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Dyna – Engine & Gaskets

Browse engine & gaskets selected for Harley-Davidson Dyna motorcycles. Available items span engine components and gaskets, seals and service parts, helping you compare parts intended for different jobs. Confirm model coverage, key measurements and any supporting parts required on the individual listing.

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£10.40 - £10.40
£10.40
£10.40 - £10.40
£10.40

MCS Valve Key Set – 1984–1999 Evo Big Twin; 1999–2004 Twin…

Low stock

Description OEM style replacement valve keepers. Sold in set of 8 to service one engine. Repl. 18229-83A. Fitment 84-99 Evo Big Twin; 99-04 Twin Ca...

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£10.40 - £10.40
£10.40
£10.40 - £10.40
£10.40
£25.97 - £25.97
£25.97
£25.97 - £25.97
£25.97

MCS Inner Bearing Race, Pinion Shaft – 1987–1999 Big Twin

Low stock

Description Inner bearing race, pinion shaft Fitment 87-99 Big Twin (NU) (Excl. TC) Product Details Brand: MCS Category: MOTOR PARTS > PINION...

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£25.97 - £25.97
£25.97
£25.97 - £25.97
£25.97
Sold out
£22.82 - £22.82
£22.82
£22.82 - £22.82
£22.82

MCS Pinion Shaft Bushing. Std. Size – L1973–1992 Big Twin

Out of stock

Description Bronze. Used in cam cover. OEM style replacement for 25582-73. Note: Removes with JIMS 978300 tool (for 54-99 B.T.); installs with JIMS...

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£22.82 - £22.82
£22.82
£22.82 - £22.82
£22.82
Sold out
£83.04 - £83.04
£83.04
£83.04 - £83.04
£83.04

MCS Bushing/Bearing Kit, Cam & Gear Shaft 73-92 B.t – 1973–1992 Big Twin

Low stock

Description Complete kit to set your cam up right; without missing anything. Kit includes following OEM part numbers: 2x 275 gear cover bushing pin...

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£83.04 - £83.04
£83.04
£83.04 - £83.04
£83.04
£15.83 - £15.83
£15.83
£15.83 - £15.83
£15.83

MCS Inner Pushrod Cover Tube Set – L1979–1984 Shovelhead; 1984–1999 Evo Big…

Low stock

Description Zinc plated steel. For use with o-ring style seals. OEM style reproduction. Inner (upper) pushrod cover tubes that fit behind the clip ...

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£15.83 - £15.83
£15.83
£15.83 - £15.83
£15.83
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£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16

MCS Breather Valve Shim, .130" – L1977–1999 Big Twin

Out of stock

Description Use with steel breather valves only. Large hole. Used to set correct end play. Note: Steel breathers require steel breather valve space...

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£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16
Sold out
Sold out
£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16

MCS Breather Valve Shim, .135" – L1977–1999 Big Twin

Out of stock

Description Use with steel breather valves only. Large hole. Used to set correct end play. Note: Steel breathers require steel breather valve space...

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£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16
Sold out
£118.56 - £118.56
£118.56
£118.56 - £118.56
£118.56

Daytona Oil Pump Assembly. Twin Cam – 1999–2006 Twin Cam

Low stock

Description Stock replacement gerotor oil pump assembly. Complete as shown. Fitment 99-06 Twin Cam (Excl. 2006 Dyna) (NU) Product Details Brand: ...

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£118.56 - £118.56
£118.56
£118.56 - £118.56
£118.56
£97.35 - £97.35
£97.35
£97.35 - £97.35
£97.35

MCS Complete Twin Cam Pushrod Cover Kit. Black – 1999–2017 Twin Cam

Low stock

Description Satin black finish. Complete OEM reproduction style replacement pushrod cover kit with everything included for a hassle-free installati...

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£97.35 - £97.35
£97.35
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£97.35
£143.82 - £143.82
£143.82
£143.82 - £143.82
£143.82

MCS OEM Style L73-92 Cam Cover, Chrome – L1973–1992 Big Twin

In stock

Description Cast aluminum gear cover / nose cone. Fitment L73-92 Big Twin (NU) Product Details Brand: MCS Category: MOTOR PARTS > CAM COVERS ...

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£143.82 - £143.82
£143.82
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£143.82
£103.80 - £103.80
£103.80
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£103.80

MCS Pinion Shaft Bushing. Std. Size – 1993–1999 Big Twin

Low stock

Description Steel. In crankcase. Standard size is 2.1270". 360° oiling. Note: The 93-99 B.T. pinion bushing features a 360° oiling groove. These bu...

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£103.80 - £103.80
£103.80
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£103.80
£47.02 - £47.02
£47.02
£47.02 - £47.02
£47.02

MCS Pinion Shaft Bearing. White/Grey – 1987–1999 Big Twin

Low stock

Description Sold with the OEM color code. Replacement late style right side crankcase bearing. Note: Will fit 58-86 Big Twins when pinion shaft spa...

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£47.02 - £47.02
£47.02
£47.02 - £47.02
£47.02
£241.64 - £241.64
£241.64
£241.64 - £241.64
£241.64

MCS Evo B.t. Rocker Cover Kit (1 Cyl.). Chrome – 1984–1999 Evo Big Twin

Low stock

Description Chrome plated aluminum. Complete rockerbox set for one cylinder head. With breather passages and umbrella valves for late model head br...

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£241.64 - £241.64
£241.64
£241.64 - £241.64
£241.64
£19.15 - £19.15
£19.15
£19.15 - £19.15
£19.15

MCS Sprocket Shaft Bearing Spacer Shim .116" – 1969–2002 Big Twin; Twin Cam B

Low stock

Description Used to set correct pre-load onto sprocket shaft bearings. Approx. dimensions: 1.265" ID; 1.530" OD Fitment 69-02 Big Twin; Twin Cam B ...

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£19.15 - £19.15
£19.15
£19.15 - £19.15
£19.15
£31.18 - £31.18
£31.18
£31.18 - £31.18
£31.18

MCS Upper Valve Spring Collar Set. Steel. Std – 1984–1999 Evo Big Twin; 1999–2004 Twin…

Low stock

Description OEM style replacement steel top collars for use in OEM applications. USA made. Repl. 18219-83A. Fitment 84-99 Evo Big Twin; 99-04 Twin ...

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£31.18 - £31.18
£31.18
£31.18 - £31.18
£31.18
£13.89 - £13.89
£13.89
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£13.89

MCS Spring, Pushrod Cover / Keeper – 1936–2025 Big Twin; 1957–1990 XL…

Low stock

Description OEM style reproduction. OEM replacement reference 17947-36. Fitment 36-25 Big Twin (excl. Flatheads); 57-90 (NU) XL Sportster Product D...

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£13.89 - £13.89
£13.89
£13.89 - £13.89
£13.89
£19.15 - £19.15
£19.15
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£19.15

MCS Sprocket Shaft Bearing Spacer Shim .100" – 1969–2002 Big Twin; Twin Cam B

Low stock

Description Used to set correct pre-load onto sprocket shaft bearings. Approx. dimensions: 1.265" ID; 1.530" OD Fitment 69-02 Big Twin; Twin Cam B ...

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£19.15 - £19.15
£19.15
£19.15 - £19.15
£19.15
£429.37 - £429.37
£429.37
£429.37 - £429.37
£429.37

MCS Twin Cam Rocker Cover Kit, OEM Style. Chrome – 1999–2017 Twin Cam

Low stock

Description Chrome plated. Complete kit for 2 cylinders. OEM style replacement for 17572-99 upper & 17573-99 lower covers. Fitment 99-17 Twin C...

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£429.37 - £429.37
£429.37
£429.37 - £429.37
£429.37
£6.97 - £6.97
£6.97
£6.97 - £6.97
£6.97

MCS Flywheel Thrust Washer Set, Bronze – L1970–1999 B.t; L79-E86 XL Sportster

In stock

Description For use with aluminum retainers; fits between connecting rods and flywheels. Approx. dimensions: 1.415" ID x 2.329" OD x .065" thick. O...

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£6.97 - £6.97
£6.97
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£6.97
£8.65 - £8.65
£8.65
£8.65 - £8.65
£8.65

MCS Oil Pump, Idler Shaft – 1968–1999 Big Twin

Low stock

Description Oil pump, idler shaft Fitment 68-99 Big Twin (NU) (Excl. TC) Product Details Brand: MCS Category: MOTOR PARTS > OIL PUMP PARTS U...

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£8.65 - £8.65
£8.65
£8.65 - £8.65
£8.65
£29.43 - £29.43
£29.43
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£29.43

MCS Flywheel Thrust Washer Set, Bronze. +.005" – L1970–1999 B.t; L79-E86 XL Sportster

Low stock

Description +.005 oversize. For use with aluminum retainers; fits between connecting rods and flywheels. OEM replacement reference none. Fitment L7...

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£29.43 - £29.43
£29.43
£29.43 - £29.43
£29.43
£6.90 - £6.90
£6.90
£6.90 - £6.90
£6.90

MCS Retaining Ring, Front Camshaft – 2007–2017 Softail; 2006–2017 Dyna…

Low stock

Description External. Fitment 07-17 Softail; 06-17 Dyna; 07-16 FLT/Touring (NU) Product Details Brand: MCS Category: MOTOR PARTS > LOWER END ...

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£6.90 - £6.90
£6.90
£6.90 - £6.90
£6.90
£22.64 - £22.64
£22.64
£22.64 - £22.64
£22.64

MCS Dowel Pin – Transmission Housing: 1941–1986 4-Speed…

Low stock

Description Transmission housing & trapdoor. Inner to outer primary cover. Cam cover OEM replacement reference 375 Fitment Transmission housing...

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£22.64 - £22.64
£22.64
£22.64 - £22.64
£22.64
Cylinder Head Gaskets, 16773-85-TS - Part #DS174500 - Hogparts UK
£83.86 - £83.86
£83.86
£83.86 - £83.86
£83.86

James Gasket Gaskets Cylinder HEAD for Harley-Davidson Touring, Softail, Dyna & FXR 1984-2000

In stock

DescriptionReplacement Cylinder Head and Compliance Fitting GasketsMade in the U.S.A.DetailsBore Size : 3,625"Material : SiliconeType : Cylinder He...

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£83.86 - £83.86
£83.86
£83.86 - £83.86
£83.86

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