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Motorcycle Storehouse - Engine & Performance

Browse Motorcycle Storehouse engine & performance products.

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£16.37 - £16.37
£16.37
£16.37 - £16.37
£16.37

MCS Keihin CV Carburettor Rebuild Kit for Harley-Davidson 1990-2006 Big Twin; 1988-2006 XL Sportster. with OEM 40mm CV Carburettor

Available

Description Rebuild kit for all OEM Keihin CV (Constant Vacuum) carburetor variations as used on XL Sportster and Big Twin models. Replacement refe...

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£16.37 - £16.37
£16.37
£16.37 - £16.37
£16.37
£28.78 - £28.78
£28.78
£28.78 - £28.78
£28.78

MCS Petcock, Late OEM Style, Down Outlet for Harley-Davidson 1975-2006 Big Twin, XL Sportster(Excl. Inj. Models); Customs with 1975 Onwards Style Threaded Tanks

Available

Description Chrome; down outlet; 1/4" (6.35mm) fuel hose; with filter & reserve; 22mm thread with nut Fitment 75-06 Big Twin, XL Sportster (NU)...

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£28.78 - £28.78
£28.78
£28.78 - £28.78
£28.78
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£10.34 - £10.34
£10.34
£13.38
£13.38 - £13.38
£13.38

MCS Petcock Rebuild Kit for Harley-Davidson 1957-1998 Most Big Twin & XL Sportster Models

Currently Unavailable

Description Includes two filters; a Viton valve disk and an O-ring. Fitment57-98 most Big Twin & XL Sportster models (NU)Product Details Bran...

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£10.34 - £10.34
£10.34
£13.38
£13.38 - £13.38
£13.38
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£47.59 - £47.59
£47.59
£47.59 - £47.59
£47.59

MCS Steel Breather Valve. Std for Harley-Davidson Late 1977-1999 Big Twin (Excl. Twin Cam)

Available

Description OEM style replacement. FitmentL77-99 Big Twin (Excl. Twin Cam) (NU)Product Details Brand: MCS Category: MOTOR PARTS > BREATHER VA...

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£47.59 - £47.59
£47.59
£47.59 - £47.59
£47.59
£8.98 - £8.98
£8.98
£8.98 - £8.98
£8.98

MCS Rocker Shaft End Nut Set, Red Plastic Inserts for Harley-Davidson 1966-1984 Shovelhead; 1957-1985 XL Sportster

Available

Description Chrome plated. With red plastic inserts like stock. OEM reproduction. Used on the left side of the rocker box. 7/16-20 threaded. Repl. ...

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£8.98 - £8.98
£8.98
£8.98 - £8.98
£8.98
£20.20 - £20.20
£20.20
£20.20 - £20.20
£20.20

MCS Bendix Carburettor Rebuild Kit, Imported - 38 mm Bendix Carburetors - for Harley-Davidson Glide Police FL 1975 / Harley-Davidson Electra Glide FLHF 1975 & More Models

Available

Description Complete rebuild kit for Bendix carburetors. OEM replacement reference 27132-71; 27132-71T. Fitment38mm Bendix carburetorsProduct Detai...

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£20.20 - £20.20
£20.20
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£20.20
£11.07 - £11.07
£11.07
£12.00
£12.00 - £12.00
£12.00

MCS Spin-on Oil Filter. Chrome for Harley-Davidson 1999 Softail; 1999-2017 Twin Cam; 2017-2020 M8

Available

Description With 5-micron filtering media. OEM replacement reference 63798-99A. Note: This filter is no longer advised for M8 models as of 2020. Th...

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£11.07 - £11.07
£11.07
£12.00
£12.00 - £12.00
£12.00
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£11.13
£11.13 - £11.13
£11.13
£9.95
£9.95 - £9.95
£9.95

MCS Exhaust Stud & Nut Kit 84-Up for Harley-Davidson 1984-2026 Big Twin; 1986-2022 XL Sportster; 2008-2012 XR1200; 1987-2010 Buell XB Models

Available

Description 5/16-18 to 5/16-24 X 1-11/16" long. Zinc plated studs with chrome plated nuts. Mounts exhaust to cylinder heads. Note: Exhaust studs as...

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£11.13
£11.13 - £11.13
£11.13
£9.95
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£9.95
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£13.56 - £13.56
£13.56
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£13.56

MCS Sprocket Shaft Spacer for Harley-Davidson 1970-1999 Big Twin (Excl. Twin Cam)

Available

Description Note: Use 978321 JIMS or 979425 George's Garage tool to install the sprocket shaft seal correctly and without damage. Fitment70-99 Big ...

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£13.56 - £13.56
£13.56
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£13.56
£8.39 - £8.39
£8.39
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£8.39

MCS Bendix Carb Accelerator Rebuild Kit - 1971-1975 H-D with Bendix Carburettor

Available

Description Fits all Bendix carburetors. OEM replacement reference 27762-71A. Note: Also used as rebuild kit on the ''Super Bowl'' float bowl with ...

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£8.39 - £8.39
£8.39
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£8.39
£9.12 - £9.12
£9.12
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£9.12

MCS Idle Screw, Extended Length. Hand Adjustable for Harley-Davidson 1981-1989 Big Twin; 1981-1987 XL Sportster. with OEM Keihin Butterfly or CV Carburettor

Available

Description Chrome plated. Extended length to allow easy idle adjustments by hand. Includes the idle screw; spring and washer. Fitment 81-89 Big Tw...

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£9.12 - £9.12
£9.12
£9.12 - £9.12
£9.12
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£8.22
£8.22 - £8.22
£8.22
£7.13
£7.13 - £7.13
£7.13

MCS Extended Idle Mixture Adjustment Screw Kit. CV Carbs for Harley-Davidson 1990-2006 Big Twin; 1988-2006 XL Sportster. with CV Carburettor

Available

Description Brass. Allows easy adjustable air mixture screw at the tip of your fingers. No screwdriver necessary. Will replace stock air mixture sc...

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£8.22
£8.22 - £8.22
£8.22
£7.13
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£7.13
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£30.83 - £30.83
£30.83
£32.79
£32.79 - £32.79
£32.79

MCS Oil Drain Plug. 1/8"-27 N.P.T. Magnetic for Harley-Davidson Oil Tank: 2000-2016 Softail. Transmission: 2000-2016 Softail; 2001-2016 Dyna, FLT/Touring; Primary: 1985-1986 FLT/Touring; 1987-2003 All Big Twin

Currently Unavailable

Description Pipe plug. Torx head. Multiple drain plug applications. OEM replacement reference 739A. Fitment Oil tank: 00-16 Softail. Transmission: ...

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£30.83 - £30.83
£30.83
£32.79
£32.79 - £32.79
£32.79
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£42.50
£42.50 - £42.50
£42.50
£38.80
£38.80 - £38.80
£38.80

MCS Muffler to Head Pipe Gasket (2) for Harley-Davidson 2017-2026 Softail (Excl. 2018-2021 FXFB/S Fat Bob; 2018-2023 FLSB Sport Glide; 2019-2020 FXDRS with 2-1 Exhaust Systems); 2017 Dyna FXDB, FXDL; 2024-2026 FLT/Touring; 2017 XL883N; 2018-2022 All XL

Available

Description Used between mufflers and header pipes of late model Softail; FLT/Touring; Dyna and XL Sportster. OEM replacement reference 65900017 Fi...

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£42.50
£42.50 - £42.50
£42.50
£38.80
£38.80 - £38.80
£38.80
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£188.02
£188.02 - £188.02
£188.02
£182.90
£182.90 - £182.90
£182.90

MCS 40mm CV Carburettor - Universal

Available

Description Quality reproduction of the 40mm Keihin Constant Vacuum with accelerator pump. This is the most frequently used carburetor in the V-Twi...

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£188.02
£188.02 - £188.02
£188.02
£182.90
£182.90 - £182.90
£182.90
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£26.90 - £26.90
£26.90
£28.56
£28.56 - £28.56
£28.56

MCS Petcock, Late OEM Style, Left Outlet for Harley-Davidson 1975-2006 Big Twin, XL Sportster(Excl. Inj. Models); Customs with 1975 Onwards Style Threaded Tanks

Available

Description Chrome; left outlet; 1/4" (6.35mm) fuel hose; with filter & reserve; 22mm thread with nut Fitment 75-06 Big Twin, XL Sportster (NU)...

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£26.90 - £26.90
£26.90
£28.56
£28.56 - £28.56
£28.56
£18.88 - £18.88
£18.88
£20.04
£20.04 - £20.04
£20.04

MCS Oil Tank Dipstick with Temperature Gauge. Chrome Black Face - 1984-1999 Softail; 1982-2003 XL…

Available

Description Dipstick = 5.5cm below bottom rubber of plug. Scale runs from 10 to 177° Celsius. Just one look at the fill plug and know if your oil i...

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£18.88 - £18.88
£18.88
£20.04
£20.04 - £20.04
£20.04
£8.44 - £8.44
£8.44
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£8.44

MCS Oil Tank Fill Plug, Short Dipstick for Harley-Davidson 1984-1999 Softail; 1982-2003 XL Sportster

Available

Description Chrome Fitment 84-99 Softail 82-03 XL Sportster (NU) Product Details Brand: MCS Category: OIL FILTERS; TANKS AND PARTS > OIL TANK...

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£8.44 - £8.44
£8.44
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£8.44
£29.38 - £29.38
£29.38
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£29.38

MCS Flange Kit, Intake Manifold Mount. Chrome for Harley-Davidson 1984-2005 Big Twin; 1986-2006 XL Sportster

Available

Description Chrome plated steel. Includes front & rear flanges. Used to attach manifold to cylinder head. Fits early 84-89 Big Twin models that...

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£29.38 - £29.38
£29.38
£29.38 - £29.38
£29.38
£2.91 - £2.91
£2.91
£2.91 - £2.91
£2.91

MCS Replacement Foam Air Filter Element, Round - Universal

Available

Description Fits round ''Breather Style'' air cleaners 508310/508798/509311/508797 and similar air cleaners; Approx. dimensions: 18.5cm diameter x ...

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£2.91 - £2.91
£2.91
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£2.91
£11.34 - £11.34
£11.34
£11.34 - £11.34
£11.34

MCS Fitting Kit, Oil Gauge. Chrome for Harley-Davidson 1970-1999 Big Twin (Excl. Twin Cam)

Available

Description Incl. fitting; 45° adapter and 11105 O-ring. Allows installation of an oil gauge on top of the crankcase oil screen plug. Fitment70-99 ...

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£11.34 - £11.34
£11.34
£11.34 - £11.34
£11.34
£19.15 - £19.15
£19.15
£19.15 - £19.15
£19.15

MCS Spacer, Rocker Arm - 1966-1984 Big Twin (4 Used) for Harley-Davidson 1966-1984 Big Twin(4 Used)

Available

Description Spacer, rocker arm Fitment66-84 Big Twin (NU) (4 used)Product Details Brand: MCS Category: MOTOR PARTS > ROCKER ARM PARTS Unit: ...

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£19.15 - £19.15
£19.15
£19.15 - £19.15
£19.15
£22.58 - £22.58
£22.58
£23.85
£23.85 - £23.85
£23.85

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

Available

Description Universal kit for petcocks that take 1/4" (6mm) hose. Includes 16" (40cm) fuel hose and two Econ-o-fit end caps. FitmentUniversal for a...

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£22.58 - £22.58
£22.58
£23.85
£23.85 - £23.85
£23.85
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£9.34
£9.34 - £9.34
£9.34
£8.10
£8.10 - £8.10
£8.10

MCS Fuel Filter Kit for Harley-Davidson 2008-2017 Softail; 2004-2017 Dyna; 2008-2025 Touring (Excl. 2023-2025 CVO; 2024-2025 FLTRX; 2024-2025 FLHX; 2025 FLHXU); 2009-2025 Trikes

Available

Description From fuel tank to fuel pump. Stock style replacement. Includes a fuel filter kit to service fuel injected models with OEM fuel filters....

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£9.34
£9.34 - £9.34
£9.34
£8.10
£8.10 - £8.10
£8.10
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