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Sportster – Engine & Gaskets

Browse engine & gaskets selected for Harley-Davidson Sportster motorcycles. Current products cover engine components and gaskets, seals and service parts, depending on the specification and application. Check each listing for exact model-year fitment, dimensions and installation requirements.

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£14.15
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James Gaskets Carb to Air Cleaner Housing Gasket. Keihin – 1977–1989 Big Twin; L1976–1987 XL…

Only 2 left!

James Gaskets Carb to Air Cleaner Housing Gasket. Keihin – 1977–1989 Big Twin; L1976–1987 XL… Foamet. Foamet gasket material has an aluminum core w...

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£14.15
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£14.15
£13.96
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£13.96
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£24.16
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James Gaskets Carburetor to Manifold Gasket. Keihin. Foamet – L1978–1989 Big Twin; L1978–1987 XL…

Only 2 left!

James Gaskets Carburetor to Manifold Gasket. Keihin. Foamet – L1978–1989 Big Twin; L1978–1987 XL… Foamet gasket material has an aluminum core with ...

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£24.16
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£24.16
£23.83
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£154.85 - £154.85
£154.85
£158.35
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£158.35

James Gaskets Motor Gasket Kit. 3-3/4" Bore MLS – 1999–2004 88" Twin Cam

Only 2 left!

James Gaskets Motor Gasket Kit. 3-3/4" Bore MLS – 1999–2004 88" Twin Cam Includes .040" thick 3-3/4" bore MLS (Multi Layer Steel) head gaskets and ...

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£154.85
£158.35
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£155.39

James Gaskets James Top-end Gasket Kit. Twin Cam 3-3/4" Bore MLS – 2005–2017 88"/96" Twin Cam A/B

Only 2 left!

James Gaskets James Top-end Gasket Kit. Twin Cam 3-3/4" Bore MLS – 2005–2017 88"/96" Twin Cam A/B Includes .040" MLS (Multi Layer Steel) head and R...

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£155.39
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£177.98
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£177.98

James Gaskets Top End Gasket Kit. XR1200 – 2008–2012 XR1200

Out of stock

James Gaskets Top End Gasket Kit. XR1200 – 2008–2012 XR1200 With 0.045" Firering® head gaskets; RCM (Rubber Coated Metal) cylinder base and RCM low...

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£18.98
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£18.72
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James Gaskets Breather Assembly Rebuild Kit – 2011–2017 Twin Cam

Only 3 left!

James Gaskets Breather Assembly Rebuild Kit – 2011–2017 Twin Cam Incl. gaskets; umbrella valves & breather filters. Fitment 11-17 Twin Cam (NU)...

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£18.98
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£18.72
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James Gaskets Cylinder Head & Base Gasket Kit. .050" MLS – 1999–2017 88"/96" Twin Cam

Only 2 left!

James Gaskets Cylinder Head & Base Gasket Kit. .050" MLS – 1999–2017 88"/96" Twin Cam .050" MLS (multi Layer Steel) head gaskets; final crush ....

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£72.69
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£95.24

James Gaskets Evo Cyl. Head & Base Gasket Kit. .045" Firering/RCM – 1984–1999 Evo Big Twin; 1986–2022 Evo XL…

Only 2 left!

James Gaskets Evo Cyl. Head & Base Gasket Kit. .045" Firering/RCM – 1984–1999 Evo Big Twin; 1986–2022 Evo XL… 3-5/8" big bore. Kit to service o...

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£66.02
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Cometic Rocker Cover Gasket Kit. M8. Standard – 2018–2025 Softail; 2017–2025…

Only 2 left!

Cometic Rocker Cover Gasket Kit. M8. Standard – 2018–2025 Softail; 2017–2025… Complete with top and bottom rocker cover gaskets and a complete push...

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£62.86
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£62.86
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£192.43
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£192.43
£189.75
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£189.75

Cometic EST Top End Gasket Kit. M8 4.075" Bore – 2018–2024 Softail; 2017–2025…

Only 2 left!

Cometic EST Top End Gasket Kit. M8 4.075" Bore – 2018–2024 Softail; 2017–2025… With MLS (Multi-Layer-Steel) .040" thick head gaskets. The SLS (Sing...

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£192.43
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£192.43
£189.75
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£189.75
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£192.43
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£192.43
£189.75
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£189.75

Cometic EST Top End Gasket Kit. M8 3.937" Bore – 2018–2024 Softail; 2017–2023…

Only 2 left!

Cometic EST Top End Gasket Kit. M8 3.937" Bore – 2018–2024 Softail; 2017–2023… EST (Extreme Sealing Technology). With MLS (Multi-Layer-Steel) .040"...

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£192.43
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£192.43
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£7.25
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£6.65
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Cometic Gasket Transmission Top Cover. .060" AFM – 2017–2019 FLT/Touring; 2017–2020 Trikes…

Out of stock

Cometic Gasket Transmission Top Cover. .060" AFM – 2017–2019 FLT/Touring; 2017–2020 Trikes… .060" AFM (Aluminum Foamet Material). OEM replacement r...

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£7.25
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£6.65
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£18.53
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Cometic Gasket Transmission Oil Pan. .032" AFM – 2017–2025 FLT/Touring; 2017–2025 Trikes

Only 2 left!

Cometic Gasket Transmission Oil Pan. .032" AFM – 2017–2025 FLT/Touring; 2017–2025 Trikes .032" thick AFM (Aluminum Foamette Material). OEM replacem...

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£18.53
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£18.53
£17.64
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£17.64
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£10.40
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£10.40
£9.57
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Cometic Gasket Engine to Transmission – 2018–2026 Softail; 2017–2026…

Only 2 left!

Cometic Gasket Engine to Transmission – 2018–2026 Softail; 2017–2026… Engine to transmission interface seal. OEM replacement reference 24400215; 24...

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£9.57
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£20.34
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£20.34
£19.35
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£19.35

Cometic Oil Seal Shifter Shaft – 2007–2026 Softail with Floorboards; Some…

Out of stock

Cometic Oil Seal Shifter Shaft – 2007–2026 Softail with Floorboards; Some… Fits behind shifter lever on transmission. OEM replacement reference 371...

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£20.34
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£19.35
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£19.35
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£10.40
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£9.57
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Cometic O-ring Transmission Oil Return – 2017–2025 FLT/Touring;; 2017–2025…

Out of stock

Cometic O-ring Transmission Oil Return – 2017–2025 FLT/Touring;; 2017–2025… Fits OEM 62700146 oil fitting return assembly (Twin Cooled models) and ...

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£10.40
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£10.40
£9.57
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£27.88
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£27.88
£26.55
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£26.55

Cometic Inner Primary Housing to Crankcase. Plain – 2018–2025 Softail; 2017–2025…

Out of stock

Cometic Inner Primary Housing to Crankcase. Plain – 2018–2025 Softail; 2017–2025… Plain color. Molded rubber seal on a metal base. OEM replacement ...

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£27.88
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£27.88
£26.55
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£10.40
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£10.40
£9.57
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£9.57

Cometic O-ring Oil Pump. Front – 2018–2025 Softail; 2017–2025…

Only 2 left!

Cometic O-ring Oil Pump. Front – 2018–2025 Softail; 2017–2025… Used between oil pump and camshaft support plate. OEM replacement reference 11900103...

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£10.40
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£10.40
£9.57
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£23.01
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£23.01
£21.89
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£21.89

Cometic Sprocket Shaft Oil Seals – 2018–2026 Softail; 2017–2026…

Only 2 left!

Cometic Sprocket Shaft Oil Seals – 2018–2026 Softail; 2017–2026… OEM replacement reference 11000134. Fitment 18-26 Softail; 17-26 FLT/Touring; 17-2...

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£23.01
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£23.01
£21.89
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£21.89
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£13.05
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£13.05
£12.42
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£12.42

Cometic O-ring Oil Pump Check Valve/Plug – 2014–2025 FLT/Touring: Twin Cooled Plug.…

Out of stock

Cometic O-ring Oil Pump Check Valve/Plug – 2014–2025 FLT/Touring: Twin Cooled Plug.… On right front outside of crankcase (Twin Cooled plug). Oil pu...

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£13.05
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£12.42
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£25.00
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£23.78
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Cometic Throttle Body to Air Cleaner Housing Seal – 2018–2024 Softail; 2017–2024…

Only 2 left!

Cometic Throttle Body to Air Cleaner Housing Seal – 2018–2024 Softail; 2017–2024… 107 models with round or 114" models with wedge (scoop) style air...

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£25.00
£23.78
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£13.05
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£12.40
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£12.40

Cometic Fuel Injector O-ring. Orange – 2018–2024 Softail; 2017–2025 Touring…

Out of stock

Cometic Fuel Injector O-ring. Orange – 2018–2024 Softail; 2017–2025 Touring… Orange. Viton rubber. Replaces the orange OEM injector O-ring. This o-...

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£13.05
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£13.05
£12.40
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£12.40
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£58.94
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£58.94
£56.10
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£56.10

Cometic Throttle Body to Manifold Gasket – 2018–2024 Softail; 2017–2025…

Out of stock

Cometic Throttle Body to Manifold Gasket – 2018–2024 Softail; 2017–2025… Induction module gasket. For earlier GEN1 M8 models with round intake port...

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£58.94
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£56.10
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£19.73
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Cometic Manifold Intake Seal. Front/Rear. Viton – 2018–2024 Softail; 2017–2025…

Only 2 left!

Cometic Manifold Intake Seal. Front/Rear. Viton – 2018–2024 Softail; 2017–2025… Viton rubber. Used between manifold and cylinder head. OEM replacem...

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£19.73
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£19.73
£18.79
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£18.79
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