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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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£113.96
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Cometic Gasket Primary Cover. .060" AFM – 1977–1990 XL Sportster

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Cometic Gasket Primary Cover. .060" AFM – 1977–1990 XL Sportster .060" AFM (Aluminum Foamet Material). OEM replacement reference 34955-75. Cometic'...

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£14.91
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£14.19
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£14.19

Cometic Gasket Foot Peg Stud – 1977–1990 XL Sportster

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Cometic Gasket Foot Peg Stud – 1977–1990 XL Sportster Used on inside of inner primary cover. OEM replacement reference 34624-77. Fitment 77-90 XL S...

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£9.69
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£8.92
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Cometic O-ring Derby Cover – 1991–1993 XL Sportster

Out of stock

Cometic O-ring Derby Cover – 1991–1993 XL Sportster O-ring clutch inspection cover. OEM replacement reference 11187 Fitment 91-93 XL Sportster (NU)...

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£8.92
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£8.01
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£8.01
£7.37
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£7.37

Cometic O-ring Filler Cap Primary / Swingarm – L1978–1990 XL Sportster : Primary Oil…

Out of stock

Cometic O-ring Filler Cap Primary / Swingarm – L1978–1990 XL Sportster : Primary Oil… Multi-application. OEM replacement reference 11139. Fitment L...

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£7.37
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£7.37
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£1.39
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£1.39
£1.20
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£1.20

Cometic Pushrod Anti-rotation Pin – 1991–1999 XL Sportster

Out of stock

Cometic Pushrod Anti-rotation Pin – 1991–1999 XL Sportster 4 used. OEM replacement reference 11176. Fitment 91-99 XL Sportster (NU) Product Details...

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£20.52
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£20.52
£19.53
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£19.53

Cometic O-ring Pushrod Cover. Lower – 1991–2003 XL Sportster

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Cometic O-ring Pushrod Cover. Lower – 1991–2003 XL Sportster 4 used. OEM replacement reference 17944-89. Fitment 91-03 XL Sportster (NU) Product De...

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£19.53
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£6.44
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£6.44
£5.92
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£5.92

Cometic Generator Mount Gasket – 1958–1969 FL; 58-E84 XL Sportster. With…

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Cometic Generator Mount Gasket – 1958–1969 FL; 58-E84 XL Sportster. With… OEM replacement reference 30143-58. Fitment 58-69 FL; 58-E84 XL Sportster...

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£5.92
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£5.92
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£12.30
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£12.30
£11.71
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£11.71

Cometic Generator Mount Gasket – 1930–1957 FL; XL Sportster; 45" Flathead

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Cometic Generator Mount Gasket – 1930–1957 FL; XL Sportster; 45" Flathead OEM replacement reference 30143-30; 1527-30. Fitment 30-57 FL; XL Sportst...

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£12.30
£11.71
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£11.71
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£10.92
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£10.05
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Cometic Rocker Cover Oil Line – 1966–1984 Big Twin; 1957–1985 XL…

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Cometic Rocker Cover Oil Line – 1966–1984 Big Twin; 1957–1985 XL… Replacement oil seals only. OEM replacement reference 63529-57. Fitment 66-84 Big...

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£10.92
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£10.05
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£15.38
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£14.65
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£14.65

Cometic Oil Pump Body to Cover Gasket. .010" Fiber – 68-E80 Big Twin

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Cometic Oil Pump Body to Cover Gasket. .010" Fiber – 68-E80 Big Twin .010" rubberized fiber. OEM replacement reference 26258-68B. Fitment 68-E80 Bi...

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£14.65
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£14.65
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£9.69
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£8.92
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£8.92

Cometic Oil Pump Body to Cover Gasket – L1950–1967 Big Twin

Out of stock

Cometic Oil Pump Body to Cover Gasket – L1950–1967 Big Twin Fiber. OEM replacement reference 26257-50A. Fiber is a premium hi-temperature; hi-densi...

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£9.69
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£8.92

Cometic Oil Pump Body to Case Gaskets. Fiber – 68-E80 Big Twin

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Cometic Oil Pump Body to Case Gaskets. Fiber – 68-E80 Big Twin .010" rubberized fiber. OEM replacement reference 26246-68; 26246-68A. Fiber is a pr...

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£8.92
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£10.17
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£10.17
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Cometic Oil Pump Body to Case Gasket. Fiber – 1941–1967 Big Twin

Out of stock

Cometic Oil Pump Body to Case Gasket. Fiber – 1941–1967 Big Twin OEM replacement reference 26245-41 / 589-41. Fiber is a premium hi-temperature; hi...

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£9.36
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£10.92
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£10.05
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Cometic Oil Pump Side Mount Gasket. Fiber – 1937–1959 45" Flathead W; WL; WLA; G…

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Cometic Oil Pump Side Mount Gasket. Fiber – 1937–1959 45" Flathead W; WL; WLA; G… Fiber. OEM replacement reference 26244-37 / 589-37. Fitment 37-59...

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£10.05
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£10.05
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£15.38
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£15.38
£14.65
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£14.65

Cometic Oil Pump Relief Valve Plug Gasket – 54-E78 & L1978–1980 Big Twin

Out of stock

Cometic Oil Pump Relief Valve Plug Gasket – 54-E78 & L1978–1980 Big Twin 1 used. Fiber. OEM replacement reference 26231-78. Note: Can also be u...

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£14.65
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£14.65
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£37.18
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£37.18
£35.40
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£35.40

Cometic Exhaust Gaskets. Fire-Ring – 1966–1984 Shovel

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Cometic Exhaust Gaskets. Fire-Ring – 1966–1984 Shovel Metal covered paper gasket with copper fire ring. OEM replacement reference 65834-68A; 65835-...

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£37.18
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£37.18
£35.40
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£35.40
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£22.97
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£22.97
£21.87
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£21.87

Cometic Manifold Intake Seals. Band Style – L1978–1984 Big Twin; 1979–1985 XL…

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Cometic Manifold Intake Seals. Band Style – L1978–1984 Big Twin; 1979–1985 XL… Used between manifold and cylinder head. OEM replacement reference 2...

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£22.97
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£22.97
£21.87
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£21.87
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£8.01
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Cometic O-ring Intake Manifold / Solenoid – Intake: 1957–1978 XL Sportster; 55-E78…

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Cometic O-ring Intake Manifold / Solenoid – Intake: 1957–1978 XL Sportster; 55-E78… Used between the manifold and cylinder head or for the starter ...

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£8.01
£7.37
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£7.37
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£8.01
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Cometic Gasket Speedometer Drive Unit. .020" Fiber – 1936–1984 4-Speed Big Twin with…

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Cometic Gasket Speedometer Drive Unit. .020" Fiber – 1936–1984 4-Speed Big Twin with… .020" Fiber. OEM replacement reference 67141-36 (11140-36)Com...

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£8.01
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£8.01
£7.37
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£7.37
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£13.86
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£13.86
£13.20
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£13.20

Cometic Gasket Transmission Oil Spout (Filler). Fiber – 1991–1998 Dyna

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Cometic Gasket Transmission Oil Spout (Filler). Fiber – 1991–1998 Dyna Fiber. OEM replacement reference 62423-90; 62423-90A. Cometic''s fiber gaske...

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£13.86
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£13.86
£13.20
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£13.20
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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. Fiber – 1980–1986 FLT/Touring; FXR

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Cometic Gasket Transmission End Cover. Fiber – 1980–1986 FLT/Touring; FXR Fiber material. Used between transmission bearing housing and transmissio...

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£20.26
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£20.26
£19.29
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£19.29
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£35.60
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£35.60
£33.89
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£33.89

Cometic Transmission Bearing Housing Gasket. Fiber – 1980–1999 5-Speed Big Twin

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Cometic Transmission Bearing Housing Gasket. Fiber – 1980–1999 5-Speed Big Twin Fiber material. OEM replacement reference 35652-79A; 35652-79B. Fib...

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£35.60
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£35.60
£33.89
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£33.89
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£38.69
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£36.83
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£36.83

Cometic Gasket Transmission Top Cover. .031" Fiber – 1991–1998 Dyna

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Cometic Gasket Transmission Top Cover. .031" Fiber – 1991–1998 Dyna .031" fiber. OEM replacement reference 34917-90A; 34917-90B. Cometic''s fiber g...

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£36.83
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£36.83
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£33.28
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£33.28
£31.68
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£31.68

Cometic Gasket Transmission Top Cover. Fiber – 1980–1985 FLT/Touring; FXR

Out of stock

Cometic Gasket Transmission Top Cover. Fiber – 1980–1985 FLT/Touring; FXR Fiber. OEM replacement reference 34904-79. Cometic''s fiber gaskets are m...

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£31.68
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£31.68
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