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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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£63.08
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£63.08
£60.05
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£60.05

Cometic Cam Cover Gaskets. .060" AFM – 1936–1940 E; EL Knucklehead

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Cometic Cam Cover Gaskets. .060" AFM – 1936–1940 E; EL Knucklehead .060" thick AFM (Aluminum Foamet Material). AFM gaskets are made with an aluminu...

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£63.08
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£7.49
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£6.89
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Cometic Pushrod Cover Spring – 1936–2025 Big Twin; 1957–1990 XL…

Out of stock

Cometic Pushrod Cover Spring – 1936–2025 Big Twin; 1957–1990 XL… OEM style reproduction. Used between the spring and seal of the lower pushrod tube...

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£6.89
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£51.20
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£48.75
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£48.75

Cometic Cylinder Head Gasket Set. 3-3/4" .030" MLS – 1984–1999 Big Twin

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Cometic Cylinder Head Gasket Set. 3-3/4" .030" MLS – 1984–1999 Big Twin .030" thick MLS (Multi Layer Steel). Consists of a top and bottom layer of ...

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£51.20
£48.75
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£48.75
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£51.20
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£48.75
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£48.75

Cometic Cylinder Head. 3.5" Bore .051" MLS – 1984–1999 Big Twin; 1988–2022 XL…

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Cometic Cylinder Head. 3.5" Bore .051" MLS – 1984–1999 Big Twin; 1988–2022 XL… .051" thick MLS (Multi Layer Steel). Consists of a top and bottom la...

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£48.75
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£48.75
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£5.25
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£4.83
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£4.83

Cometic Air Cleaner Backing Plate O-ring – Some 1998–2007 Big Twin; Some 2006–2016…

Out of stock

Cometic Air Cleaner Backing Plate O-ring – Some 1998–2007 Big Twin; Some 2006–2016… In aircleaner back plate. Seals breather bolt. OEM replacement ...

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£4.83
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£3.22
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£2.87
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£2.87

Cometic Oil Pump End Cap O-rings – 1992–1999 Evo Big Twin

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Cometic Oil Pump End Cap O-rings – 1992–1999 Evo Big Twin 2 used. OEM replacement reference 11241. Fitment 92-99 Evo Big Twin (NU) Product Details ...

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£2.87
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£102.25
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£98.71
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£98.71

Cometic Gasket Transmission Oil Pan. .060" AFM – 1999–2016 FLT/Touring

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Cometic Gasket Transmission Oil Pan. .060" AFM – 1999–2016 FLT/Touring .060" AFM (Aluminum Foamet Material). OEM replacement reference 26077-99A. C...

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£102.25
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£98.71
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£98.71
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£102.23
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£98.69
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£98.69

Cometic Transmission Oil Pan Gaskets. .060" AFM – 1999–2017 Dyna

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Cometic Transmission Oil Pan Gaskets. .060" AFM – 1999–2017 Dyna .060" AFM (Aluminum Foamet Material). OEM replacement reference 26702-99A. Cometic...

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£102.23
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£98.69
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Cometic Gasket Transmission Top Cover. AFM – 1999–2005 Dyna

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Cometic Gasket Transmission Top Cover. AFM – 1999–2005 Dyna AFM (Aluminum Foamette Material). OEM replacement reference 34917-99; 34917-99A; 34917-...

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£27.10
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£25.80
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£30.10
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£28.66
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£28.66

Cometic Transmission Bearing Housing Gasket. .032" AFM – 1999–2006 Big Twin

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Cometic Transmission Bearing Housing Gasket. .032" AFM – 1999–2006 Big Twin .032" thick AFM (Aluminum Foamet Material). OEM replacement reference 3...

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£30.10
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£30.10
£28.66
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£25.45
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£24.23
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£24.23

Cometic Air Cleaner Housing to Filter Element Gasket. AFM – 1999–2001 FLT/Touring with…

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Cometic Air Cleaner Housing to Filter Element Gasket. AFM – 1999–2001 FLT/Touring with… AFM. Used between the air filter backplate assembly and the...

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£25.45
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£25.45
£24.23
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£21.65
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£20.61
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£20.61

Cometic Throttle Body to Air Cleaner Housing Gasket. AFM – 1999–2001 Twin Cam Delphi Fuel Injected…

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Cometic Throttle Body to Air Cleaner Housing Gasket. AFM – 1999–2001 Twin Cam Delphi Fuel Injected… AFM (Aluminum Foamet Material). Induction modul...

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£21.65
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£20.61
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£19.71
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Cometic Carb/Throttle Body to Air Cleaner Housing. AFM – CV Carburetor: 1995–2000 Evo Big Twin…

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Cometic Carb/Throttle Body to Air Cleaner Housing. AFM – CV Carburetor: 1995–2000 Evo Big Twin… .060" AFM. Fits between carb & air cleaner hous...

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£19.71
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£19.71
£18.76
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£18.76
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£21.56
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£21.56
£20.53
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£20.53

Cometic Cam Gear Change Gasket Kit. 70-92 B.T – 1970–1992 Big Twin

Out of stock

Cometic Cam Gear Change Gasket Kit. 70-92 B.T – 1970–1992 Big Twin Metal base. Complete with all gaskets and seals you need when the camshaft is re...

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£21.56
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£21.56
£20.53
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£20.53
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£7.14
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£7.14
£6.57
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£6.57

Cometic Pushrod Cover Seal Kit – L1981–1984 Big Twin

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Cometic Pushrod Cover Seal Kit – L1981–1984 Big Twin Includes lower & middle o-rings with upper quad style seals. Includes a complete set of 12...

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£7.14
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£7.14
£6.57
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£5.66
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£5.20
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£5.20

Cometic Pushrod Cover Seal Kit – L79-E81 Big Twin

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Cometic Pushrod Cover Seal Kit – L79-E81 Big Twin OEM style o-ring seals. Includes a complete set of 12 seals to service one engine Fitment L79-E81...

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£5.66
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£5.20
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£5.20
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£8.28
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£7.62
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Cometic Tappet Block Gaskets. FR/RR. AFM – 1999–2017 Twin Cam

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Cometic Tappet Block Gaskets. FR/RR. AFM – 1999–2017 Twin Cam .060" thick AFM (Aluminum Foamet Material). These gaskets have an aluminum base with ...

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£8.28
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£8.28
£7.62
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£27.71
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£26.38
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£26.38

Cometic Cylinder Base Gasket Set FR/RR. .020" RCS – 1948–1962 Panhead

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Cometic Cylinder Base Gasket Set FR/RR. .020" RCS – 1948–1962 Panhead Front & rear set. .020" thick RCS (Rubber Coated Steel); an embossed stee...

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£27.71
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£27.71
£26.38
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£26.38
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£20.26
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£20.26
£19.29
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£19.29

Cometic Gasket Transmission End Cover. AFM – 1980–1986 FLT/Touring; FXR

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Cometic Gasket Transmission End Cover. AFM – 1980–1986 FLT/Touring; FXR AFM (aluminum Foamet Material). Used between transmission bearing housing a...

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£20.26
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£20.26
£19.29
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£19.29
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£11.28
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£11.28
£10.38
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£10.38

Cometic Gasket Transmission Top Cover. .032" AFM – 36-E79 Big Twin with Ratchet Top…

Out of stock

Cometic Gasket Transmission Top Cover. .032" AFM – 36-E79 Big Twin with Ratchet Top… .032" AFM (Aluminum Foamet Material). Fits ratchet top type tr...

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£11.28
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£11.28
£10.38
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£10.38
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£8.01
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£7.37
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£7.37

Cometic Gasket Transmission Shifter Adapter Plate. AFM – 52-E79 Big Twin with Foot Shift

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Cometic Gasket Transmission Shifter Adapter Plate. AFM – 52-E79 Big Twin with Foot Shift .032" thick AFM (Aluminum Foamet Material). Fits with ratc...

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£8.01
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£8.01
£7.37
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£16.95
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£16.14
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£16.14

Cometic. Gasket Transmission Shifter Cover. AFM – 52-E79 Big Twin with Foot Shift

Out of stock

Cometic. Gasket Transmission Shifter Cover. AFM – 52-E79 Big Twin with Foot Shift .032" thick AFM (Aluminum Foamet Material). OEM replacement refer...

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£16.95
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£16.95
£16.14
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£16.14
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£9.69
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£9.69
£8.92
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£8.92

Cometic Gasket Transmission Shifter Shaft Cover. AFM – L1979–1986 4-Speed Big Twin

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Cometic Gasket Transmission Shifter Shaft Cover. AFM – L1979–1986 4-Speed Big Twin .031" thick AFM (Aluminum Foamet Material). Fits with rotary top...

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£9.69
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£9.69
£8.92
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£8.92
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£8.01
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£7.37
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£7.37

Cometic Gasket Transmission Top Cover. .032" AFM – L1979–1986 4-Speed Big Twin

Only 2 left!

Cometic Gasket Transmission Top Cover. .032" AFM – L1979–1986 4-Speed Big Twin .032" AFM (Aluminum Foamet Material). Fits transmissions with rotary...

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£8.01
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£8.01
£7.37
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£7.37
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