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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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£197.26
£197.26 - £197.26
£197.26
£172.73
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£172.73

Jims Powerglide Steady Roll Tappet. Standard .8420" O.D – 1999–2017 Twin Cam; 2017–2026 M8…

Only 1 left!

Jims Powerglide Steady Roll Tappet. Standard .8420" O.D – 1999–2017 Twin Cam; 2017–2026 M8… This is the Powerglide with a failsafe solid bronze all...

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£197.26
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£197.26
£172.73
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£172.73
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£155.81
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£155.81
£138.51
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£138.51

Jims Powerglide Steady Roll Tappet. Standard .8425" O.D – 1984–1999 Evo Big Twin; 1986–1990 XL…

Only 1 left!

Jims Powerglide Steady Roll Tappet. Standard .8425" O.D – 1984–1999 Evo Big Twin; 1986–1990 XL… This is the Powerglide with a failsafe solid bronze...

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£155.81
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£155.81
£138.51
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£138.51
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£382.81 - £382.81
£382.81
£385.74
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£385.74

Jims Upper Valve Spring Collars. Titanium – 2005–2017 Twin Cam A/B; 2004–2022 XL…

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Jims Upper Valve Spring Collars. Titanium – 2005–2017 Twin Cam A/B; 2004–2022 XL… Compatible with 1.185" - 1.589" spring diameter. 10° OEM angled. ...

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£382.81 - £382.81
£382.81
£385.74
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£385.74
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£12.72
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£12.72
£12.11
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£12.11

MCS Washer, Headbolt Long – 1932–1973 G; GE 45" SV (2 USED)

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MCS Washer, Headbolt Long – 1932–1973 G; GE 45" SV (2 USED) Washer, headbolt long Fitment 32-73 G; GE 45" SV (NU) (2 USED) Product Details Brand:...

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£12.72
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£12.72
£12.11
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£18.05
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£18.05
£15.10
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£15.10

Gardner-Westcott Head Bolt/Cyl. Base Washer, Chrome – 1936–1984 Big Twin

Out of stock

Gardner-Westcott Head Bolt/Cyl. Base Washer, Chrome – 1936–1984 Big Twin 7/16" ID x 3/4" OD x 3/32" thick (10 used) Fitment 36-84 Big Twin (NU) Pro...

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£18.05
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£18.05
£15.10
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£15.10
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£150.38
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£150.38
£129.06
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£129.06

MCS OEM Style 93-99 Cam Cover. Chrome – 1993–1999 Big Twin

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MCS OEM Style 93-99 Cam Cover. Chrome – 1993–1999 Big Twin Cast aluminum gear cover / nose cone. Fitment 93-99 Big Twin (Excl. Twin Cam) (NU) Produ...

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£150.38
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£150.38
£129.06
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£129.06
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£20.62
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£20.62
£18.36
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£18.36

Gardner-Westcott Rocker Shaft End Nut Set. Acorn Style, Chrome – 1966–1984 Shovelhead; 1957–1985 XL…

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Gardner-Westcott Rocker Shaft End Nut Set. Acorn Style, Chrome – 1966–1984 Shovelhead; 1957–1985 XL… Chrome plated. Custom Acorn nut styled. Includ...

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£20.62
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£20.62
£18.36
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£18.36
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£23.03
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£23.03
£21.18
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£21.18

Jims Dowel Pin. Case to Case & Case to Cylinder – Cylinder to Case: 1984–1999 Big Twin.…

Only 1 left!

Jims Dowel Pin. Case to Case & Case to Cylinder – Cylinder to Case: 1984–1999 Big Twin.… Steel. 0.250" diameter x 0.500" long. Replaces OEM 358...

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£23.03
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£21.18
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£21.18
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£27.16
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£27.16
£25.86
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£25.86

MCS Nut, Pinion and Sprocket Shaft – 54-E81 XL Sportster

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MCS Nut, Pinion and Sprocket Shaft – 54-E81 XL Sportster 11/16-18 X 1/4 X 1 3/16 hex. Used on flywheel side. Repl. 8011. Fitment 54-E81 XL Sportste...

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£27.16
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£27.16
£25.86
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£25.86
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£14.53
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£14.53
£13.83
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£13.83

MCS Sprocket Shaft Bearing Spacer Shim .112" – 1977–2003 XL Sportster

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MCS Sprocket Shaft Bearing Spacer Shim .112" – 1977–2003 XL Sportster Used to correct pre-load on the sprocket shaft bearing. Note: See 965410 for ...

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£14.53
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£14.53
£13.83
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£13.83
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£14.53
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£14.53
£13.83
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£13.83

MCS Sprocket Shaft Bearing Spacer Shim .104" – 1977–2003 XL Sportster

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MCS Sprocket Shaft Bearing Spacer Shim .104" – 1977–2003 XL Sportster Used to correct pre-load on the sprocket shaft bearing. Note: See 965410 for ...

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£14.53
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£14.53
£13.83
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£13.83
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£262.99
£268.94
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£268.94

EMD WTF ''XR Style'' Rocker Cover. Black Cut – 2004–2022 XL Sportster

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EMD WTF ''XR Style'' Rocker Cover. Black Cut – 2004–2022 XL Sportster Black Cut finish. Esteves Motorcycle Design designed these rockers covers as ...

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£262.99 - £262.99
£262.99
£268.94
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£268.94
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£235.09
£240.41
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£240.41

EMD WTF ''XR Style'' Rocker Cover. Raw – 1986–2003 XL Sportster

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EMD WTF ''XR Style'' Rocker Cover. Raw – 1986–2003 XL Sportster Raw finished. Esteves Motorcycle Design designed these rockers covers as back-to-ba...

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£235.09 - £235.09
£235.09
£240.41
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£240.41
£270.66 - £270.66
£270.66
£276.78
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£276.78

EMD WTF ''Iron Style'' Rocker Cover. Black Cut – 2004–2022 XL Sportster

Only 1 left!

EMD WTF ''Iron Style'' Rocker Cover. Black Cut – 2004–2022 XL Sportster Sold each; order two for one engine. Black Cut finish. Esteves Motorcycle D...

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£270.66 - £270.66
£270.66
£276.78
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£276.78
£235.09 - £235.09
£235.09
£240.41
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£240.41

EMD WTF ''Shovel Style'' Rocker Cover. Raw – 1984–1999 Evo Big Twin

Only 1 left!

EMD WTF ''Shovel Style'' Rocker Cover. Raw – 1984–1999 Evo Big Twin Sold each; order two for one engine. Raw finished. Esteves Motorcycle Design de...

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£235.09 - £235.09
£235.09
£240.41
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£240.41
£262.99 - £262.99
£262.99
£268.94
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£268.94

EMD WTF ''Shovel Style'' Rocker Cover. Black – 1986–2003 XL Sportster

Only 1 left!

EMD WTF ''Shovel Style'' Rocker Cover. Black – 1986–2003 XL Sportster Sold each; order two for one engine. Black finish. Esteves Motorcycle Design ...

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£262.99 - £262.99
£262.99
£268.94
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£268.94
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£298.85
£305.61
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£305.61

EMD Cam Cover ''Snatch''. Black – 2001–2017 Twin Cam; S&S T-series Engines

Only 1 left!

EMD Cam Cover ''Snatch''. Black – 2001–2017 Twin Cam; S&S T-series Engines With a full black finish. Cast aluminum cam gear cover for the right...

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£298.85 - £298.85
£298.85
£305.61
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£305.61
£239.09 - £239.09
£239.09
£244.49
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£244.49

EMD Cam Cover ''Snatch''. Raw Finish – 2001–2017 Twin Cam; S&S T-series Engines

Only 1 left!

EMD Cam Cover ''Snatch''. Raw Finish – 2001–2017 Twin Cam; S&S T-series Engines Raw aluminum finish. Cast aluminum cam gear cover for the right...

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£239.09 - £239.09
£239.09
£244.49
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£368.58
£376.91
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£376.91

EMD Sportster Ribster Rocker Cover Set. Semi-Polished – 1986–2003 XL Sportster

Only 1 left!

EMD Sportster Ribster Rocker Cover Set. Semi-Polished – 1986–2003 XL Sportster Vintage semi-polished finish. Sold in pairs for one engine. Direct r...

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£368.58 - £368.58
£368.58
£376.91
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£376.91
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£53.22
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£53.22
£48.98
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£48.98

Sonnax Pinion Shaft Bearing. Blue – 1987–1999 Big Twin

Only 1 left!

Sonnax Pinion Shaft Bearing. Blue – 1987–1999 Big Twin Sold with the OEM color code. Replacement late style right side crankcase bearing. Note: Wil...

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£53.22
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£53.22
£48.98
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£48.98
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£36.25
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£36.25
£34.51
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£34.51

MCS Pinion Shaft Bearing. Green – 1987–1999 Big Twin

Only 1 left!

MCS Pinion Shaft Bearing. Green – 1987–1999 Big Twin Sold with the OEM color code. Replacement late style right side crankcase bearing. (Torrington...

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£36.25
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£36.25
£34.51
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£34.51
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£618.49 - £618.49
£618.49
£632.47
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£632.47

Jims Forceflow Cylinder Head Cooler. Silver – 1999–2017 Twin Cam; Custom Applications

Out of stock

Jims Forceflow Cylinder Head Cooler. Silver – 1999–2017 Twin Cam; Custom Applications The Forceflow cylinder head cooler incorporates a high power ...

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£618.49 - £618.49
£618.49
£632.47
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£632.47
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£616.66
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£616.66

Jims Forceflow Cylinder Head Cooler. Black – 1999–2017 Twin Cam; Custom Applications

Only 1 left!

Jims Forceflow Cylinder Head Cooler. Black – 1999–2017 Twin Cam; Custom Applications The Forceflow cylinder head cooler incorporates a high power f...

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£603.03 - £603.03
£603.03
£616.66
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£616.66
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£43.18
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£43.18
£42.57
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£42.57

Jims Camshaft Needle Bearing. Inner – 2006–2017 Dyna; 2007–2025 Softail…

Only 1 left!

Jims Camshaft Needle Bearing. Inner – 2006–2017 Dyna; 2007–2025 Softail… Full needle style bearing. 2 bearings used for Twin Cam. 1 bearing used fo...

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£43.18
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£42.57
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£42.57
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