.58
S&S Cycle Piston Kit for S&S Motors Replacement
£159.27 - £159.27
£159.27
£159.27 - £159.27
£159.27

S&S Cycle Piston Kit for S&S Motors - Replacement for Harley-Davidson Touring, Softail, Dyna & FXR 1984-1999

In stock

DescriptionPiston Kit for S&S Motors Piston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replace...

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£159.27 - £159.27
£159.27
£159.27 - £159.27
£159.27
S&S Cycle Piston Kit for S&S Motors Replacement
£149.33 - £149.33
£149.33
£149.33 - £149.33
£149.33

S&S Cycle Piston Kit for S&S Motors - Replacement for Harley-Davidson Touring, Softail, Dyna & FXR 1984-1999

In stock

DescriptionPiston Kit for S&S Motors Piston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replace...

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£149.33 - £149.33
£149.33
£149.33 - £149.33
£149.33
S&S Cycle Piston Kit for S&S Motors Replacement
£149.33 - £149.33
£149.33
£149.33 - £149.33
£149.33

S&S Cycle Piston Kit for S&S Motors - Replacement for Harley-Davidson Touring, Softail, Dyna & FXR 1984-1999

Low stock

DescriptionPiston Kit for S&S Motors Piston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replace...

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£149.33 - £149.33
£149.33
£149.33 - £149.33
£149.33
S&S Cycle Forged 3-5/8" Bore Piston Kit
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59

S&S Cycle Forged 3-5/8" Bore Piston Kit - Forged Piston KIT 3 5/8" +0.030" for Harley-Davidson Touring, Softail, Dyna & FXR 1936-1984

In stock

DescriptionForged 3-5/8" Bore Piston Kit Forged pistons for superior strength Modern alloys and piston skirt profiles for low noise and long engine...

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£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59
S&S Cycle Forged 3-5/8" Bore Piston Kit
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59

S&S Cycle Forged 3-5/8" Bore Piston Kit - Forged Piston KIT 3 5/8" +0.020" for Harley-Davidson Touring, Softail, Dyna & FXR 1936-1984

In stock

DescriptionForged 3-5/8" Bore Piston Kit Forged pistons for superior strength Modern alloys and piston skirt profiles for low noise and long engine...

View full details
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59
S&S Cycle Forged 3-5/8" Bore Piston Kit
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59

S&S Cycle Forged 3-5/8" Bore Piston Kit - Forged Piston KIT 3 5/8" +0.010" for Harley-Davidson Touring, Softail, Dyna & FXR 1936-1984

In stock

DescriptionForged 3-5/8" Bore Piston Kit Forged pistons for superior strength Modern alloys and piston skirt profiles for low noise and long engine...

View full details
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59
S&S Cycle Forged 3-5/8" Bore Piston Kit
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59

S&S Cycle Forged 3-5/8" Bore Piston Kit - Forged Piston KIT 3 5/8" Std-size for Harley-Davidson Touring, Softail, Dyna & FXR 1936-1984

In stock

DescriptionForged 3-5/8" Bore Piston Kit Forged pistons for superior strength Modern alloys and piston skirt profiles for low noise and long engine...

View full details
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59
S&S Cycle Piston Kit 80" Stock Big Twin Low Compression
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59

S&S Cycle Piston Kit 80" Stock Big Twin - Low Compression for Harley-Davidson Touring, Softail, Dyna & FXR 1936-1984

In stock

DescriptionPiston Kit 80" Stock Big Twin For 80" stock big twin motors Forged pistons for superior strength Piston kits include set of pistons, rin...

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£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59
S&S Cycle Piston Kit 80" Stock Big Twin Low Compression
Sold out
£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59

S&S Cycle Piston Kit 80" Stock Big Twin - Low Compression for Harley-Davidson Touring, Softail, Dyna & FXR 1936-1984

Out of stock

DescriptionPiston Kit 80" Stock Big Twin For 80" stock big twin motors Forged pistons for superior strength Piston kits include set of pistons, rin...

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£427.59 - £427.59
£427.59
£427.59 - £427.59
£427.59
Sold out
S&S Cycle Sidewinder® Big Bore Stroker Engine Performance Kit Black
£3,949.54 - £3,949.54
£3,949.54
£3,949.54 - £3,949.54
£3,949.54

S&S Cycle Sidewinder® Big Bore Stroker Engine Performance Kit - Black for Harley-Davidson Touring, Softail, Dyna & FXR 1970-1984

Low stock

DescriptionSidewinder® Big Bore Stroker Engine Performance Kit Sidewinder Big Bore Stroker Kit Contains nearly everything needed to take a stock 74...

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£3,949.54 - £3,949.54
£3,949.54
£3,949.54 - £3,949.54
£3,949.54
S&S Cycle Sidewinder® Big Bore Stroker Engine Performance Kit Black
£3,949.54 - £3,949.54
£3,949.54
£3,949.54 - £3,949.54
£3,949.54

S&S Cycle Sidewinder® Big Bore Stroker Engine Performance Kit - Black for Harley-Davidson Touring, Softail, Dyna & FXR 1970-1984

Low stock

DescriptionSidewinder® Big Bore Stroker Engine Performance Kit Sidewinder Big Bore Stroker Kit Contains nearly everything needed to take a stock 74...

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£3,949.54 - £3,949.54
£3,949.54
£3,949.54 - £3,949.54
£3,949.54
S&S Cycle Top End Kit Cylinder Kit
£3,808.04 - £3,808.04
£3,808.04
£3,808.04 - £3,808.04
£3,808.04

S&S Cycle Top End Kit - TOP END KIT 80" Sh-80 Black for Harley-Davidson Touring, Softail, Dyna & FXR 1979-1984

Low stock

DescriptionTop End Kit Includes a set of S&S Shovelhead-style cylinder heads, a pair of S&S stock bore cylinders (3-7/16" for 74" engines o...

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£3,808.04 - £3,808.04
£3,808.04
£3,808.04 - £3,808.04
£3,808.04
James Gasket Rocker Cover Washer Fibre 8 Pack
£6.80 - £6.80
£6.80
£6.80 - £6.80
£6.80

James Gasket Rocker Cover Washer - 8 Pack, Fiber for Harley-Davidson Touring, Softail, Sportster & Dyna 1983-2003

In stock

DescriptionRocker Cover WasherMade in the USASpecifications Units: 8 Pack Product Name: Washer Riding Style: Street Application: Rocker Cover ...

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£6.80 - £6.80
£6.80
£6.80 - £6.80
£6.80
James Gasket Carburetor-to-Intake Manifold Seal Kit
£16.17 - £16.17
£16.17
£16.17 - £16.17
£16.17

James Gasket Carburetor-to-intake Manifold Seal Kit - Gasket KIT Intake Manifold to Cylinder for Harley-Davidson To for Harley-Davidson Touring, Softail, Sportster & Dyna 1978-1985

In stock

DescriptionCarburetor-to-Intake Manifold Seal KitKit contains carb-to-intake seal and two intake-to-cylinder head sealsSpecifications Application:...

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£16.17 - £16.17
£16.17
£16.17 - £16.17
£16.17

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