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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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£793.47 - £793.47
£793.47
£842.61
£842.61 - £842.61
£842.61

Paughco Independent Dual Head Pipes. Chrome – 1948–1964 Panhead

Out of stock

Paughco Independent Dual Head Pipes. Chrome – 1948–1964 Panhead S-pipe. Stock 1-3/4" diameter crossover headpipes that are not connected to each ot...

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£793.47 - £793.47
£793.47
£842.61
£842.61 - £842.61
£842.61
Sold out
£88.02 - £88.02
£88.02
£88.70
£88.70 - £88.70
£88.70

James Gaskets Rocker Cover Gasket Kit. Evo XL. RCM – 2007–2022 XL Sportster

Only 4 left!

James Gaskets Rocker Cover Gasket Kit. Evo XL. RCM – 2007–2022 XL Sportster Includes RCM (Rubber Coated Metal with silicone bead) rocker box base g...

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£88.02 - £88.02
£88.02
£88.70
£88.70 - £88.70
£88.70
£88.02 - £88.02
£88.02
£88.70
£88.70 - £88.70
£88.70

James Gaskets Rocker Cover Gasket Kit. Evo XL. RCM – 2004–2006 XL Sportster

Only 3 left!

James Gaskets Rocker Cover Gasket Kit. Evo XL. RCM – 2004–2006 XL Sportster Includes RCM (Rubber Coated Metal with silicone bead) rocker box base g...

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£88.02 - £88.02
£88.02
£88.70
£88.70 - £88.70
£88.70
£83.61 - £83.61
£83.61
£84.25
£84.25 - £84.25
£84.25

James Gaskets Rocker Cover Gasket Kit. Evo B.T. RCM – 1992–1999 Evo Big Twin

Only 3 left!

James Gaskets Rocker Cover Gasket Kit. Evo B.T. RCM – 1992–1999 Evo Big Twin Includes RCM (Rubber Coated Metal) rocker base gaskets; rubber rocker ...

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£83.61 - £83.61
£83.61
£84.25
£84.25 - £84.25
£84.25
£83.61 - £83.61
£83.61
£84.25
£84.25 - £84.25
£84.25

James Gaskets Rocker Cover Gasket Kit. Evo B.T. RCM – 1984–1991 Evo Big Twin

Only 3 left!

James Gaskets Rocker Cover Gasket Kit. Evo B.T. RCM – 1984–1991 Evo Big Twin Includes RCM (Rubber Coated Metal) rocker base gaskets; rubber rocker ...

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£83.61 - £83.61
£83.61
£84.25
£84.25 - £84.25
£84.25
£66.08 - £66.08
£66.08
£66.58
£66.58 - £66.58
£66.58

James Gaskets Rocker Cover Gasket Kit. Evo XL – 1991–2003 XL Sportster

Only 4 left!

James Gaskets Rocker Cover Gasket Kit. Evo XL – 1991–2003 XL Sportster Includes silicone beaded paper rocker box base gaskets; rubber rocker cover ...

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£66.08 - £66.08
£66.08
£66.58
£66.58 - £66.58
£66.58
£66.03 - £66.03
£66.03
£66.54
£66.54 - £66.54
£66.54

James Gaskets Rocker Cover Gasket Kit. Evo XL – 1986–1990 Evo XL Sportster

Only 3 left!

James Gaskets Rocker Cover Gasket Kit. Evo XL – 1986–1990 Evo XL Sportster Includes silicone beaded paper rocker box base gaskets; rubber rocker co...

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£66.03 - £66.03
£66.03
£66.54
£66.54 - £66.54
£66.54
£47.68 - £47.68
£47.68
£48.04
£48.04 - £48.04
£48.04

James Gaskets Rocker Cover Gasket Kit. Evo B.T – 1984–1991 Evo Big Twin

Only 4 left!

James Gaskets Rocker Cover Gasket Kit. Evo B.T – 1984–1991 Evo Big Twin Includes silicone beaded paper rocker cover base gaskets; rubber rocker gas...

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£47.68 - £47.68
£47.68
£48.04
£48.04 - £48.04
£48.04
Sold out
£929.32
£929.32 - £929.32
£929.32
£910.73
£910.73 - £910.73
£910.73

Paughco Side by Side Upswept Fishtails Exhaust. Black – 2000–2017 Softail

Out of stock

Paughco Side by Side Upswept Fishtails Exhaust. Black – 2000–2017 Softail Incl. 18mm & 12mm O2 sensor bungs and block-off plugs. From the side ...

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£929.32
£929.32 - £929.32
£929.32
£910.73
£910.73 - £910.73
£910.73
Sold out
Sold out
£35.78
£35.78 - £35.78
£35.78
£32.93
£32.93 - £32.93
£32.93

Gardner-Westcott Oil Pump Line Fitting Kit. Brass – 1968–1984 Shovelhead

Out of stock

Gardner-Westcott Oil Pump Line Fitting Kit. Brass – 1968–1984 Shovelhead Solid brass. With oil pump nipples. Incl. Street elbow 90° 1/8 pipe (2); H...

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£35.78
£35.78 - £35.78
£35.78
£32.93
£32.93 - £32.93
£32.93
Sold out
Sold out
£49.80
£49.80 - £49.80
£49.80
£45.83
£45.83 - £45.83
£45.83

Gardner-Westcott Oil Pump Line Fitting Kit. Brass – 1970–1984 Big Twin with Dry or Wet…

Out of stock

Gardner-Westcott Oil Pump Line Fitting Kit. Brass – 1970–1984 Big Twin with Dry or Wet… Solid brass. With fittings for oil pump & crankcase ven...

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£49.80
£49.80 - £49.80
£49.80
£45.83
£45.83 - £45.83
£45.83
Sold out
Sold out
£217.69
£217.69 - £217.69
£217.69
£214.66
£214.66 - £214.66
£214.66

Gardner-Westcott Oil Pump Line Fitting Kit. Brass – 1970–1981 Shovelhead

Out of stock

Gardner-Westcott Oil Pump Line Fitting Kit. Brass – 1970–1981 Shovelhead Solid brass. Full set with fittings for oil pump; top-end oil lines; oil t...

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£217.69
£217.69 - £217.69
£217.69
£214.66
£214.66 - £214.66
£214.66
Sold out
£929.32 - £929.32
£929.32
£986.88
£986.88 - £986.88
£986.88

Paughco Side by Side Upswept Fishtails Exhaust. Chrome – 2000–2017 Softail

Only 2 left!

Paughco Side by Side Upswept Fishtails Exhaust. Chrome – 2000–2017 Softail Incl. 18mm & 12mm O2 sensor bungs and block-off plugs. From the side...

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£929.32 - £929.32
£929.32
£986.88
£986.88 - £986.88
£986.88
£48.88 - £48.88
£48.88
£49.26
£49.26 - £49.26
£49.26

James Gaskets Gasket Lower Rocker Cover. Rubber – 1991–2003 XL Sportster

Only 3 left!

James Gaskets Gasket Lower Rocker Cover. Rubber – 1991–2003 XL Sportster OEM replacement reference 17353-89. Fitment 91-03 XL Sportster (NU) Produc...

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£48.88 - £48.88
£48.88
£49.26
£49.26 - £49.26
£49.26
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£73.97
£73.97 - £73.97
£73.97
£63.19
£63.19 - £63.19
£63.19

MCS Air Cleaner Adapter Bracket Kit. Chrome – 1999–2017 Twin Cam with CV or Delphi Inj

Only 3 left!

MCS Air Cleaner Adapter Bracket Kit. Chrome – 1999–2017 Twin Cam with CV or Delphi Inj Includes air cleaner adapter bracket; breather bolts; hose; ...

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£73.97
£73.97 - £73.97
£73.97
£63.19
£63.19 - £63.19
£63.19
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£68.16
£68.16 - £68.16
£68.16
£58.24
£58.24 - £58.24
£58.24

MCS Air Cleaner Adapter Bracket Kit. Chrome – 1993–1999 Evo Big Twin

Only 3 left!

MCS Air Cleaner Adapter Bracket Kit. Chrome – 1993–1999 Evo Big Twin Includes air cleaner adapter bracket; breather bolts; hose; crankcase filter a...

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£68.16
£68.16 - £68.16
£68.16
£58.24
£58.24 - £58.24
£58.24
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Save 7% Save %
£34.77
£34.77 - £34.77
£34.77
£32.28
£32.28 - £32.28
£32.28

MCS Air Cleaner Adapter Bracket. Chrome – 1990–2017 Evo Big Twin and Twin Cam with…

Only 2 left!

MCS Air Cleaner Adapter Bracket. Chrome – 1990–2017 Evo Big Twin and Twin Cam with… Chrome plated steel. For Keihin CV (Constant Vacuum) carburetor...

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£34.77
£34.77 - £34.77
£34.77
£32.28
£32.28 - £32.28
£32.28
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Save 1% Save %
£91.83
£91.83 - £91.83
£91.83
£90.54
£90.54 - £90.54
£90.54

Jims Oil Pump Drive Shaft, +.005" Od – 1970–1999 Big Twin

Only 2 left!

Jims Oil Pump Drive Shaft, +.005" Od – 1970–1999 Big Twin ÿ Fitment 70-99 Big Twin (NU) (Excl. TC) Product Details Brand: Jims Category: MOTOR P...

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£91.83
£91.83 - £91.83
£91.83
£90.54
£90.54 - £90.54
£90.54
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Save 1% Save %
£93.27
£93.27 - £93.27
£93.27
£91.96
£91.96 - £91.96
£91.96

Jims Oil Pump Drive Shaft, +.005" Od – 1936–1967 Big Twin

Only 2 left!

Jims Oil Pump Drive Shaft, +.005" Od – 1936–1967 Big Twin Jims oil pump drive shaft, +.005" od Fitment 36-67 Big Twin (NU) Product Details Brand:...

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£93.27
£93.27 - £93.27
£93.27
£91.96
£91.96 - £91.96
£91.96
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Save 1% Save %
£45.11
£45.11 - £45.11
£45.11
£44.47
£44.47 - £44.47
£44.47

Jims Oil Pump Drive Shaft – 1970–1999 Big Twin

Only 2 left!

Jims Oil Pump Drive Shaft – 1970–1999 Big Twin Jims, oil pump drive shaft Fitment 70-99 Big Twin (NU) (Excl. TC) Product Details Brand: Jims Cat...

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£45.11
£45.11 - £45.11
£45.11
£44.47
£44.47 - £44.47
£44.47
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Save 1% Save %
£52.21
£52.21 - £52.21
£52.21
£51.47
£51.47 - £51.47
£51.47

Jims Oil Pump Drive Shaft – 1936–1967 Big Twin

Only 2 left!

Jims Oil Pump Drive Shaft – 1936–1967 Big Twin Jims oil pump drive shaft Fitment 36-67 Big Twin (NU) Product Details Brand: Jims Category: MOTOR...

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£52.21
£52.21 - £52.21
£52.21
£51.47
£51.47 - £51.47
£51.47
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Save 5% Save %
£79.82
£79.82 - £79.82
£79.82
£76.00
£76.00 - £76.00
£76.00

MCS 41-99 Connecting Rod Roller Retainer Set – 1936–1999 Big Twin

Only 4 left!

MCS 41-99 Connecting Rod Roller Retainer Set – 1936–1999 Big Twin Aluminum retainers. 36-86 B.T. style. Will not fit 00-up Big Twin with pressed-in...

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£79.82
£79.82 - £79.82
£79.82
£76.00
£76.00 - £76.00
£76.00
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£150.44
£150.44 - £150.44
£150.44
£130.92
£130.92 - £130.92
£130.92

MCS Shovel Tappet Block Set Front/Rear. Chrome – 1953–1984 Big Twin. 53-E76 Big Twin…

Only 3 left!

MCS Shovel Tappet Block Set Front/Rear. Chrome – 1953–1984 Big Twin. 53-E76 Big Twin… Chrome plated steel. Reproduction part. Will fit all 53-84 Bi...

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£150.44
£150.44 - £150.44
£150.44
£130.92
£130.92 - £130.92
£130.92
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Save 12% Save %
£126.83
£126.83 - £126.83
£126.83
£112.02
£112.02 - £112.02
£112.02

MCS Shovel Tappet Block Set Front/Rear. Black – 1953–1984 Big Twin. 53-E76 Big Twin…

Only 3 left!

MCS Shovel Tappet Block Set Front/Rear. Black – 1953–1984 Big Twin. 53-E76 Big Twin… Black painted steel. Reproduction part. Will fit all 53-84 Big...

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£126.83
£126.83 - £126.83
£126.83
£112.02
£112.02 - £112.02
£112.02
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