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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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£217.44 - £217.44
£217.44
£222.36
£222.36 - £222.36
£222.36

James Gaskets Gasket & Seal Board. 04-22 XL Sportster, XR1200 – 2004–2022 XL Sportster; 2008–2012 XR1200

Only 2 left!

James Gaskets Gasket & Seal Board. 04-22 XL Sportster, XR1200 – 2004–2022 XL Sportster; 2008–2012 XR1200 Allows you to get a grip on your seali...

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£217.44 - £217.44
£217.44
£222.36
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£222.36
£217.44 - £217.44
£217.44
£222.36
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£222.36

James Gaskets Gasket & Seal Board. Transmission – 1936–2017 Transmissions

Only 2 left!

James Gaskets Gasket & Seal Board. Transmission – 1936–2017 Transmissions Allows you to get a grip on your sealing department and save time; mo...

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£217.44 - £217.44
£217.44
£222.36
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£222.36
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£36.48
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£36.48
£36.04
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£36.04

Colony Lower Motor Mount Kit Zinc – 1932–1973 45" SV

Out of stock

Colony Lower Motor Mount Kit Zinc – 1932–1973 45" SV Colony lower motor mount kit zinc Fitment 32-73 45" SV (NU) Product Details Brand: Colony C...

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£36.48
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£36.48
£36.04
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£36.04
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£20.73
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£20.73
£18.71
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£18.71

MCS Nut, Sprocket Shaft Extension. 1-3/8" (35mm) – 1991–2006 Softail; 1985–1994 FXR…

Only 3 left!

MCS Nut, Sprocket Shaft Extension. 1-3/8" (35mm) – 1991–2006 Softail; 1985–1994 FXR… Nut, sprocket shaft extension. 1-3/8" (35mm) Fitment 91-06 Sof...

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£20.73
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£20.73
£18.71
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£18.71
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£43.46
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£43.46
£39.99
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£39.99

MCS Sprocket Shaft Extension, 1-3/8"(35mm) – 1991–2006 Softail; 1985–1994 FXR…

Only 2 left!

MCS Sprocket Shaft Extension, 1-3/8"(35mm) – 1991–2006 Softail; 1985–1994 FXR… Sprocket shaft extension, 1-3/8"(35mm) Fitment 91-06 Softail; 85-94 ...

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£43.46
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£43.46
£39.99
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£39.99
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£64.29
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£64.29
£54.93
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£54.93

MCS Inner & Outer Cam Chain Tensioner Kit – 2007–2017 Softail; 2006–2017 Dyna…

Only 3 left!

MCS Inner & Outer Cam Chain Tensioner Kit – 2007–2017 Softail; 2006–2017 Dyna… Includes inner & outer hydraulic cam chain tensioners. OEM s...

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£64.29
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£64.29
£54.93
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£11.40
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£13.05

MCS Oil Tank Drain Plug. Non-threaded – 1990–1999 Softail

Only 3 left!

MCS Oil Tank Drain Plug. Non-threaded – 1990–1999 Softail Zinc plated. Un-threaded plug. Used as a plug to insert into the oil hose. OEM replacemen...

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£11.40 - £11.40
£11.40
£13.05
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£11.22
£11.76
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£11.76

MCS Oil Drain Plug. Magnetic – Oil Tank: 2000–2017 Softail(1).…

Only 1 left!

MCS Oil Drain Plug. Magnetic – Oil Tank: 2000–2017 Softail(1).… Zinc plated. OEM style. Allen head (hex socket head). 1/2"-20 threaded. OEM replace...

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Cobra 4" Race Pro Slip-on Mufflers. Black – 2017–2026 Touring. Requires Disabling…

Only 2 left!

Cobra 4" Race Pro Slip-on Mufflers. Black – 2017–2026 Touring. Requires Disabling… Matte black with gloss black muffler strap. Great flow & go....

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£1,131.24
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£1,115.51
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£1,057.14
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£1,042.44
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£1,042.44

Cobra 4" Race Pro Slip-on Mufflers. Chrome – 2017–2026 Touring. Requires Disabling…

Only 2 left!

Cobra 4" Race Pro Slip-on Mufflers. Chrome – 2017–2026 Touring. Requires Disabling… Chrome with gloss black muffler strap. Great flow & go. Int...

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£1,057.14
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£1,057.14
£1,042.44
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£1,042.44
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£634.52
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£634.52
£625.70
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£625.70

Cobra 909 Twins 4" Slip-on Mufflers. Chrome – 2017–2026 Touring. Requires Disabling…

Only 2 left!

Cobra 909 Twins 4" Slip-on Mufflers. Chrome – 2017–2026 Touring. Requires Disabling… Chrome. Manufactured with a rolled inner tip; matched to an in...

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£634.52
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£625.70
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£625.70
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£1,131.24
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£1,131.24
£1,115.51
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£1,115.51

Cobra Powrflo 4-1/2" Slip on Mufflers. Black – 2017–2026 Touring. Requires Disabling…

Only 2 left!

Cobra Powrflo 4-1/2" Slip on Mufflers. Black – 2017–2026 Touring. Requires Disabling… Satin black. A 4" muffler diameter which slowly tapers to 4 1...

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£1,131.24
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£1,131.24
£1,115.51
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£1,115.51
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£1,086.08
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£1,086.08
£1,070.97
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£1,070.97

Cobra Powrflo 4-1/2" Slip on Mufflers. Chrome – 2017–2026 Touring. Requires Disabling…

Only 2 left!

Cobra Powrflo 4-1/2" Slip on Mufflers. Chrome – 2017–2026 Touring. Requires Disabling… Chrome. A 4" muffler diameter which slowly tapers to 4 1/2" ...

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£1,086.08
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£1,086.08
£1,070.97
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£1,070.97
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£600.92
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£600.92
£592.57
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£592.57

Cobra NH Series 4" Slip-on Mufflers – 2017–2026 Touring. Requires Disabling…

Out of stock

Cobra NH Series 4" Slip-on Mufflers – 2017–2026 Touring. Requires Disabling… Black. Comes with a 4" diameter body that bells out to 4.5". These are...

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£600.92
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£600.92
£592.57
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£592.57
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£634.52
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£634.52
£625.70
£625.70 - £625.70
£625.70

Cobra NH Series 4" Slip-on Mufflers – 2017–2026 Touring. Requires Disabling…

Out of stock

Cobra NH Series 4" Slip-on Mufflers – 2017–2026 Touring. Requires Disabling… Chrome. Comes with a 4" diameter body that bells out to 4.5". These ar...

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£634.52
£634.52 - £634.52
£634.52
£625.70
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£625.70
Sold out
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£18.04
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£18.04
£16.26
£16.26 - £16.26
£16.26

MCS Muffler Short P-clamp 3-1/4". Stainless – 1958–1977 FL; 71-E75 FX with OEM 2-1…

Only 2 left!

MCS Muffler Short P-clamp 3-1/4". Stainless – 1958–1977 FL; 71-E75 FX with OEM 2-1… Stainless steel universal P-clamp. 3-1/4" (8.3cm) inside diamet...

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£18.04
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£18.04
£16.26
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£16.26
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£7.28
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£7.28
£6.93
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£6.93

James Gaskets Fuel Tank Check Valve O-ring – 1995–1999 FLT/Touring; FLHR FLT/Touring…

Only 3 left!

James Gaskets Fuel Tank Check Valve O-ring – 1995–1999 FLT/Touring; FLHR FLT/Touring… Used between fuel tank check valve and fuel line assembly wit...

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£7.28
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£7.28
£6.93
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£3.30
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£3.30

MCS Replacement Foam Air Filter Element, Oval – Universal

Only 3 left!

MCS Replacement Foam Air Filter Element, Oval – Universal Fits oval ''Breather Style'' air cleaners 509314; 509316; 509317; 509318 and similar air ...

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£3.26 - £3.26
£3.26
£3.30
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£3.30
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£9.89
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£9.89
£9.29
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£9.29

MCS Breather Tube Connector Only

Only 2 left!

MCS Breather Tube Connector Only Replacement connector only for 507961 breather tube & connector kit Product Details Brand: MCS Category: MO...

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£9.89
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£9.89
£9.29
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£34.92
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£34.43
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£34.43

MCS Sifton Style Breather Cannister & Connector Tube Kit – Evo Big Twin Models and Some SE Models…

Only 2 left!

MCS Sifton Style Breather Cannister & Connector Tube Kit – Evo Big Twin Models and Some SE Models… For head vent models. Breather tube canniste...

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£34.92
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£34.43
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£97.65
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£97.65
£88.09
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£88.09

MCS Dual Mini ''Power Filter'' Breather Kit – 1993–2024 Big Twin

Out of stock

MCS Dual Mini ''Power Filter'' Breather Kit – 1993–2024 Big Twin With threaded breather tubes; breather nippels and hardware. Incl. 1/2-13 (Evo) an...

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£97.65
£97.65 - £97.65
£97.65
£88.09
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£88.09
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£106.56
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£106.56
£98.23
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£98.23

MCS Dual Breather Kit, Long Canister – 1993–2025 Big Twin

Only 3 left!

MCS Dual Breather Kit, Long Canister – 1993–2025 Big Twin Chromed aluminum. Fits Evo; Twin Cam and M8 Big Twin models with head vents. Comes with t...

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£106.56
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£106.56
£98.23
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£98.23
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£186.79
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£186.79
£158.14
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£158.14

MCS 93-94 OEM Style Sportster Gas Tank, 2.4 Gallon – 1993–1994 XL Sportster Fits 1995–2003 XL…

Only 2 left!

MCS 93-94 OEM Style Sportster Gas Tank, 2.4 Gallon – 1993–1994 XL Sportster Fits 1995–2003 XL… Stock style replacement XL fuel tank. Right side 22m...

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£186.79
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£186.79
£158.14
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£158.14
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£132.79
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£132.79
£120.63
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£120.63

MCS Complete 86-90 XL Pushrod Cover Kit. Chrome – 1986–1990 XL Sportster

Out of stock

MCS Complete 86-90 XL Pushrod Cover Kit. Chrome – 1986–1990 XL Sportster Complete OEM reproduction style replacement pushrod cover kit with everyth...

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£132.79
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£132.79
£120.63
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£120.63
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