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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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£24.58
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£23.40

Cometic Rocker Cover Gaskets. .020" SLS – 1966–1984 Shovelhead

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Cometic Rocker Cover Gaskets. .020" SLS – 1966–1984 Shovelhead .020" SLS (Single-Layer-Steel). A stainless spring steel .020" thick core with a .00...

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£21.82
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£20.78
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£20.78

Cometic Rocker Cover Gaskets. .031" Fiber – 1966–1984 Shovelhead

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Cometic Rocker Cover Gaskets. .031" Fiber – 1966–1984 Shovelhead .031" fiber. OEM replacement reference 17540-69A. Fitment 66-84 Shovelhead (NU) Pr...

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£20.78
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£20.78
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£26.19
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£24.93
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£24.93

Cometic Felt Pad for Rocker Cover – 1948–1965 Panhead

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Cometic Felt Pad for Rocker Cover – 1948–1965 Panhead Felt material. Replacement for OEM 17507-48 and 174-48. Fitment 48-65 Panhead (NU) Product De...

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£24.93
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£24.93
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£48.26
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£48.26
£45.94
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£45.94

Cometic Rocker Cover Gasket. Fiber, Thin – 1948–1965 Panhead

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Cometic Rocker Cover Gasket. Fiber, Thin – 1948–1965 Panhead .031" fiber material. Replacement for the OEM cork 17541-48A/B/C; 175-48 gasket. Fitme...

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£48.26
£45.94
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£45.94
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£29.28
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£27.87
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£27.87

Cometic Left Rocker Cover Gasket. SLS .010" – 1984–1999 Evo Big Twin; 1986–2022 XL…

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Cometic Left Rocker Cover Gasket. SLS .010" – 1984–1999 Evo Big Twin; 1986–2022 XL… .010" thick (extra thin). Standard thickness is .020". OEM repl...

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£27.87
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£23.40
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£23.40

Cometic Right Rocker Cover Gasket. SLS .010" – 1984–1999 Evo Big Twin; 1986–2022 XL…

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Cometic Right Rocker Cover Gasket. SLS .010" – 1984–1999 Evo Big Twin; 1986–2022 XL… .010" thick (extra thin). Standard thickness is .020". SLS (Si...

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£12.73
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£12.12
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£12.12

Cometic Middle Rocker Cover Gaskets. Cork – 1984–1999 Evo Big Twin; 1986–2006 XL…

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Cometic Middle Rocker Cover Gaskets. Cork – 1984–1999 Evo Big Twin; 1986–2006 XL… Replacement for OEM 17358-84. Fitment 84-99 Evo Big Twin; 86-06 X...

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£29.28
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£27.87
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£27.87

Cometic Gasket Lower & Upper Rocker Cover. Rubber (5) – 1991–2003 XL Sportster

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Cometic Gasket Lower & Upper Rocker Cover. Rubber (5) – 1991–2003 XL Sportster 04-06 style with elongated holes. Will retrofit to 91-03 models ...

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£29.28
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£27.87
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£27.87

Cometic Upper Rocker Cover Gasket. Rubber – 1991–2003 XL Sportster

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Cometic Upper Rocker Cover Gasket. Rubber – 1991–2003 XL Sportster Replacement for OEM 17354-89. Fitment 91-03 XL Sportster (NU) Product Details ...

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£29.28
£27.87
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£27.87
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£40.80
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£40.80
£38.85
£38.85 - £38.85
£38.85

Cometic Lower Rocker Cover Gasket. Cork – 1986–1990 XL Sportster

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Cometic Lower Rocker Cover Gasket. Cork – 1986–1990 XL Sportster Replacement for OEM 17353-86. Fitment 86-90 XL Sportster (NU) Product Details Br...

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£40.80
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£40.80
£38.85
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£38.85
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£38.51
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£38.51
£36.67
£36.67 - £36.67
£36.67

Cometic Lower Rocker Cover Gasket. Rubber – 1986–1990 XL Sportster

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Cometic Lower Rocker Cover Gasket. Rubber – 1986–1990 XL Sportster Replacement for OEM 17353-86A Fitment 86-90 XL Sportster (NU) Product Details ...

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£38.51
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£38.51
£36.67
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£36.67
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£40.80
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£40.80
£38.85
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£38.85

Cometic Upper Rocker Cover Gasket. Cork – 1986–1990 XL Sportster

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Cometic Upper Rocker Cover Gasket. Cork – 1986–1990 XL Sportster OEM replacement reference 17354-86 Fitment 86-90 XL Sportster (NU) Product Details...

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£40.80
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£40.80
£38.85
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£38.85
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£38.51
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£38.51
£36.67
£36.67 - £36.67
£36.67

Cometic Upper Rocker Cover Gasket. Rubber – 1986–1990 XL Sportster

Only 2 left!

Cometic Upper Rocker Cover Gasket. Rubber – 1986–1990 XL Sportster OEM replacement reference 17354-86A Fitment 86-90 XL Sportster (NU) Product Deta...

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£38.51
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£38.51
£36.67
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£36.67
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£33.21
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£33.21
£31.61
£31.61 - £31.61
£31.61

Cometic Lower Rocker Cover Gasket. Rubber – 1992–1999 Evo Big Twin

Only 1 left!

Cometic Lower Rocker Cover Gasket. Rubber – 1992–1999 Evo Big Twin Used between rocker covers. OEM replacement reference 17355-92 Fitment 92-99 Evo...

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£33.21
£31.61
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£31.61
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£33.21
£33.21 - £33.21
£33.21
£31.61
£31.61 - £31.61
£31.61

Cometic Upper Rocker Cover Gasket. Rubber – 1992–1999 Evo Big Twin

Out of stock

Cometic Upper Rocker Cover Gasket. Rubber – 1992–1999 Evo Big Twin Used between rocker covers. OEM replacement reference 17356-92 Fitment 92-99 Evo...

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£33.21
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£33.21
£31.61
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£31.61
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£19.97
£19.97 - £19.97
£19.97
£19.01
£19.01 - £19.01
£19.01

Cometic Left Rocker Cover Gasket. Fiber – 1984–1999 Evo Big Twin; 1986–2022 XL…

Only 2 left!

Cometic Left Rocker Cover Gasket. Fiber – 1984–1999 Evo Big Twin; 1986–2022 XL… OEM replacement reference 16779-84D Fitment 84-99 Evo Big Twin; 86-...

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£19.97
£19.01
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£19.01
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£29.28
£29.28 - £29.28
£29.28
£27.87
£27.87 - £27.87
£27.87

Cometic Left Rocker Cover Gasket. SLS .020" – 1984–1999 Evo Big Twin; 1986–2022 XL…

Out of stock

Cometic Left Rocker Cover Gasket. SLS .020" – 1984–1999 Evo Big Twin; 1986–2022 XL… .020" thick (standard thickness). OEM replacement reference 167...

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£29.28
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£29.28
£27.87
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£27.87
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£12.30
£12.30 - £12.30
£12.30
£11.71
£11.71 - £11.71
£11.71

Cometic Right Rocker Cover Gasket. Fiber – 1984–1999 Evo Big Twin; 1986–2022 XL…

Only 2 left!

Cometic Right Rocker Cover Gasket. Fiber – 1984–1999 Evo Big Twin; 1986–2022 XL… Replacement for OEM 16778-84B. Fitment 84-99 Evo Big Twin; 86-22 X...

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£12.30
£12.30 - £12.30
£12.30
£11.71
£11.71 - £11.71
£11.71
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£24.58
£24.58 - £24.58
£24.58
£23.40
£23.40 - £23.40
£23.40

Cometic Right Rocker Cover Gasket. SLS .020" – 1984–1999 Evo Big Twin; 1986–2022 XL…

Only 2 left!

Cometic Right Rocker Cover Gasket. SLS .020" – 1984–1999 Evo Big Twin; 1986–2022 XL… .020" thick. Standard thickness is .020". SLS (Single-Layer-St...

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£24.58
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£24.58
£23.40
£23.40 - £23.40
£23.40
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£21.56
£21.56 - £21.56
£21.56
£20.53
£20.53 - £20.53
£20.53

Cometic Middle Rocker Cover Gasket. Rubber – 1984–1999 Evo Big Twin; 1986–2006 XL…

Only 2 left!

Cometic Middle Rocker Cover Gasket. Rubber – 1984–1999 Evo Big Twin; 1986–2006 XL… OEM replacement reference 17358-84A Fitment 84-99 Evo Big Twin; ...

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£21.56
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£21.56
£20.53
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£20.53
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£33.21
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£33.21
£31.61
£31.61 - £31.61
£31.61

Cometic Lower Rocker Cover Gasket. Cork – 1984–1991 Big Twin

Only 2 left!

Cometic Lower Rocker Cover Gasket. Cork – 1984–1991 Big Twin OEM replacement reference 17355-84. Fitment 84-91 Big Twin (NU) Product Details Bran...

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£33.21
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£33.21
£31.61
£31.61 - £31.61
£31.61
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£33.21
£33.21 - £33.21
£33.21
£31.61
£31.61 - £31.61
£31.61

Cometic Lower Rocker Cover Gasket. Rubber – 1984–1991 Big Twin

Only 2 left!

Cometic Lower Rocker Cover Gasket. Rubber – 1984–1991 Big Twin Used between the rocker covers. OEM replacement reference 17355-84A Fitment 84-91 Bi...

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£33.21
£33.21 - £33.21
£33.21
£31.61
£31.61 - £31.61
£31.61
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£33.21
£33.21 - £33.21
£33.21
£31.61
£31.61 - £31.61
£31.61

Cometic Upper Rocker Cover Gasket. Cork – 1984–1991 Big Twin

Only 2 left!

Cometic Upper Rocker Cover Gasket. Cork – 1984–1991 Big Twin OEM replacement reference 17356-84. Fitment 84-91 Big Twin (NU) Product Details Bran...

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£33.21
£33.21 - £33.21
£33.21
£31.61
£31.61 - £31.61
£31.61
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£33.21
£33.21 - £33.21
£33.21
£31.61
£31.61 - £31.61
£31.61

Cometic Upper Rocker Cover Gasket. Rubber – 1984–1991 Big Twin

Only 2 left!

Cometic Upper Rocker Cover Gasket. Rubber – 1984–1991 Big Twin Used between the rocker covers. OEM replacement reference 17356-84A Fitment 84-91 Bi...

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£33.21
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£33.21
£31.61
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£31.61
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