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Engine Gaskets

View our current Engine Gaskets selection for Harley-Davidson, American V-twin and compatible motorcycle applications. Product choices in this section include engine components and gaskets, seals and service parts. Compatibility varies, so match the stated model, year and technical details before ordering.

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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
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£32.28
£31.97
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£31.97

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

Low stock

Description OEM replacement reference 25416-84; 25416-84A; 25416-84B. FitmentL84-98 Big Twin (NU)Product Details Brand: James Gaskets Category: P...

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£32.28
£32.28 - £32.28
£32.28
£31.97
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£31.97
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£177.66 - £177.66
£177.66
£182.44
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£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
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£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
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£42.50
£38.80
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£38.80
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£11.42
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£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
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£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. FitmentUniversal...

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£8.93 - £8.93
£8.93
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£24.00 - £24.00
£24.00
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£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
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£24.00
£11.60 - £11.60
£11.60
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£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. FitmentUnivers...

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£11.60 - £11.60
£11.60
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£11.60
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£15.71
£18.23
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£18.23

James Gaskets Exhaust Gasket Set. 84-90/10-Up Style (Pr) – 1984–2026 Big Twin; 1986–2022 XL…

Low stock

Description 84-90/10-up OEM style. 2-pack display. Steel flat wire; knitted & compressed; without fillers. OEM replacement reference 65324-83; ...

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£15.71 - £15.71
£15.71
£18.23
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£18.23
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£31.35
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£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. FitmentL84-88 5-speed Big Twin (NU)Product Details ...

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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: James ...

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£19.50
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£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
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£8.69
£8.30
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£8.30
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£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
£25.94 - £25.94
£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. Fitment57-85 XL Sportster (NU)Product Detail...

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£25.94 - £25.94
£25.94
£25.94 - £25.94
£25.94
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£25.26
£25.26 - £25.26
£25.26
£25.01
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£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
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£25.26
£25.01
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£25.01
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£78.87
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£78.87
£73.78
£73.78 - £73.78
£73.78

James Gaskets Rocker Cover Gasket Kit. Twin Cam. Rcm – 1999–2017 Twin Cam

In stock

Description Includes RCM (Rubber Coated Metal) rocker base and rocker cover gaskets; and all other gaskets; seals and o-rings for rocker cover asse...

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£78.87
£78.87 - £78.87
£78.87
£73.78
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£73.78
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£54.33
£54.33 - £54.33
£54.33
£50.82
£50.82 - £50.82
£50.82

James Gaskets Cam Gear Change Gasket & Seal Kit – 1999–2017 Twin Cam

In stock

Description Complete with all gaskets and seals you need when the camshaft is replaced. Includes all O-rings; metal rocker cover gaskets with silic...

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£54.33
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£54.33
£50.82
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£50.82
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£10.72
£10.72 - £10.72
£10.72
£10.62
£10.62 - £10.62
£10.62

James Gaskets Carb to Air Cleaner Housing Gasket. Super E – S&S Super E Carburetor

Low stock

Description .031" paper. Fits between carburetor and backside of air cleaner housing. FitmentS&S Super E carburetorProduct Details Brand: Jame...

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£10.72
£10.72 - £10.72
£10.72
£10.62
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£10.62
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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. Fitment94-06 Big Tw...

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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) Produ...

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£36.65 - £36.65
£36.65
£37.08
£37.08 - £37.08
£37.08
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£46.98
£46.98 - £46.98
£46.98
£44.92
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£44.92

Cometic Exhaust Gasket Kit. Header to Muffler – 2021–2026 FLT/Touring; 2025–2026 RA1250…

Low stock

Description Includes left and right side muffler to header gaskets; which are different size. OEM replacement reference 65900056; 65900056A (larger...

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£46.98
£46.98 - £46.98
£46.98
£44.92
£44.92 - £44.92
£44.92
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£9.38
£9.38 - £9.38
£9.38
£8.39
£8.39 - £8.39
£8.39

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

Low stock

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

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£9.38
£9.38 - £9.38
£9.38
£8.39
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£8.39
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£26.09
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£26.09
£23.64
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£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
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£26.09
£23.64
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£23.64
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£14.59
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£14.59
£13.05
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£13.05

MCS Muffler P-Clamp 3" Polished – 1958–1984 FL; Universal

Low stock

Description Polished universal P-clamp; made from stainless steel; with an 3" (7.6cm) inside diameter. Offset and with short mount strip. Fitment 5...

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£14.59
£14.59 - £14.59
£14.59
£13.05
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£13.05
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