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Motorcycle Storehouse - Engine & Performance

Browse Motorcycle Storehouse engine & performance products.

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£17.18
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MCS CV Carb Top Cover. Chrome – 1990–2006 Big Twin; 1988–2006 XL…

Low stock

Description Chrome finish. Smooth top. OEM replacement reference 27040-88 and 27261-96. Fitment 90-06 Big Twin; 88-06 XL Sportster (NU); Customs wi...

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£17.18
£17.18 - £17.18
£17.18
£16.75
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£15.25
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£12.48
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£12.48

MCS Exhaust Tie Wraps 8" Long Black Stainless – Up to 2" Diameter Exhaust Pipes

In stock

Description Low profile 304 stainless steel cable-ties to secure exhaust wrap ends. 7.9mm wide. 8" long is okay for up to 2" diameter pipes. Fitmen...

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£15.25
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£15.25
£12.48
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£32.61 - £32.61
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£32.91
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MCS 57-85 XL Tappet Adjusting Screw Kit – 1957–1985 XL Sportster

Low stock

Description With 5/16" ball-end. 9/32"-32 threaded. Fits OEM 18508-52B and any other adjustable tappets with 9/32"-32 threads. Repl. 18554-57. Note...

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£32.61 - £32.61
£32.61
£32.91
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£32.91
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£26.95
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£26.95
£20.10
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£20.10

MCS Exhaust Insulating Wrap. 2" Wide Black

Low stock

Description Fiberglass exhaust wrap sold in 50ft. (15 meter) long rolls of 1.5mm thick material. Withstands heat up to 1200 °F (649 °C) continues; ...

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£26.95
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£26.95
£20.10
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£20.10
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£30.78 - £30.78
£30.78
£31.18
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£31.18

MCS Lock Nuts, for Tappet Adjuster Screw – 1915–1985 All H-D

Low stock

Description 9/32"-32 threaded. Fits all tappets that take 9/32-32 threaded adjusting screws. Replaces OEM 18570-38. Note: For adjusting screws see ...

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£30.78 - £30.78
£30.78
£31.18
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£31.18
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£83.39
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£83.39
£78.65
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£78.65

MCS Breather Style Air Cleaner Assembly, Oval. Chrome – 1990–2017 Big Twin; 1988–2022 XL…

Low stock

Description Classic steel mesh air cleaner for that authentic high performance look. Dimensions approx.: 7" (17.8cm) wide x 4-1/2" (11.5cm) high x ...

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£83.39
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£83.39
£78.65
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£78.65
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£52.56
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£52.56
£44.91
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£44.91

MCS Monster-Show Petcock, Hex Body. Down Outlet – 1966–1974 Big Twin; 1957–1974 Sportster…

Low stock

Description Chrome; down outlet; For 1/4" (6.4mm) fuel hose; with filter & reserve; 3/8 NPT threaded. Why not have a custom petcock that looks ...

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£52.56
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£52.56
£44.91
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£44.91
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£23.68 - £23.68
£23.68
£25.15
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£25.15

MCS Petcock, Early Custom Style, Down – 1957–1974 XL Sportster; 1966–1974 FL; FX…

Out of stock

Description Chrome; down outlet; 1/4" (6.35mm) fuel hose; with filter & reserve; 3/8" NPT threaded Fitment 57-74 XL Sportster; 66-74 FL; FX (NU...

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£23.68 - £23.68
£23.68
£25.15
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£161.41
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£154.33
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MCS 95-03 Kingsize Sportster Gas Tank, 3.1 Gallon – 1995–2003 XL Sportster Fits 1993–1994 XL…

Low stock

Description Fuel tank with OEM styling but wider to hold more fuel than the stock peanut tank. Left side 22mm petcock (not included). Compatible wi...

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£161.41
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£154.33
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£90.17
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£90.17

MCS Oil Line & Fitting Kit, Braided Steel – Universal

Low stock

Description Includes 6 fittings with 1/8" NPT thread to fit oil pump and oil tank. Incl. re-useable compression fittings to install oil line. Incl....

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£85.88 - £85.88
£85.88
£90.17
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£90.17
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£29.65
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£28.95
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MCS Quick Change Float Bowl Screw Kit – S&S Super B/D Carburetor

Low stock

Description Fits S&S Super B and D carbs. Used in racing; or other applications to remove the floatbowl. Gices fast access to float and jets wi...

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£29.65
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£28.95
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£39.83
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MCS Rubber, Muffler Hanger – 1984–1986 FXR

Low stock

Description OEM style replacement. Fitment 84-86 FXR (NU) Product Details Brand: MCS Category: EXHAUST > EXHAUST MOUNT PARTS Unit: 1 Produc...

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£39.83
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£39.44
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£9.25
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MCS Auto-Just Rocker Arm Tension Kit – 1966–1984 Shovelhead

Low stock

Description Once installed the pressure of the wave springs will remove any excessive lateral play; keeping rocker arms in place and reducing valve...

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£9.25
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£8.28
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£10.93
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£9.77
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MCS Muffler P-Clamp 1-3/4". Black – Universal

Low stock

Description Black painted universal steel P-clamp. 1-3/4" (4.4cm) inside diameter. Offset and with long mount strip. Fitment Universal Product Deta...

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£10.93
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£10.93
£9.77
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£165.68
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£165.68
£156.26
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£156.26

MCS Custom XL Sportster Frisco Style Gas Tank. 1.6 Gallon – Universal

In stock

Description A Frisco style chopper tank; but not your average run of the mill fuel tank. Even with this low tunnel it will still just carry 1.6 gal...

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£165.68
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£156.26
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£156.26
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£35.67 - £35.67
£35.67
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MCS Flush-Mount Mounting Bracket Set for 516509/516579 – 516509/516579 Fuel Tanks

Low stock

Description Optional mount bracket set for 516509/516579 Stretched Fat Billy and Stretched Eddy gas tank. Enables a flush mount to a custom frame. ...

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£37.20
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£37.20

MCS Replacement 1200cc B.t. Cast Piston. Std – 41-E78 1200cc/74" Knuckle; Pan; Shovel

Low stock

Description Standard 8:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. Note: Piston rings must b...

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£37.20 - £37.20
£37.20
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£37.20
Sold out
£21.59 - £21.59
£21.59
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£21.59

MCS Shovel Rocker Box Oil Line Kit. Braided Stainless – 1966–1984 Shovelhead

Out of stock

Description With custom braided stainless steel oil lines. Complete kit with seals and fittings. Fitment 66-84 Shovelhead (NU) Product Details Br...

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£21.59 - £21.59
£21.59
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Sold out
£7.94 - £7.94
£7.94
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MCS Adapter Oil Gauge Fitting, 45 Degrees. 1/8" Npt. Chrome – 1938–1999 Big Twin

Low stock

Description 1/8 NPT male to 1/8 NPT female threaded. Used as 45° adapter to give the rider a better viewing angle on the oil gauge while riding. Us...

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£7.94 - £7.94
£7.94
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£10.40
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£10.40

MCS Rocker Arm Shim Set Shovel .015" – 1966–1984 Shovelhead

Low stock

Description Rocker arm shim set Shovel .015" Fitment 66-84 Shovelhead (NU) Product Details Brand: MCS Category: MOTOR PARTS > ROCKER SHAFT SH...

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£10.40 - £10.40
£10.40
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£30.85
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£30.85

MCS Gas Cap Vented with Lock, Chrome – 1996–2018 H-D

Low stock

Description Chrome; vented; right side; right hand threaded. Includes 2 keys. Gas caps come with key hole cover. Fitment 96-18 H-D (NU) Product Det...

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£30.85 - £30.85
£30.85
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£164.01
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£164.01

MCS Flatside Gas Tank, 5 Gallon – 1984–1999 Softail; 1985–1986 Fxwg

Low stock

Description Stock style replacement gas tanks for 84-99 Softail; 85-86 FXWG models and custom frames that have the flatside mounting pattern. For u...

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£164.01 - £164.01
£164.01
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£164.01
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£11.53 - £11.53
£11.53
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£11.53

MCS Intake Clamps, Band Type – L1978–1984 Big Twin; L1978–1985 XL…

Out of stock

Description Philips screw; stainless Fitment L78-84 Big Twin; L78-85 XL Sportster (NU) Product Details Brand: MCS Category: INTAKE > INTAKE C...

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£11.53 - £11.53
£11.53
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£36.61 - £36.61
£36.61
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£36.61

MCS Evo Big Twin Tappet Block Cover Set. Chrome – 1984–1999 Evo Big Twin

In stock

Description Chrome plated stamped steel covers. Fits over the existing tappet guides to improve looks. Installation does not require disassembling ...

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£36.61 - £36.61
£36.61
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