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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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£9.85
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£9.37

MCS Thrust Washer Camshaft. .085" – 1936–1999 Big Twin

Only 1 left!

MCS Thrust Washer Camshaft. .085" – 1936–1999 Big Twin Shims used to achieve correct cam end-play. Approx. dimensions: 1.062" OD; .820" ID. Fitment...

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£9.85
£9.37
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£9.37
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£27.82
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£27.40
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£27.40

Jims Needle Bearing Camshaft. ''Full Needle'' – 1958–1999 Big Twin

Only 4 left!

Jims Needle Bearing Camshaft. ''Full Needle'' – 1958–1999 Big Twin When still present it is advised to replace the low cost OEM needle bearing in 9...

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£27.82
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£27.82
£27.40
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£27.40
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£22.34 - £22.34
£22.34
£25.93
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£25.93

Jims Bushing Idler / Circuit Breaker Gear – 1932–1969 OHV Big Twin; 1930–1973 45"…

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Jims Bushing Idler / Circuit Breaker Gear – 1932–1969 OHV Big Twin; 1930–1973 45"… Bushing for idler & circuit breaker gear. OEM style replacem...

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£22.34 - £22.34
£22.34
£25.93
£25.93 - £25.93
£25.93
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£48.22
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£48.22
£44.14
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£44.14

Jims Shaft Idler Gear – 1936–1969 Big Twin

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Jims Shaft Idler Gear – 1936–1969 Big Twin Stock style replacement part for OEM 25791-36. Fitment 36-69 Big Twin (NU) Product Details Brand: Jims...

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£48.22
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£48.22
£44.14
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£44.14
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£143.35
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£143.35
£141.35
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£141.35

Gardner-Westcott Side Cover Mount Kit – 2006–2017 Dyna

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Gardner-Westcott Side Cover Mount Kit – 2006–2017 Dyna Chrome allen; cam/prim/derby/insp/transm end Fitment 06-17 Dyna (excl. models with S&S c...

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£143.35
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£143.35
£141.35
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£141.35
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£36.74
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£36.74
£33.81
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£33.81

Gardner-Westcott Oil Pump Mount Kit. Chrome Allen – 1998–2022 XL Sportster

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Gardner-Westcott Oil Pump Mount Kit. Chrome Allen – 1998–2022 XL Sportster Gardner-Westcott, oil pump mount kit. Chrome allen Fitment 98-22 XL Spor...

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£36.74
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£36.74
£33.81
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£33.81
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£159.77
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£159.77
£157.54
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£157.54

Jims Pinion Shaft 58-72 B.T – 1958–1965 Panhead; 1966–1972 Shovelhead

Only 1 left!

Jims Pinion Shaft 58-72 B.T – 1958–1965 Panhead; 1966–1972 Shovelhead Use 23985-54 key (MCS 517955) for gear side; use 23985-12 key (MCS 517945) fo...

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£159.77
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£159.77
£157.54
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£157.54
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£168.49
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£168.49
£166.14
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£166.14

Jims Pinion Shaft 54-57 B.T – 1954–1957 Big Twin

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Jims Pinion Shaft 54-57 B.T – 1954–1957 Big Twin Use 23985-12 key (MCS 517945). Use 24023-36 JIMS nut (MCS 978258) for flywheel side and 24023-54 J...

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£168.49
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£168.49
£166.14
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£166.14
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£51.51
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£51.51
£47.41
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£47.41

Gardner-Westcott Cam & Sprocket Cover Mount Kit. Allen – 1991–2003 XL Sportster

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Gardner-Westcott Cam & Sprocket Cover Mount Kit. Allen – 1991–2003 XL Sportster Cam & sprocket cover mount kit. Allen Fitment 91-03 XL Spor...

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£51.51
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£51.51
£47.41
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£47.41
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£192.05
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£192.05
£189.37
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£189.37

Jims Pinion Shaft 39-53 B.T – 1939–1953 Big Twin

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Jims Pinion Shaft 39-53 B.T – 1939–1953 Big Twin Standard O.D. is .1.000". Left hand screw (OEM 24020-51 / MCS 924020) included. Use 24023-36 JIMS ...

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£192.05
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£192.05
£189.37
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£189.37
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£197.67
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£197.67
£194.91
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£194.91

Jims Pinion Shaft. 37-73 45" Flatheads – 1937–1973 45" (750cc) Flatheads

Only 1 left!

Jims Pinion Shaft. 37-73 45" Flatheads – 1937–1973 45" (750cc) Flatheads Use 23985-12 key (MCS 517945) and 7974 nut (MCS 981184). Side oiling. Repl...

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£197.67
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£197.67
£194.91
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£194.91
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£257.98
£259.96
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£259.96

Jims Pinion Shaft. 74"/80" Flatheads – 1937–1948 74" (1200cc) and 80" (1300cc)…

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Jims Pinion Shaft. 74"/80" Flatheads – 1937–1948 74" (1200cc) and 80" (1300cc)… Left hand screw (OEM 24020-51 / MCS 924020) included. Use 24023-36 ...

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£257.98
£259.96
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£259.96
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£238.57
£240.40
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£240.40

Jims Pinion Shaft. L81-85 XL – L1981–1985 XL Sportster

Only 1 left!

Jims Pinion Shaft. L81-85 XL – L1981–1985 XL Sportster Use 11218 key (MCS 517951). Use 23902-81 nut (MCS 923902) on flywheel side and 7913 nut (MCS...

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£238.57 - £238.57
£238.57
£240.40
£240.40 - £240.40
£240.40
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£166.40
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£166.40
£164.08
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£164.08

Jims Pinion Shaft. 57-76 XL – 1957–1976 XL Sportster

Only 1 left!

Jims Pinion Shaft. 57-76 XL – 1957–1976 XL Sportster Use 23985-12 key (MCS 517945) and 8011 JIMS nut (MCS 989233). End oiling. Repl. 24005-57. Fitm...

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£166.40
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£166.40
£164.08
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£164.08
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£166.08
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£166.08
£163.76
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£163.76

Jims Sprocket Shaft. 70-71 B.T – 1970–1971 Big Twin with OEM Flywheels

Only 3 left!

Jims Sprocket Shaft. 70-71 B.T – 1970–1971 Big Twin with OEM Flywheels Fits with OEM flywheels. Sprocket shaft has keyway; use 23985-56 key (MCS 51...

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£166.08
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£166.08
£163.76
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£163.76
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£157.05
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£157.05
£154.86
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£154.86

Jims Sprocket Shaft. 65-69 B.T – 1965–1969 Big Twin

Only 1 left!

Jims Sprocket Shaft. 65-69 B.T – 1965–1969 Big Twin Sprocket shaft has keyway; use 23985-56 key (MCS 517960). Taper is 8-1/2°. Shaft is 3.75" long ...

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£157.05
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£157.05
£154.86
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£154.86
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£59.51
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£59.51
£58.68
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£58.68

Jims Oil Pump Drive Shaft Kit – 1936–1967 Big Twin

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Jims Oil Pump Drive Shaft Kit – 1936–1967 Big Twin Jims oil pump drive shaft kit Fitment 36-67 Big Twin (NU) Product Details Brand: Jims Categor...

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£59.51
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£59.51
£58.68
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£58.68
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£19.14
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£19.14
£17.27
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£17.27

MCS Sportster Rocker Box Oil Line Kit. Chrome – 1957–1985 XL Sportster

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MCS Sportster Rocker Box Oil Line Kit. Chrome – 1957–1985 XL Sportster Complete kit with seals and fittings. OEM style reproduction. Repl. 17324-57...

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£19.14
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£19.14
£17.27
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£17.27
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£157.05
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£157.05
£154.86
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£154.86

Jims Sprocket Shaft. 56-64 B.T – 1956–1964 Big Twin with OEM Flywheels

Only 1 left!

Jims Sprocket Shaft. 56-64 B.T – 1956–1964 Big Twin with OEM Flywheels Fits with OEM flywheels. Sprocket shaft has keyway; use 23985-56 key (MCS 51...

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£157.05
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£157.05
£154.86
£154.86 - £154.86
£154.86
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£106.15
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£106.15
£104.66
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£104.66

Jims Sprocket Shaft. 30-54 B.T – 1930–1954 OHV Big Twin and 1937–1948…

Only 3 left!

Jims Sprocket Shaft. 30-54 B.T – 1930–1954 OHV Big Twin and 1937–1948… Sprocket shaft has keyway; use 23985-12 key (MCS 517945). Use 24023-36 JIMS ...

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£106.15
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£106.15
£104.66
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£104.66
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£112.80
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£112.80
£111.22
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£111.22

Jims Sprocket Shaft. 45" Flathead – 1929–1973 45" (750cc) Flatheads

Only 3 left!

Jims Sprocket Shaft. 45" Flathead – 1929–1973 45" (750cc) Flatheads Sprocket shaft has keyway; use 23985-12 key (MCS 517945). Use 7974 nut (MCS 981...

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£112.80
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£112.80
£111.22
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£111.22
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£152.07
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£152.07
£149.94
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£149.94

Jims Sprocket Shaft. L81-85 XL – L1981–1985 XL Sportster

Only 3 left!

Jims Sprocket Shaft. L81-85 XL – L1981–1985 XL Sportster Sprocket shaft does not have keyway. Use 23902-81 nut (MCS 923902) on flywheel side. JIMS ...

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£152.07
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£152.07
£149.94
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£149.94
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£152.07
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£152.07
£149.94
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£149.94

Jims Sprocket Shaft. 77-E81 XL – 77-E81 XL Sportster

Only 3 left!

Jims Sprocket Shaft. 77-E81 XL – 77-E81 XL Sportster Sprocket shaft has keyway; use 23985-12 key (MCS 517945). Use nut (MCS 968011) on flywheel sid...

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£152.07
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£152.07
£149.94
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£149.94
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£75.61
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£75.61
£74.55
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£74.55

Jims Rocker Arm Bushing Set – 1984–2017 Big Twin; 1986–2022 XL…

Only 2 left!

Jims Rocker Arm Bushing Set – 1984–2017 Big Twin; 1986–2022 XL… Manufactured from solid bearing bronze bar. .555" I.D. Must be reamed to fit. Not s...

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£74.55
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£74.55
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