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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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£25.93
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£24.68

Cometic Gasket Crankcase to Inner Primary. Fiber – 1955–1964 FL with OEM Tin Primary

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Cometic Gasket Crankcase to Inner Primary. Fiber – 1955–1964 FL with OEM Tin Primary Fiber. Used between the inner primary housing and engine crank...

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£24.68
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£24.68
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£23.87
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£22.72
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£22.72

Cometic Gasket Inspection Cover. .060" AFM – 1936–1964 Big Twin OHV & Flathead…

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Cometic Gasket Inspection Cover. .060" AFM – 1936–1964 Big Twin OHV & Flathead… .060" thick AFM (Aluminum Foamet Material). OEM replacement ref...

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£22.72
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£22.72
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£36.66
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£36.66
£34.90
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£34.90

Cometic Gasket Inspection Cover. .062" AFM – 1980–1984 FLT/Touring; 1982–1984 FXR

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Cometic Gasket Inspection Cover. .062" AFM – 1980–1984 FLT/Touring; 1982–1984 FXR .060" thick AFM (Aluminum Foamet Material). OEM replacement refer...

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£36.66
£34.90
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£34.90
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£15.38
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£15.38
£14.65
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£14.65

Cometic Compliance Fitting Gaskets. FR/RR – 1984–1989 Evo Big Twin with OEM…

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Cometic Compliance Fitting Gaskets. FR/RR – 1984–1989 Evo Big Twin with OEM… Fiber. OEM style replacement manifold intake gasket. Gasket fits front...

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£15.38
£14.65
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£14.65
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£4.79
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£4.79
£4.40
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£4.40

Cometic O-ring Cam Support Plate Plug – 1999–2006 Twin Cam

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Cometic O-ring Cam Support Plate Plug – 1999–2006 Twin Cam OEM replacement reference 11298. Fitment 99-06 Twin Cam (Excl. 2006 Dyna) (NU) Product D...

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£4.79
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£4.79
£4.40
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£4.40
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£13.86
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£13.20

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

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Cometic Oil Seal Inner Primary Cover – L1984–1986 4-Speed Big Twin; L1984–2025… Rubber OD. Fits back side inner primary; seals mainshaft support be...

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£13.20
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£13.20
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£26.91
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£26.91
£25.62
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£25.62

Cometic Gasket Inspection Cover. .060" AFM – 1965–2006 Big Twin

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Cometic Gasket Inspection Cover. .060" AFM – 1965–2006 Big Twin .060" thick AFM (Aluminum Foamet Material). OEM replacement reference 60567-65; 605...

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£26.91
£25.62
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£25.62
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£36.66
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£34.90
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£34.90

Cometic Gasket Inspection Cover. .062" AFM – 1985–1994 FXR; 1985–2006 FLT/Touring

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Cometic Gasket Inspection Cover. .062" AFM – 1985–1994 FXR; 1985–2006 FLT/Touring .062" AFM (Aluminum Foamet Material). OEM replacement reference 3...

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£34.90
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£34.90
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£11.28
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£10.38
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£10.38

Cometic O-ring Crankcase to Cam Support – 1999–2017 Twin Cam

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Cometic O-ring Crankcase to Cam Support – 1999–2017 Twin Cam 2 used. OEM replacement reference 11301. Fitment 99-17 Twin Cam (NU) Product Details ...

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£11.28
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£11.28
£10.38
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£3.70
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£3.30

Cometic O-ring Oil Pump Housing – 1999–2006 Twin Cam

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Cometic O-ring Oil Pump Housing – 1999–2006 Twin Cam OEM replacement reference 11286. Fitment 99-06 Twin Cam (Excl. 2006 Dyna) (NU) Product Details...

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£3.70
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£3.30
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£3.30
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£8.01
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£7.37
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£7.37

Cometic CV Carburetor to Manifold Seal. Keihin – 1990–2006 Big Twin; 1988–2006 XL…

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Cometic CV Carburetor to Manifold Seal. Keihin – 1990–2006 Big Twin; 1988–2006 XL… OEM replacement reference 27002-89. Fitment 90-06 Big Twin; 88-0...

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£8.01
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£8.01
£7.37
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£7.37
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£8.01
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£7.37

Cometic O-ring Cylinder Head & Base Stud. Viton – 1999–2003 Twin Cam (Cyl. Head)…

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Cometic O-ring Cylinder Head & Base Stud. Viton – 1999–2003 Twin Cam (Cyl. Head)… Heat resistant rubber. Cylinder head 4 used. Cylinder base 2 ...

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£8.01
£7.37
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£85.51
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£85.51
£82.56
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£82.56

Cometic Rocker Cover 1-Piece Left & Right Gasket. SLS – 1984–1999 Evo Big Twin; 1986–2022 XL…

Out of stock

Cometic Rocker Cover 1-Piece Left & Right Gasket. SLS – 1984–1999 Evo Big Twin; 1986–2022 XL… .020" thick. In the left & right 1-piece desi...

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£85.51
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£85.51
£82.56
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£82.56
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£110.70
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£110.70
£109.16
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£109.16

Cometic Primary Cover Gasket & Seal Kit. AFM – 1994–2006 Softail; 1994–2005 Dyna.…

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Cometic Primary Cover Gasket & Seal Kit. AFM – 1994–2006 Softail; 1994–2005 Dyna.… Complete outer & inner primary cover gasket sets includi...

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£110.70
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£110.70
£109.16
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£109.16
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£105.14
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£105.14
£103.68
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£103.68

Cometic Primary Cover Gasket & Seal Kit. AFM – 1994–2006 FLT/Touring; 1994 FXR. 5-Speed…

Out of stock

Cometic Primary Cover Gasket & Seal Kit. AFM – 1994–2006 FLT/Touring; 1994 FXR. 5-Speed… Complete outer & inner primary cover gasket sets i...

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£105.14
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£105.14
£103.68
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£103.68
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£111.24
£111.24 - £111.24
£111.24
£109.70
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£109.70

Cometic Primary Cover Gasket & Seal Kit. AFM – 1989–1993 Softail; Dyna

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Cometic Primary Cover Gasket & Seal Kit. AFM – 1989–1993 Softail; Dyna Complete outer & inner primary cover gasket sets including all neces...

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£111.24
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£111.24
£109.70
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£109.70
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£82.24
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£82.24
£79.39
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£79.39

Cometic Primary Cover Gasket & Seal Kit. in/Out. AFM – 1980–1993 FLT/Touring; FXR

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Cometic Primary Cover Gasket & Seal Kit. in/Out. AFM – 1980–1993 FLT/Touring; FXR Complete outer & inner primary cover gasket sets includin...

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£82.24
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£82.24
£79.39
£79.39 - £79.39
£79.39
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£82.24
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£82.24
£79.39
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£79.39

Cometic Primary Cover Gasket & Seal Kit. AFM – 1966–1986 4-Speed FL; FX; 1986–1988…

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Cometic Primary Cover Gasket & Seal Kit. AFM – 1966–1986 4-Speed FL; FX; 1986–1988… Complete outer & inner primary cover gasket sets includ...

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£82.24
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£82.24
£79.39
£79.39 - £79.39
£79.39
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£13.21
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£13.21
£12.58
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£12.58

Cometic Breather Seal – 2007–2022 XL Sportster

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Cometic Breather Seal – 2007–2022 XL Sportster 1 used in rocker cover. Replacement for OEM 17393-07. Fitment 07-22 XL Sportster (Excl. 08-12 XR1200...

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£13.21
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£13.21
£12.58
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£12.58
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£5.25
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£5.25
£4.83
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£4.83

Cometic 84-99 B.T. Pushrod Cover Seal Kit – 1984–1999 Big Twin; 1986–1990 XL…

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Cometic 84-99 B.T. Pushrod Cover Seal Kit – 1984–1999 Big Twin; 1986–1990 XL… With OEM style rubber o-rings. Includes a complete set of 12 seals to...

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£5.25
£4.83
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£4.83
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£5.52
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£5.52
£5.08
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Cometic Middle Rocker Cover Gasket. Rubber – 2007–2022 XL Sportster; 2008–2012 XR1200

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Cometic Middle Rocker Cover Gasket. Rubber – 2007–2022 XL Sportster; 2008–2012 XR1200 Replacement for OEM 17695-07B. Fitment 07-22 XL Sportster; 08...

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£5.52
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£5.52
£5.08
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£5.08
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£18.49
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£18.49
£17.60
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£17.60

Cometic Upper Rocker Cover Gasket. Rubber – 2007–2022 XL Sportster

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Cometic Upper Rocker Cover Gasket. Rubber – 2007–2022 XL Sportster Replacement for OEM 17362-07B Fitment 07-22 XL Sportster (Excl. 08-12 XR1200) (N...

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£18.49
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£18.49
£17.60
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£17.60
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£12.30
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£12.30
£11.71
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£11.71

Cometic Rocker Cover Umbrella Valve – 1992–1999 Evo Big Twin; 1991–2003 XL…

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Cometic Rocker Cover Umbrella Valve – 1992–1999 Evo Big Twin; 1991–2003 XL… Replacement rubber valve for the rocker cover breather system. Replacem...

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£12.30
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£12.30
£11.71
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£11.71
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£10.80
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£9.94
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£9.94

Cometic Gasket Tappet Cover Set (2Pk) – 2004–2022 XL Sportster; 2008–2012 XR1200

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Cometic Gasket Tappet Cover Set (2Pk) – 2004–2022 XL Sportster; 2008–2012 XR1200 .031" fiber. OEM replacement reference 17976-04. Fitment 04-22 XL ...

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£10.80
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£10.80
£9.94
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£9.94
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