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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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James Gaskets Washer Spring Cover – 1939–1948 74" & 80" Flathead

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James Gaskets Washer Spring Cover – 1939–1948 74" & 80" Flathead .020" paper washer. OEM replacement reference 18259-39; 175-39C. Fitment 39-48...

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James Gaskets O-ring Clutch Gear – 1967–1970 XLH; 1970 XLCH

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James Gaskets O-ring Clutch Gear – 1967–1970 XLH; 1970 XLCH In transmission. OEM replacement reference 11119. Fitment 67-70 XLH; 1970 XLCH (NU) Pro...

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£23.49
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James Gaskets Washer Valve Spring Cover. Lower – 1939–1948 74" & 80" Flathead

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James Gaskets Washer Valve Spring Cover. Lower – 1939–1948 74" & 80" Flathead Cork washer. OEM replacement reference 18257-39; 175-39A Fitment ...

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£23.17

James Gaskets Washer Valve Spring Cover. Upper – 1939–1948 74" & 80" Flathead

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James Gaskets Washer Valve Spring Cover. Upper – 1939–1948 74" & 80" Flathead Cork washer. OEM replacement reference 18245-39; 173-39A. Fitment...

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James Gaskets Valve Guide Gasket – 1938–1973 45" (750cc) Flathead

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James Gaskets Valve Guide Gasket – 1938–1973 45" (750cc) Flathead OEM replacement reference 18198-38; 167-38. Fitment 38-73 45" (750cc) Flathead (N...

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£23.18
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James Gaskets Cylinder Base Gasket FR/RR. .020" Paper – 1929–1973 45" (750cc) Flathead

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James Gaskets Cylinder Base Gasket FR/RR. .020" Paper – 1929–1973 45" (750cc) Flathead Front/rear. .020" thick fiber reinforced paper. Final crush ...

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£22.86
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£25.68
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£25.32
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£25.32

James Gaskets Gasket Transmission Top Cover. .020" Paper – 1941–1973 45" Flathead & Servi-Car

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James Gaskets Gasket Transmission Top Cover. .020" Paper – 1941–1973 45" Flathead & Servi-Car .020" fiber reinforced paper. OEM replacement ref...

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£25.32
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£10.32
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£9.83
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£9.83

James Gaskets Point Cover Gasket. .031" Paper – 1970–1999 Evo Big Twin; 1971–2003 XL…

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James Gaskets Point Cover Gasket. .031" Paper – 1970–1999 Evo Big Twin; 1971–2003 XL… .031" thick paper. With 2 holes. OEM replacement reference 32...

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James Gaskets Cylinder Base Gaskets FR/RR. .031" Paper – 1936–1947 61"/74" Knucklehead; 1937–1948…

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James Gaskets Cylinder Base Gaskets FR/RR. .031" Paper – 1936–1947 61"/74" Knucklehead; 1937–1948… Front & rear. .031" thick fiber reinforced p...

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£14.53
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James Gaskets Gasket Tappet Block. FR/RR – 1952–1956 K; KH Flathead

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James Gaskets Gasket Tappet Block. FR/RR – 1952–1956 K; KH Flathead Tappet guide gasket; fits front & rear tappet guides. OEM replacement refer...

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£14.33
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£14.33
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£13.54
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£13.35

James Gaskets Gasket Starter Solenoid. Foam – L1965–1982 FL; 71-E84 FX; 1967–1980 XL…

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James Gaskets Gasket Starter Solenoid. Foam – L1965–1982 FL; 71-E84 FX; 1967–1980 XL… Foam seal. OEM replacement reference 60645-65 Fitment L65-82 ...

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£12.77
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James Gaskets Gasket Speedo Drive Unit – Speedometer: 1954–1956 KH; 1957–1972 XL…

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James Gaskets Gasket Speedo Drive Unit – Speedometer: 1954–1956 KH; 1957–1972 XL… Fiber washer. Multiple applications. Used for speedometer and tac...

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£12.59
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James Gaskets Gasket Speedometer Drive Unit. .020" Paper – 1936–1984 4-Speed Big Twin with…

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James Gaskets Gasket Speedometer Drive Unit. .020" Paper – 1936–1984 4-Speed Big Twin with… .020" fiber reinforced paper. OEM replacement reference...

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£10.77
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£10.62
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£81.04

James Gaskets Pushrod Cover Seals. Cork – 48-E79 Big Twin: Upper & Middle.…

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James Gaskets Pushrod Cover Seals. Cork – 48-E79 Big Twin: Upper & Middle.… Cork seals. On 36-47 Knuckle and 57-E79 XL Sportsters the small sea...

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£26.43
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James Gaskets Gasket Oil Tank Filter Cap – 1952–1956 K; KH; 1957–1966 XL Sportster…

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James Gaskets Gasket Oil Tank Filter Cap – 1952–1956 K; KH; 1957–1966 XL Sportster… Rubber. OEM replacement reference 62628-52 Fitment 52-56 K; KH;...

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£26.07
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James Gaskets Oil Seal Clutch Release Rod – 1953–1956 K; KH; 1957–1970 XL Sportster

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James Gaskets Oil Seal Clutch Release Rod – 1953–1956 K; KH; 1957–1970 XL Sportster OEM replacement reference 37339-53 Fitment 53-56 K; KH; 57-70 X...

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£15.83
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James Gaskets Gasket Countershaft End Plate. .031" Paper – 1936–1964 Big Twin; 1936–1948 74"…

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James Gaskets Gasket Countershaft End Plate. .031" Paper – 1936–1964 Big Twin; 1936–1948 74"… .031" fiber reinforced paper. OEM replacement referen...

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£15.61
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£11.54
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£11.38
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£11.38

James Gaskets Gasket Speedometer Drive Hole Plate – 1936–1984 4-Speed Big Twin with…

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James Gaskets Gasket Speedometer Drive Hole Plate – 1936–1984 4-Speed Big Twin with… .031" fiber reinforced paper. OEM replacement reference 35607-...

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£11.38
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£22.29
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£21.98
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£21.98

James Gaskets Oil Pump Body to Inner Cover Gasket. Paper – 1952–1956 K; KH; 57-E62 & 1972–1976 XL…

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James Gaskets Oil Pump Body to Inner Cover Gasket. Paper – 1952–1956 K; KH; 57-E62 & 1972–1976 XL… Fiber reinforced paper. OEM replacement refe...

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£22.29
£21.98
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£21.98
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£89.91 - £89.91
£89.91
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£90.60

James Gaskets Gasket Primary Cover. .062" Paper – 1952–1956 K; KH; 1957–1969 XLH; XLCH

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James Gaskets Gasket Primary Cover. .062" Paper – 1952–1956 K; KH; 1957–1969 XLH; XLCH .062" thick fiber reinforced paper. OEM replacement referenc...

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James Gaskets Gasket Primary Cover. .031" Paper – 1952–1956 K; KH; 1957–1969 XLH; XLCH

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James Gaskets Gasket Primary Cover. .031" Paper – 1952–1956 K; KH; 1957–1969 XLH; XLCH .031" thick fiber reinforced paper. OEM replacement referenc...

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£56.91
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£17.92
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James Gaskets Cylinder Base Gaskets FR/RR. .031" Paper – 1957–1971 XL900

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James Gaskets Cylinder Base Gaskets FR/RR. .031" Paper – 1957–1971 XL900 Front & rear. .031" thick fiber reinforced paper. Final crush .025". O...

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£17.67
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James Gaskets Cylinder Base Gaskets FR/RR. .031" Paper – 1952–1956 K; KH Model Flatheads

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James Gaskets Cylinder Base Gaskets FR/RR. .031" Paper – 1952–1956 K; KH Model Flatheads Front & rear. .031" thick fiber reinforced paper. Fina...

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£22.86
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James Gaskets Cylinder Base Gasket FR/RR. .031" Paper – 1972–1985 XL1000

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James Gaskets Cylinder Base Gasket FR/RR. .031" Paper – 1972–1985 XL1000 Fits front & rear. .031" thick fiber reinforced paper. Final crush .02...

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