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Engine & Performance

Choose from Engine & Performance products for Harley-Davidson, American V-twin and compatible motorcycle applications. Across the range you will find products for engine components. Compatibility varies, so match the stated model, year and technical details before ordering.

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£115.86
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National Cycle Heat Deflector Set L&R. Dark Tinted – 2009–2025 FLT/Touring

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National Cycle Heat Deflector Set L&R. Dark Tinted – 2009–2025 FLT/Touring Dark gray 95% tinted. Left & right deflector made of tough FMR h...

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Cult-Werk Air Cleaner Cover. Slotted, Paintable Finish – 2018–2024 Softail with 107" Engine with…

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Cult-Werk Air Cleaner Cover. Slotted, Paintable Finish – 2018–2024 Softail with 107" Engine with… Unpainted matte black finish. ABS construction. 5...

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Arlen Ness Stage 1 Big Sucker Air Cleaner Kit. 10-Gauge Chr – 2018–2024 Softail; 2017–2025…

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Arlen Ness Stage 1 Big Sucker Air Cleaner Kit. 10-Gauge Chr – 2018–2024 Softail; 2017–2025… Chrome plated finish. Air filter element pre-oiled with...

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Arlen Ness Stage 1 Big Sucker Air Cleaner Kit. Bev. Chrome – 2018–2024 Softail; 2017–2025…

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Arlen Ness Stage 1 Big Sucker Air Cleaner Kit. Bev. Chrome – 2018–2024 Softail; 2017–2025… Beveled outer chrome plated billet cover. Air filter ele...

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Samwel Cork Gasket Set, Gas Cap / Oil Cap – 1936–1973 45" (750cc) Flatheads

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Samwel Cork Gasket Set, Gas Cap / Oil Cap – 1936–1973 45" (750cc) Flatheads OEM style reproduction gasket set. Repl. OEM 3509-36 for cork left side...

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S&S M8 Gear Driven 540G Camshaft Kit – 2018–2026 Softail; 2017–2026…

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S&S M8 Gear Driven 540G Camshaft Kit – 2018–2026 Softail; 2017–2026… Torque cam designed to offer generous pulling power up that hill; or quick...

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Kibblewhite KPMI, Inconel White Diamond Valve, Exhaust. Oversize – 2017–2025 M8

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Kibblewhite KPMI, Inconel White Diamond Valve, Exhaust. Oversize – 2017–2025 M8 Inconel with hard chrome finish. Standard size replacement with ove...

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Kibblewhite KPMI, White Diamond Valve, Exhaust. STD – 2017–2025 M8

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Kibblewhite KPMI, White Diamond Valve, Exhaust. STD – 2017–2025 M8 Hard chrome finish. Standard size replacement. Dimensions: 1.264" head dia. x 0....

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Kibblewhite KPMI, White Diamond Valve, Intake. STD – 2017–2025 M8

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Kibblewhite KPMI, White Diamond Valve, Intake. STD – 2017–2025 M8 Standard size replacement. Dimensions: 1.571" head dia. x 0.2347" stem dia. x 4.0...

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Mustang Tank BiB (Dash Panel). With Pouch – Dyna: 2008–2013 FXDF Fat Bob; 2006–2008…

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Mustang Tank BiB (Dash Panel). With Pouch – Dyna: 2008–2013 FXDF Fat Bob; 2006–2008… Black. This tank bib is contoured to hug the fuel tank without...

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DK Custom Rocker Locker Kit. Twin Cam Custom – 1999–2017 Softail; Dyna; 1999–2016…

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DK Custom Rocker Locker Kit. Twin Cam Custom – 1999–2017 Softail; Dyna; 1999–2016… Twin Cam engines make a lot of noise inside the rocker cover. Th...

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DK Custom Rocker Locker Kit. Evo B.T – 1984–1999 Evo Big Twin

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DK Custom Rocker Locker Kit. Evo B.T – 1984–1999 Evo Big Twin Evolution engines make a lot of noise inside the rocker cover. This is due to the way...

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DK Custom Rocker Locker Kit. Sportster – 1986–2006 Sportster

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DK Custom Rocker Locker Kit. Sportster – 1986–2006 Sportster Evolution engines make a lot of noise inside the rocker cover. This is due to the way ...

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DK Custom Rocker Locker Kit. XL Sportster – 2007–2022 XL Sportster

Only 1 left!

DK Custom Rocker Locker Kit. XL Sportster – 2007–2022 XL Sportster Evolution engines make a lot of noise inside the rocker cover. This is due to th...

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DK Custom Rocker Locker Kit. Twin Cam – 1999–2017 Softail; Dyna; 1999–2016…

Only 3 left!

DK Custom Rocker Locker Kit. Twin Cam – 1999–2017 Softail; Dyna; 1999–2016… Twin Cam engines make a lot of noise inside the rocker cover. This is d...

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Samwel Screw, Air Intake (Choke) Lever. White – 1933–1952 45" Flathead; L1933–1948…

Only 2 left!

Samwel Screw, Air Intake (Choke) Lever. White – 1933–1952 45" Flathead; L1933–1948… White plated. Linkert M-18; 41; 42; 51; 52; 54. carbs. Repl. 27...

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Samwel Rod, Oil Tank Gauge – 1937-52 45" (750cc) WL/G Flatheads

Only 1 left!

Samwel Rod, Oil Tank Gauge – 1937-52 45" (750cc) WL/G Flatheads OEM reproduction. Used to measure the motor oil level. Fits the OEM right side oil ...

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K&N Replacement Air Filter Element – Indian: 2020 FTR Rally; 2019–2020…

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K&N Replacement Air Filter Element – Indian: 2020 FTR Rally; 2019–2020… K&N filter elements are designed to achieve high; virtually unrestr...

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Arlen Ness Sidekick Air Cleaner Assembly. Chrome – 1991–2022 XL Sportster

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Arlen Ness Sidekick Air Cleaner Assembly. Chrome – 1991–2022 XL Sportster Chrome plated. This is the Sidekick; your trustworthy companion in improv...

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Arlen Ness Clear Tear Air Cleaner Assembly. Gold – 1991–2022 XL Sportster

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Arlen Ness Clear Tear Air Cleaner Assembly. Gold – 1991–2022 XL Sportster Gold anodized. The teardrop is a timeless design but this Clear Tear boos...

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Arlen Ness Clear Tear Air Cleaner Assembly. Gold – CV Carb: 1999–2006 Twin Cam; Delphi…

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Arlen Ness Clear Tear Air Cleaner Assembly. Gold – CV Carb: 1999–2006 Twin Cam; Delphi… Gold anodized. The teardrop is a timeless design but this C...

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Arlen Ness Clear Tear Air Cleaner Assembly. Gold – 2016–2017 Softail; 2017 FXDLS; 2008–2016…

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Arlen Ness Clear Tear Air Cleaner Assembly. Gold – 2016–2017 Softail; 2017 FXDLS; 2008–2016… Gold anodized. The teardrop is a timeless design but t...

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Arlen Ness Inverted Air Cleaner Kit ''10-Gauge''. All Black – 1991–2022 XL Sportster

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Arlen Ness Inverted Air Cleaner Kit ''10-Gauge''. All Black – 1991–2022 XL Sportster - All black anodized finish - Inverted top plate with pleated ...

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Colony Gas Tank Mount Kit. Chrome – 1979–1981 XLCH; XL Sportster

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Colony Gas Tank Mount Kit. Chrome – 1979–1981 XLCH; XL Sportster Chrome plated. Reproduction of the fuel tank mount kit; including 4723; 4725 bolts...

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