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Engine & Transmission

Compare the available options in the Engine & Transmission range for Harley-Davidson, American V-twin and compatible motorcycle applications. Current products cover engine components and clutch and transmission parts, depending on the specification and application. Confirm model coverage, key measurements and any supporting parts required on the individual listing.

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£31.77
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£31.77
£31.46
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£31.46

James Gaskets Manifold Intake Seals – 1984–2017 Big Twin; 1986–2022 XL…

Low stock

Description Used between manifold and cylinder head. OEM replacement reference 26995-86B and 26992-99. Note: Will not fit 84-89 Evo B.T. models sti...

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£31.77
£31.77 - £31.77
£31.77
£31.46
£31.46 - £31.46
£31.46
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£32.28
£32.28 - £32.28
£32.28
£31.97
£31.97 - £31.97
£31.97

James Gaskets O-Ring Derby Cover – L1984–1998 Big Twin

Low stock

Description OEM replacement reference 25416-84; 25416-84A; 25416-84B. Fitment L84-98 Big Twin (NU) Product Details Brand: James Gaskets Category...

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£32.28
£32.28 - £32.28
£32.28
£31.97
£31.97 - £31.97
£31.97
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£177.66 - £177.66
£177.66
£182.44
£182.44 - £182.44
£182.44

James Gaskets Gasket Primary Cover. .062" Paper/Silicone – 1989–2006 Softail; 1991–2005 Dyna

Low stock

Description .062" fiber reinforced paper with a silicone bead. For 5-speed models. OEM replacement reference 60539-89; 60539-89A; 60539-89B; 60539-...

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£177.66 - £177.66
£177.66
£182.44
£182.44 - £182.44
£182.44
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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) – 2017–2026 Softail; 2017 Dyna FXDB; FXDL…

Low stock

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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£11.42
£11.42 - £11.42
£11.42
£11.31
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£11.31

James Gaskets O-Ring Drain, Dipstick & Oil Pump Plugs (25pk) – Crankcase; Drain Plug (1 Used):…

Low stock

Description Multi-application. OEM replacement reference 11105 Fitment Crankcase; drain plug (1 used): 77-03 XL Sportster (NU). Primary cover; drai...

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£11.42
£11.42 - £11.42
£11.42
£11.31
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£11.31
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£8.93 - £8.93
£8.93
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£8.93

MCS Muffler Middle Clamp 1-7/8" Chrome – Universal

In stock

Description Chrome plated universal middle clamp; made from steel; with an 1-7/8" (4.8cm) inside diameter and without mount strip. Fitment Universa...

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£8.93 - £8.93
£8.93
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£8.93
£24.00 - £24.00
£24.00
£24.00 - £24.00
£24.00

MCS Flange, Exhaust Pipe 04-17 Thick Style. Black – 1984–2026 Big Twin; 1986–2022 XL…

Low stock

Description Black anodized aluminum; 04-17 style. Used to mount exhaust to cylinder head. Note: Exhaust retaining rings are required for installati...

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£24.00 - £24.00
£24.00
£24.00 - £24.00
£24.00
£11.60 - £11.60
£11.60
£11.60 - £11.60
£11.60

MCS Muffler Middle Clamp 1-3/4" Chrome – Universal

Low stock

Description Chrome plated universal middle clamp; made from steel; with an 1-3/4" (4.4cm) inside diameter and with long mount strip. Fitment Univer...

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£11.60 - £11.60
£11.60
£11.60 - £11.60
£11.60
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£31.35
£31.35 - £31.35
£31.35
£31.04
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£31.04

James Gaskets Oil Seal Starter Shaft. Dual Lip – L1984–1988 5-Speed Big Twin

Low stock

Description Double lip. Used in rear of inner primary housing. OEM replacement reference 12051. Fitment L84-88 5-speed Big Twin (NU) Product Detail...

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£31.35
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£31.35
£31.04
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£31.04
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£19.50
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£19.50
£19.31
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£19.31

James Gaskets Square O-Ring Ring Derby Cover – 1994–2022 XL Sportster; 2008–2012 XR1200

Low stock

Description OEM style square seal. OEM replacement reference 25463-94A. Fitment 94-22 XL Sportster; 08-12 XR1200 (NU) Product Details Brand: Jame...

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£19.50
£19.50 - £19.50
£19.50
£19.31
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£19.31
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£8.69
£8.69 - £8.69
£8.69
£8.30
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£8.30

James Gaskets Oil Pump Check Valve/Clutch/Cam Balls – S&S Hvhp Pump: 1984–1999 Big Twin…

Low stock

Description 3/8" diameter steel balls. Various applications. OEM replacement reference 8873. Fitment S&S HVHP pump: 84-99 Big Twin; 99-06 TC (E...

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£8.69
£8.69 - £8.69
£8.69
£8.30
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£8.30
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£9.07 - £9.07
£9.07
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£9.07

MCS Exhaust T-Bolt Kit – Mufflers with Slider Channels

In stock

Description Zinc plated steel. Used to mount mufflers that have the slider channel / funnel type mounting. T-bolts come with a 5/16"-18 x 1" stud. ...

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£9.07 - £9.07
£9.07
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£9.07
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£25.94
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£25.94

MCS XL Sportster Heavy Duty Extra Wide Header Clamps. Chrome – 1957–1985 XL Sportster

Low stock

Description Extra wide; 1-1/16" (2.7 cm). Used to mount the exhaust header pipes to the cylinder head. Fitment 57-85 XL Sportster (NU) Product Deta...

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£25.94 - £25.94
£25.94
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£25.94
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£25.26
£25.26 - £25.26
£25.26
£25.01
£25.01 - £25.01
£25.01

James Gaskets Oil Seal Inner Primary Cover – L1984–1986 4-Speed Big Twin; L1984–2025…

Low stock

Description Double lip. Rubber OD. Fits back side inner primary; seals mainshaft support bearing. OEM replacement reference 12052; 12052A. Fitment ...

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£25.26
£25.26 - £25.26
£25.26
£25.01
£25.01 - £25.01
£25.01
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£40.48 - £40.48
£40.48
£40.97
£40.97 - £40.97
£40.97

James Gaskets Oil Seal Starter Shaft. Double Lip – 1994–2006 Big Twin

Low stock

Description Double lip. Fits backside of inner primary cover where it seals the starter shaft. OEM replacement reference 12066. Fitment 94-06 Big T...

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£40.48 - £40.48
£40.48
£40.97
£40.97 - £40.97
£40.97
£36.65 - £36.65
£36.65
£37.08
£37.08 - £37.08
£37.08

James Gaskets O-Ring Inner Primary Housing to Crankcase – 1984–2006 Softail; FLT/Touring…

Low stock

Description OEM replacement reference 11147; 11147A. Fitment 84-06 Softail; FLT/Touring; 84-94 FXR; 1982 FL Classic; 83-84 FLH80; 91-05 Dyna (NU) P...

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£36.65 - £36.65
£36.65
£37.08
£37.08 - £37.08
£37.08
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£26.09
£26.09 - £26.09
£26.09
£23.64
£23.64 - £23.64
£23.64

MCS Exhaust Flange and Retainer Kit. Chrome – 1984–2026 Big Twin; 1986–2022 XL…

Low stock

Description Steel. Complete kit with everything you need. Includes 2 flanges (84-03 style/17-up style) and 2 retaining rings. OEM replacement refer...

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£26.09
£26.09 - £26.09
£26.09
£23.64
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£23.64
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Sold out
£12.88
£12.88 - £12.88
£12.88
£10.20
£10.20 - £10.20
£10.20

MCS Exhaust Gaskets. 91-09 Style – 1984–2026 Big Twin; 1986–2022 XL…

Out of stock

Description ''late'' 91-09 conical style. Note: The 86-03/10-up style is preferred by many for better flow characteristics. Note: The 91-09 late st...

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£12.88
£12.88 - £12.88
£12.88
£10.20
£10.20 - £10.20
£10.20
Sold out
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£16.52
£16.52 - £16.52
£16.52
£15.79
£15.79 - £15.79
£15.79

Fuel-Tool Replacement O-Ring Ext. Fuel Line(5pk) – 2001–2026 H-D with Delphi Fuel Injection

Low stock

Description Replacement chemically resistant Viton o-ring that fits inside the male side (fuel tank side) of the external fuel line. Note See 59034...

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£16.52
£16.52 - £16.52
£16.52
£15.79
£15.79 - £15.79
£15.79
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£10.93
£10.93 - £10.93
£10.93
£9.77
£9.77 - £9.77
£9.77

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
£10.93 - £10.93
£10.93
£9.77
£9.77 - £9.77
£9.77
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£39.83
£39.83 - £39.83
£39.83
£39.44
£39.44 - £39.44
£39.44

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
£39.83 - £39.83
£39.83
£39.44
£39.44 - £39.44
£39.44
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£25.65 - £25.65
£25.65
£25.65 - £25.65
£25.65

MCS XL Sportster Heavy Duty Header Clamps. Chrome – 1957–1985 XL Sportster

Low stock

Description Heavy Duty; standard width. Used to mount the exhaust header pipes to the cylinder heads. Fitment 57-85 XL Sportster (NU) Product Detai...

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£25.65 - £25.65
£25.65
£25.65 - £25.65
£25.65
£5.92 - £5.92
£5.92
£5.92 - £5.92
£5.92

MCS Universal Exhaust Mount Bracket. 3" Long, 2 Holes

Low stock

Description Chromed steel. Straight. 3mm thick. Exhaust hanger bracket; for use in custom applications. Fitment exhaust Product Details Brand: MC...

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£5.92 - £5.92
£5.92
£5.92 - £5.92
£5.92
£10.22 - £10.22
£10.22
£10.22 - £10.22
£10.22

MCS Universal Exhaust Mount Bracket. 8" Long, 1 Hole

Low stock

Description Chromed steel. Straight. 3mm thick. Exhaust hanger bracket; for use in custom applications. Fitment exhaust Product Details Brand: MC...

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£10.22 - £10.22
£10.22
£10.22 - £10.22
£10.22

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