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Dyna – Engine

Browse engine selected for Harley-Davidson Dyna motorcycles. The selection includes options relating to engine components, subject to current availability. Each product page provides the application and specification details needed to choose the right option.

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£28.99
£28.99 - £28.99
£28.99
£27.71
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£27.71

MCS Bushing, Oil Pump Drive Shaft – 1936–1999 Big Twin

Low stock

Description OEM replacement reference 24641-36 Fitment 36-99 Big Twin (Excl. Twin Cam) (NU) Product Details Brand: MCS Category: MOTOR PARTS >...

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£28.99
£28.99 - £28.99
£28.99
£27.71
£27.71 - £27.71
£27.71
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£9.98
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£9.98
£9.22
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£9.22

Colony Oil Screen Kit – 1970–1999 Big Twin

Low stock

Description Includes the 24981-70 tappet oil screen and the 24982-70 oil screen spring. Fitment 70-99 Big Twin (Excl. Twin Cam) (NU) Product Detail...

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£9.98
£9.98 - £9.98
£9.98
£9.22
£9.22 - £9.22
£9.22
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£201.71
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£201.71
£176.63
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£176.63

S&S Pushrod Cover Kit (Excl. Retainers) – 1984–2025 Big Twin; 1986–2022 XL…

Low stock

Description Gloss black. Fits STD to +1.00" cylinder length. Includes inner & outer pushrod cover; springs; spring covers and seals (excl. reta...

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£201.71
£201.71 - £201.71
£201.71
£176.63
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£176.63
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£47.21
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£47.21
£43.63
£43.63 - £43.63
£43.63

Gardner-Westcott Rocker Box Top Bolt Kit. Buttonhead, Chrome – 1984–1999 Big Twin; 1986–2022 XL…

Low stock

Description Chrome plated buttonhead bolts. Includes washers. Fitment 84-99 Big Twin (Excl. Twin Cam); 86-22 XL Sportster (NU) Product Details Br...

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£47.21
£47.21 - £47.21
£47.21
£43.63
£43.63 - £43.63
£43.63
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£117.13 - £117.13
£117.13
£120.28
£120.28 - £120.28
£120.28

Dippert Evo B.t. Aluminium Pushrod Cover Set. Black – 1984–1999 Evo Big Twin

Out of stock

Description Black anodized. The High Tech sophisticated look is yours with these quality European made anodized pushrod covers. Kits consists of lo...

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£117.13 - £117.13
£117.13
£120.28
£120.28 - £120.28
£120.28
Sold out
£117.13 - £117.13
£117.13
£120.28
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£120.28

Dippert Twin Cam Aluminium Pushrod Cover Set. Black – 1999–2017 Twin Cam

Low stock

Description Black anodized. The High Tech sophisticated look is yours with these quality European made anodized pushrod covers. Kits consists of lo...

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£117.13 - £117.13
£117.13
£120.28
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£120.28
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£159.57
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£159.57
£158.02
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£158.02

Gardner-Westcott Big Twin Side Cover Mount Kit, Chr. Allen – 1999–2005 Dyna

Low stock

Description Cam; primary; derby; inspection; transmission end covers. Fitment 99-05 Dyna (NU) Product Details Brand: Gardner-Westcott Category: ...

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£159.57
£159.57 - £159.57
£159.57
£158.02
£158.02 - £158.02
£158.02
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£63.13
£63.13 - £63.13
£63.13
£60.36
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£60.36

Gardner-Westcott Big Twin Side Cover Mount Kit, Ss Allen – 1999–2005 Dyna

Low stock

Description Cam; primary; derby; inspection; transmission end covers. Fitment 99-05 Dyna (NU) Product Details Brand: Gardner-Westcott Category: ...

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£63.13
£63.13 - £63.13
£63.13
£60.36
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£60.36
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£77.40
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£77.40
£74.00
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£74.00

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

Low stock

Description Stainless steel. Cam; primary derby; inspection; transmission end covers. Fitment 06-17 Dyna (excl. models with A&S clutch) Product...

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£77.40
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£77.40
£74.00
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£74.00
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£21.81
£21.81 - £21.81
£21.81
£19.51
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£19.51

Gardner-Westcott Cam Cover Screw Kit, Chr. Allen – 1987–1999 Softail; FLT/Touring

Low stock

Description Cam cover screw kit, chr. allen Fitment 87-99 Softail; FLT/Touring (NU) (Excl. TC) Product Details Brand: Gardner-Westcott Category:...

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£21.81
£21.81 - £21.81
£21.81
£19.51
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£19.51
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£143.35
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£143.35
£141.95
£141.95 - £141.95
£141.95

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

Low stock

Description Chrome allen; cam/prim/derby/insp/transm end Fitment 06-17 Dyna (excl. models with S&S clutch) Product Details Brand: Gardner-Wes...

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£143.35
£143.35 - £143.35
£143.35
£141.95
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£141.95
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£33.67
£33.67 - £33.67
£33.67
£33.34
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£33.34

Ert Check Valve Repair Kit – 1970–1999 Big Twin

Out of stock

Description This kit is the one to fresh-up the check valve system and help prevent the oil tank draining into the crankcase. Complete kit includes...

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£33.67
£33.67 - £33.67
£33.67
£33.34
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£33.34
Sold out
£75.61 - £75.61
£75.61
£78.27
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£78.27

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

Low stock

Description Manufactured from solid bearing bronze bar. .555" I.D. Must be reamed to fit. Not slotted. Repl. 17429-91. Fitment 84-17 Big Twin (Excl...

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£75.61 - £75.61
£75.61
£78.27
£78.27 - £78.27
£78.27
£68.64 - £68.64
£68.64
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£68.64

MCS Head Bolt Bridge Cover Set. Smooth, Chrome – 1999–2017 Twin Cam

Low stock

Description Chrome plated aluminum construction. Slip-fit installation around the spark plug. These head bolt covers are designed to bridge the lar...

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£68.64 - £68.64
£68.64
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£68.64
£60.13 - £60.13
£60.13
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£60.13

MCS Head Bolt Bridge Cover Set. Finned, Black – 1999–2006 Carbureted Twin Cam

In stock

Description Aluminum construction. Slip-fit installation around the spark plug. These head bolt covers are designed to bridge the large and empty g...

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£60.13 - £60.13
£60.13
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£60.13
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£39.97
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£39.97
£37.69
£37.69 - £37.69
£37.69

Kibblewhite Kpmi, Twin Cam Compression Release Valve Set – 1999–2017 Twin Cam Style Engines

Low stock

Description High quality and M10x1 threaded. Easy electric starting of big and high compression motors. Push to activate and auto-close. With 5-7 N...

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£39.97
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£39.97
£37.69
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£37.69
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£18.97 - £18.97
£18.97
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£18.97

MCS Rocker Arm Bushings. 2pk – 1984–2017 Big Twin; 1986–2022 XL…

Low stock

Description 8 used in one engine. OEM style reproduction. Repl. 17429-91. Fitment 84-17 Big Twin (excl. M8); 86-22 XL Sportster; 08-12 XR1200; 91-1...

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£18.97 - £18.97
£18.97
£18.97 - £18.97
£18.97
£54.03 - £54.03
£54.03
£54.03 - £54.03
£54.03

MCS Head Bolt Bridge Cover Set. Finned, Silver – 1999–2017 Fuel Injected Twin Cam

Low stock

Description Aluminum construction. Slip-fit installation around the spark plug. These head bolt covers are designed to bridge the large and empty g...

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£54.03 - £54.03
£54.03
£54.03 - £54.03
£54.03
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£71.73
£71.73 - £71.73
£71.73
£66.30
£66.30 - £66.30
£66.30

MCS Head Bolt Bridge Cover Set. Finned, Black – 1999–2017 Fuel Injected Twin Cam

Low stock

Description Aluminum construction. Slip-fit installation around the spark plug. These head bolt covers are designed to bridge the large and empty g...

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£71.73
£71.73 - £71.73
£71.73
£66.30
£66.30 - £66.30
£66.30
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£622.06 - £622.06
£622.06
£625.28
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£625.28

S&S L81-99 Heavy Duty Connecting Rod Assembly – L1981–1999 Big Twin

Low stock

Description Heavy Duty S&S connecting rod assemblies have a stronger than stock construction. Manufactured from drop forged 4140 chrome moly st...

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£622.06 - £622.06
£622.06
£625.28
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£625.28
£7.83 - £7.83
£7.83
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£7.83

MCS Breather Tube – 1993–1999 Softail; 1993–1998 Dyna…

Low stock

Description Rubber; stock replacement for stock air cleaners Fitment 93-99 Softail; 93-98 Dyna; 93-98 FLT/Touring; 95-03 XL Sportster (NU) Product ...

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£7.83 - £7.83
£7.83
£7.83 - £7.83
£7.83
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£11.89
£11.89 - £11.89
£11.89
£10.63
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£10.63

MCS Breather Bolt Set – 2008–2017 Twin Cam; 2017–2025 M8

Low stock

Description 2 bolts used. 3/8-16 threaded. Hollow bolts. Long type. Allows connection of heads to breather hose. Used in combination with aftermark...

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£11.89
£11.89 - £11.89
£11.89
£10.63
£10.63 - £10.63
£10.63
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£6.19
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£6.19
£5.37
£5.37 - £5.37
£5.37

MCS Air Filter Breather Tube – 2008–2017 Dyna with Tear Drop Air…

Low stock

Description Rubber; stock replacement for stock air cleaners Fitment 08-17 Dyna with tear drop air cleaner Product Details Brand: MCS Category: ...

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£6.19
£6.19 - £6.19
£6.19
£5.37
£5.37 - £5.37
£5.37
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£9.64
£9.64 - £9.64
£9.64
£8.62
£8.62 - £8.62
£8.62

MCS Breather Bolt Set – 1999–2007 Twin Cam

Low stock

Description 2 bolts used. Hollow bolts. 3/8-16 threaded. Short type. Allows connection of heads to breather hose. Fitment 99-07 Twin Cam (NU) Produ...

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£9.64
£9.64 - £9.64
£9.64
£8.62
£8.62 - £8.62
£8.62
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