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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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Jims Camshaft Bushing, Inner. +.005". 36-57 OHV – 1936–1947 Knucklehead; 1948–1957 Panhead

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Jims Camshaft Bushing, Inner. +.005". 36-57 OHV – 1936–1947 Knucklehead; 1948–1957 Panhead 1.0040" outside diameter. Fitment 36-47 Knucklehead; 48-...

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£137.20
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Jims Pinion Shaft Bushing. Std. Size – 1958–1992 Big Twin with Slight…

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Jims Pinion Shaft Bushing. Std. Size – 1958–1992 Big Twin with Slight… Steel. In crankcase. Standard size is 2.1270". 360° oiling. Note: The 93-99 ...

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£44.35
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Jims Camshaft Bushing, Outer. +.005" OD – 1952–2022 K; XL Sportster: #1;3;4 Cam.…

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Jims Camshaft Bushing, Outer. +.005" OD – 1952–2022 K; XL Sportster: #1;3;4 Cam.… Used in the cam cover. Tech tip: Cam cover bushings are counted f...

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£166.08
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£163.76
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Jims Pinion Shaft Bushing. Std Size – 1955–1957 OHV Big Twin

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Jims Pinion Shaft Bushing. Std Size – 1955–1957 OHV Big Twin Steel. In crankcase. Standard O.D. is 2.0015". Fitment 55-57 OHV Big Twin (NU) Product...

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£181.05
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Jims Pinion Shaft Bushing. +.005" – 1940–1954 OHV Big Twin

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Jims Pinion Shaft Bushing. +.005" – 1940–1954 OHV Big Twin Steel. In crankcase. Standard O.D. is 2.0015". Fitment 40-54 OHV Big Twin (NU) Product D...

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£157.78
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Jims Pinion Shaft Bushing. Std. Size – 1940–1954 OHV Big Twin

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Jims Pinion Shaft Bushing. Std. Size – 1940–1954 OHV Big Twin Steel. In crankcase. 2.0015" O.D. Fitment 40-54 OHV Big Twin (NU) Product Details B...

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Jims Camshaft Bushing, Outer. STD – 1952–2022 K; XL Sportster: #1;3;4 Cam.…

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Jims Camshaft Bushing, Outer. STD – 1952–2022 K; XL Sportster: #1;3;4 Cam.… Outer diameter .9405". Used in the cam cover. Tech tip: Cam cover bushi...

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£48.99
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Jims Camshaft Bushing, Inner. STD. 36-57 OHV – 1936–1947 Knucklehead; 1948–1957 Panhead

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Jims Camshaft Bushing, Inner. STD. 36-57 OHV – 1936–1947 Knucklehead; 1948–1957 Panhead 1.0035" outside diameter. Fitment 36-47 Knucklehead; 48-57 ...

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£186.66
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Jims Pinion Shaft Bushing. +.005" – 1957–1976 XL Sportster

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Jims Pinion Shaft Bushing. +.005" – 1957–1976 XL Sportster Steel. In crankcase. Standard O.D. 1.7515". Fitment 57-76 XL Sportster (NU) Product Deta...

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£184.06
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£166.08
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£163.76
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£163.76

Jims Pinion Shaft Bushing. Std. Size – 1957–1976 XL Sportster

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Jims Pinion Shaft Bushing. Std. Size – 1957–1976 XL Sportster Steel. In crankcase. Standard O.D. 1.7515". Fitment 57-76 XL Sportster (NU) Product D...

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£46.73
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Jims Camshaft Bushing, Outer. +.005" OD – 1957–1990 XL Sportster; 1937–1973 45"…

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Jims Camshaft Bushing, Outer. +.005" OD – 1957–1990 XL Sportster; 1937–1973 45"… For #2 cam. Outer diameter 1.3780". Used in the cam cover. Oversiz...

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Jims Camshaft Bushing, Outer. STD – 1957–1990 XL Sportster; L1959–1973 45"…

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Jims Camshaft Bushing, Outer. STD – 1957–1990 XL Sportster; L1959–1973 45"… For #2 cam. Outer diameter 1.3775". Used in the cam cover. Tech tip: Ca...

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£229.43
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£229.43

Jims Pinion Shaft Kit. 73-E81 B.T – 73-E81 Shovelhead

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Jims Pinion Shaft Kit. 73-E81 B.T – 73-E81 Shovelhead End oiling. Same as MCS 518026 JIMS pinion shaft; but complete as kit. This kit includes all ...

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£229.43
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£159.77
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£157.54
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£157.54

Jims Pinion Shaft. 73-E81 B.T – 73-E81 Shovelhead

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Jims Pinion Shaft. 73-E81 B.T – 73-E81 Shovelhead Fits 73-E81 B.T. models. Use 23985-12 key (MCS 517945) for flywheel side and use 23985-54 key (MC...

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£157.54
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£23.68
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£22.54
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MCS Flywheel Thrust Washer Set, Steel (0.065" Thick) – 1929–1973 45" Flathead

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MCS Flywheel Thrust Washer Set, Steel (0.065" Thick) – 1929–1973 45" Flathead For use with steel retainers; fits between connecting rods and flywhe...

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MCS Flywheel Thrust Washers, Steel (0.60" Thick) – 1936–1941 61" Knucklehead; 1948–1952 61"…

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MCS Flywheel Thrust Washers, Steel (0.60" Thick) – 1936–1941 61" Knucklehead; 1948–1952 61"… For use with steel retainers; fits between connecting ...

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MCS Flywheel Thrust Washers, Steel (0.55" Thick) – 1936–1941 61" Knucklehead; 1948–1952 61"…

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MCS Flywheel Thrust Washers, Steel (0.55" Thick) – 1936–1941 61" Knucklehead; 1948–1952 61"… For use with steel retainers; fits between connecting ...

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£22.54
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£21.84
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MCS Flywheel Thrust Washer Set, Steel (.055" Thick) – 1941–1948 74" (1200cc) Knucklehead…

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MCS Flywheel Thrust Washer Set, Steel (.055" Thick) – 1941–1948 74" (1200cc) Knucklehead… For use with steel retainers; fits between connecting rod...

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£21.84
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£20.79
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£20.02
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MCS Flywheel Thrust Washer Set, Steel (0.72" Thick) – 1957–1971 XL Sportster

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MCS Flywheel Thrust Washer Set, Steel (0.72" Thick) – 1957–1971 XL Sportster For use with steel retainers; fits between connecting rods and flywhee...

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£20.02
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£19.07
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£7.22
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MCS Lock Kit, Crank Pin – 54-E81 Big Twin

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MCS Lock Kit, Crank Pin – 54-E81 Big Twin Lock kit, crank pin Fitment 54-E81 Big Twin (NU) Product Details Brand: MCS Category: MOTOR PARTS >...

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£6.88
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Jims 15-73 Tappet Adjusting Screw Kit – 1915-1973 45"; 74"; 80" Flatheads…

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Jims 15-73 Tappet Adjusting Screw Kit – 1915-1973 45"; 74"; 80" Flatheads… 9/32-32 threaded. Fits as stock replacement and all other tappets that a...

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Jims 57-85 Tappet Adjusting Screws – 1957–1985 XL Sportster with 9/32-32…

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Jims 57-85 Tappet Adjusting Screws – 1957–1985 XL Sportster with 9/32-32… With 5/16" ball-end. 9/32"-32 threaded. Fits JIMS; OEM 18508-52B and any ...

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£62.19
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£114.16
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Jims 36-52 Chromoly Tappet Adjusting Screw Kit – 1936–1947 Knucklehead; 1948–1952…

Out of stock

Jims 36-52 Chromoly Tappet Adjusting Screw Kit – 1936–1947 Knucklehead; 1948–1952… 4340 chromoly steel. With 3/8" ball end and 9/32"-32 threaded. O...

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£102.99
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Jims 4340 Chromoly Steel Tappet Screws. Special – 1936–1952 Knuckle; Panhead and All…

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Jims 4340 Chromoly Steel Tappet Screws. Special – 1936–1952 Knuckle; Panhead and All… 4340 chromoly steel. Screw has oil hole drilled through the c...

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£178.91
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