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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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£130.57
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£130.57
£112.19
£112.19 - £112.19
£112.19

MCS Braided Hose 5/16" (8mm). Black Nylon

Only 3 left!

MCS Braided Hose 5/16" (8mm). Black Nylon Braided hose with inconspicuous but stylish black nylon. For universal fuel and oil hose applications. Gi...

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£130.57
£130.57 - £130.57
£130.57
£112.19
£112.19 - £112.19
£112.19
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£125.26
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£125.26
£107.63
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£107.63

MCS Braided Hose 1/4" (6mm). Black Nylon

Only 3 left!

MCS Braided Hose 1/4" (6mm). Black Nylon Braided hose with inconspicuous but stylish black nylon. For universal fuel and oil hose applications. Giv...

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£125.26
£125.26 - £125.26
£125.26
£107.63
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£107.63
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£10.63 - £10.63
£10.63
£11.14
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£11.14

MCS Hose Separator. Polished

Only 1 left!

MCS Hose Separator. Polished Aluminum. For use with 5/16" & 3/8" oil and fuel hoses. Eyelet inside diameter is 1.5cm. Product Details Brand: ...

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£10.63 - £10.63
£10.63
£11.14
£11.14 - £11.14
£11.14
£18.18 - £18.18
£18.18
£20.38
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£20.38

MCS Copper Seal Washer, 5/8 X 13/16 X 1/32 – 1954–1982 XL Sportster; 1938–1983 FL…

Only 3 left!

MCS Copper Seal Washer, 5/8 X 13/16 X 1/32 – 1954–1982 XL Sportster; 1938–1983 FL… Oil tank drain plug. OEM replacement reference 6700B. Fitment 54...

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£18.18 - £18.18
£18.18
£20.38
£20.38 - £20.38
£20.38
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£29.50
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£29.50
£27.71
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£27.71

CV Performance Holder Needle Jet. Keihin CV Carb – 1990–2006 Big Twin; 1988–2006 XL…

Only 1 left!

CV Performance Holder Needle Jet. Keihin CV Carb – 1990–2006 Big Twin; 1988–2006 XL… Emulsion tube. Optimizes air / fuel mixture. OEM replacement r...

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£29.50
£29.50 - £29.50
£29.50
£27.71
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£27.71
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£46.69
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£46.69
£43.85
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£43.85

CV Performance Basic Tuners Kit for CV Carburetors – 1990–1999 Evo Big Twin

Out of stock

CV Performance Basic Tuners Kit for CV Carburetors – 1990–1999 Evo Big Twin Basic recalibration kit for the CV carburetor. Includes a custom design...

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£46.69
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£46.69
£43.85
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£43.85
Sold out
Sold out
£130.69
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£130.69
£126.17
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£126.17

CV Performance Deluxe Tuners Kit for CV Carburetors – 1990–1999 Evo Big Twin

Out of stock

CV Performance Deluxe Tuners Kit for CV Carburetors – 1990–1999 Evo Big Twin Recalibration kits for CV carburetors. The most complete kit available...

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£130.69
£130.69 - £130.69
£130.69
£126.17
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£126.17
Sold out
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£97.34
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£97.34
£92.68
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£92.68

CV Performance Tuners Kit for CV Carburetors – 1990–1999 Evo Big Twin

Only 2 left!

CV Performance Tuners Kit for CV Carburetors – 1990–1999 Evo Big Twin Same as 917047 Deluxe kit; but does not include the EZ-Just idle mixture scre...

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£97.34
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£97.34
£92.68
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£92.68
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£9.84
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£9.84
£8.77
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£8.77

MCS Softail Oil Line Retainers – 2000–2017 Softail

Only 4 left!

MCS Softail Oil Line Retainers – 2000–2017 Softail As used with stock Softail models. Connects oil lines to engine. OEM replacement reference 63632...

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£9.84
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£9.84
£8.77
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£8.77
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£38.08
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£38.08
£36.25
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£36.25

MCS Breather Pipe Assembly, Black – 1958–1964 Panhead

Only 2 left!

MCS Breather Pipe Assembly, Black – 1958–1964 Panhead OEM style reproduction. Fits between crankcase and primary. Note: See 915425 (OEM 24918-58) f...

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£38.08
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£38.08
£36.25
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£36.25
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£27.16
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£27.16
£25.86
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£25.86

MCS Breather Pipe Assembly, Black – 1948–1957 & 1964 61"/74" Panhead

Only 3 left!

MCS Breather Pipe Assembly, Black – 1948–1957 & 1964 61"/74" Panhead OEM style reproduction. Fits between crankcase and primary. Fitment 48-57 ...

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£27.16
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£27.16
£25.86
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£25.86
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£22.58
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£22.58
£20.38
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£20.38

MCS Fuel Line Kit 1/4", Braided – Universal for All Models with 1/4" Hose

Only 3 left!

MCS Fuel Line Kit 1/4", Braided – Universal for All Models with 1/4" Hose Universal kit for petcocks that take 1/4" (6mm) hose. Includes 16" (40cm)...

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£22.58
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£22.58
£20.38
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£20.38
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£10.59
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£10.59
£9.75
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£9.75

Pingel Vacuum Line Caps

Only 3 left!

Pingel Vacuum Line Caps Used to plug vacuum fittings when no longer in use. Product Details Brand: Pingel Category: INTAKE > INTAKE MISC Uni...

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£10.59
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£10.59
£9.75
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£9.75
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£12.83
£13.45
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£13.45

MCS Hose Separator. Red

Only 1 left!

MCS Hose Separator. Red Aluminum. For use with 5/16" & 3/8" oil and fuel hoses. Eyelet inside diameter is 1.5cm. Product Details Brand: MCS ...

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£12.83 - £12.83
£12.83
£13.45
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£13.45
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£9.05
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£9.05
£8.61
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£8.61

MCS Stud, Idler Gear – 1954–1978 K; XL Sportster (00 CAT 97=USA…

Only 2 left!

MCS Stud, Idler Gear – 1954–1978 K; XL Sportster (00 CAT 97=USA… 54-78 K; XL(NU) (00 CAT 97=USA made) Fitment 54-78 K; XL Sportster (NU) (00 CAT 97...

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£9.05
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£9.05
£8.61
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£8.61
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£48.17
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£48.17
£44.73
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£44.73

MCS PCV Crankcase Breather Cannister – Universal

Only 1 left!

MCS PCV Crankcase Breather Cannister – Universal Chrome. Positive Crankcase Ventilation; a universal chrome plated steel crankvent system for use o...

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£48.17
£48.17 - £48.17
£48.17
£44.73
£44.73 - £44.73
£44.73
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£36.15
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£36.15
£33.57
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£33.57

MCS Econ-o-fit Hose Clamps. 5/16" to 3/8". Black

Only 1 left!

MCS Econ-o-fit Hose Clamps. 5/16" to 3/8". Black For 5/16 to 3/8" inside diameter fuel/oil hose. Aircraft style hose clamps; at a fraction of the p...

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£36.15
£36.15 - £36.15
£36.15
£33.57
£33.57 - £33.57
£33.57
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£36.15
£36.15 - £36.15
£36.15
£33.57
£33.57 - £33.57
£33.57

MCS Econ-o-fit Hose Clamps. 1/4". Black

Only 3 left!

MCS Econ-o-fit Hose Clamps. 1/4". Black For 1/4" ID fuel hose. Aircraft style hose clamps; at a fraction of the price. Can be used with both rubber...

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£36.15
£36.15 - £36.15
£36.15
£33.57
£33.57 - £33.57
£33.57
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£17.91
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£17.91
£17.03
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£17.03

ABA 12mm for 1/4" Hose. Zinc Plated

Only 3 left!

ABA 12mm for 1/4" Hose. Zinc Plated 12mm for 1/4" hose. Zinc plated. No nonsense ABA clamps; from Sweden. Easy to install; loosen and gives superb ...

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£17.91
£17.91 - £17.91
£17.91
£17.03
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£17.03
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£37.23
£37.23 - £37.23
£37.23
£34.57
£34.57 - £34.57
£34.57

MCS Econ-o-fit Hose Clamps. 5/16" to 3/8". Chrome

Only 4 left!

MCS Econ-o-fit Hose Clamps. 5/16" to 3/8". Chrome For 5/16 to 3/8" inside diameter fuel/oil hose. Aircraft style hose clamps; at a fraction of the ...

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£37.23
£37.23 - £37.23
£37.23
£34.57
£34.57 - £34.57
£34.57
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£39.39
£39.39 - £39.39
£39.39
£36.58
£36.58 - £36.58
£36.58

MCS Smooth Hose Clamps, 1/4". Chrome Grooved

Only 3 left!

MCS Smooth Hose Clamps, 1/4". Chrome Grooved For 1/4" inside diameter oil hose. Can be used with both rubber as braided stainless hose. Complete wi...

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£39.39
£39.39 - £39.39
£39.39
£36.58
£36.58 - £36.58
£36.58
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£41.60
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£41.60
£38.62
£38.62 - £38.62
£38.62

MCS Smooth Hose Clamps, 3/8". Chrome Grooved

Only 3 left!

MCS Smooth Hose Clamps, 3/8". Chrome Grooved For 3/8" inside diameter oil hose. Can be used with both rubber as braided stainless hose. Complete wi...

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£41.60
£41.60 - £41.60
£41.60
£38.62
£38.62 - £38.62
£38.62
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£38.69
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£38.69
£35.90
£35.90 - £35.90
£35.90

MCS Smooth Hose Clamps, 3/8". Chrome Slotted

Only 4 left!

MCS Smooth Hose Clamps, 3/8". Chrome Slotted For 3/8" inside diameter oil hose. Can be used with both rubber as braided stainless hose. Complete wi...

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£38.69
£38.69 - £38.69
£38.69
£35.90
£35.90 - £35.90
£35.90
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£32.46
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£32.46
£30.13
£30.13 - £30.13
£30.13

MCS Econ-o-fit Hose Clamps. 1/4". Chrome

Only 3 left!

MCS Econ-o-fit Hose Clamps. 1/4". Chrome For 1/4" ID fuel hose. Aircraft style hose clamps; at a fraction of the price. Can be used with both rubbe...

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£32.46
£32.46 - £32.46
£32.46
£30.13
£30.13 - £30.13
£30.13
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