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Transmission & Clutch

Start your search for transmission and clutch parts here, with products gathered for Harley-Davidson, American V-twin and compatible motorcycle applications. Compatibility varies, so match the stated model, year and technical details before ordering.

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Samwel Bracket, 2Nd Gear – 1941–1973 45" Flathead Save 1% Save %
£40.38
£40.38 - £40.38
£40.38
£39.98
£39.98 - £39.98
£39.98

Samwel Bracket, 2nd Gear for 1941-1973 45" Flathead - 17-0372

Available

Description 1 used transmission. OEM replacement reference 35333-41; 2299-41 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Categor...

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£40.38
£40.38 - £40.38
£40.38
£39.98
£39.98 - £39.98
£39.98
Save 1% Save %
Sold out
£5.95
£5.95 - £5.95
£5.95
£5.68
£5.68 - £5.68
£5.68

Samwel Transmission to Mount Plate Stud for 1932-1973 45" Flathead - 0231801

Currently Unavailable

Description 3 used. 7/16-14 to 7/16-20 threaded. Used to mount the transmission housing to the transmission mount plate. OEM replacement reference ...

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£5.95
£5.95 - £5.95
£5.95
£5.68
£5.68 - £5.68
£5.68
Sold out
Samwel Washer, Brace. Transm. Mount – 1932–1973 45" SV Save 8% Save %
£4.52
£4.52 - £4.52
£4.52
£4.17
£4.17 - £4.17
£4.17

Samwel Washer, Brace. Transm. Mount for 32-73 45" SV - 0231802

Available

Description 3 used Fitment32-73 45" SV (NU)Product Details Brand: Samwel Category: TRANSMISSION/DRIVELINE > TRANSMISSION MISC Unit: 3P Prod...

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£4.52
£4.52 - £4.52
£4.52
£4.17
£4.17 - £4.17
£4.17
Save 8% Save %
Samwel Race, Outer Bearing Transmission End Cover – 1941–1973 45" Flathead
£34.25 - £34.25
£34.25
£38.08
£38.08 - £38.08
£38.08

Samwel Race, Outer Bearing Transmission End Cover for 1941-1973 45" Flathead - 0229001

Available

Description 1 used. On mainshaft. OEM replacement reference 35102-33; 2290-33 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Catego...

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£34.25 - £34.25
£34.25
£38.08
£38.08 - £38.08
£38.08
Samwel Transmission Case – 1941–1951 WL; 1932–1963 Servi-Car
£644.01 - £644.01
£644.01
£822.33
£822.33 - £822.33
£822.33

Samwel Transmission Case for 41-51 WL; 32-63 Servi-Car - 0225802

Available

Description OEM replacement reference 34702-41; 34702-41A; 2258-41 Fitment 41-51 WL 32-63 Servi-Car (NU) Product Details Brand: Samwel Category:...

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£644.01 - £644.01
£644.01
£822.33
£822.33 - £822.33
£822.33
£125.96 - £125.96
£125.96
£127.46
£127.46 - £127.46
£127.46

Samwel Sprocket Cover, Transmission for 41-43 WL; Servi-Car Up to 1963 - 49-0419

Available

Description OEM replacement reference 34873-41; 2345-41 Fitment 41-43 WL Servi-Car up to 1963 (NU) Product Details Brand: Samwel Category: TRANS...

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£125.96 - £125.96
£125.96
£127.46
£127.46 - £127.46
£127.46
Samwel Shaft, Reverse Idler Gear Transmission – 1941–1973 45" Flathead
£11.44 - £11.44
£11.44
£13.10
£13.10 - £13.10
£13.10

Samwel Shaft, Reverse Idler Gear Transmission for 1941-1973 45" Flathead - 0236701

Available

Description 1 used. OEM replacement reference 36159-41; 2367-41 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Category: TRANSMISSI...

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£11.44 - £11.44
£11.44
£13.10
£13.10 - £13.10
£13.10
Samwel Pin, Sprocket Cover – 1941–1973 45" Flathead
£4.79 - £4.79
£4.79
£5.46
£5.46 - £5.46
£5.46

Samwel Pin, Sprocket Cover for 1941-1973 45" Flathead - 0234604

Available

Description 1 used. Dowel pin transmission sprocket cover. OEM replacement reference 34898-41; 2346-41 Fitment41-73 45" Flathead (NU)Product Detail...

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£4.79 - £4.79
£4.79
£5.46
£5.46 - £5.46
£5.46
Samwel Reverse Idle Gear – 1941–1973 45" Flathead
Save 3% Save %
£57.59
£57.59 - £57.59
£57.59
£55.83
£55.83 - £55.83
£55.83

Samwel Reverse Idle Gear for 1941-1973 45" Flathead - 0236501

Available

Description 1 used. Transmission. OEM replacement reference 36141-41 / 2365-41 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Categ...

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£57.59
£57.59 - £57.59
£57.59
£55.83
£55.83 - £55.83
£55.83
Save 3% Save %
Samwel 2Nd Gear Transmission. 18T – 1941–1973 45" Flathead
Save 1% Save %
£87.50
£87.50 - £87.50
£87.50
£86.65
£86.65 - £86.65
£86.65

Samwel 2nd Gear Transmission. 18T for 1941-1973 45" Flathead - 0229501

Available

Description 1 used. OEM replacement reference 35294-41 / 2295-41 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Category: TRANSMISS...

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£87.50
£87.50 - £87.50
£87.50
£86.65
£86.65 - £86.65
£86.65
Save 1% Save %
Samwel Bushing, 2Nd Gear – 1941–1973 45" Flathead
Save 4% Save %
£13.70
£13.70 - £13.70
£13.70
£13.10
£13.10 - £13.10
£13.10

Samwel Bushing, 2nd Gear for 1941-1973 45" Flathead - 0229701

Available

Description 1 used. Transmission. OEM replacement reference 35320-41 / 2297-41 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Catego...

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£13.70
£13.70 - £13.70
£13.70
£13.10
£13.10 - £13.10
£13.10
Save 4% Save %
Samwel 1St Gear, Transmission Mainshaft – 1941–1973 45" Flathead
Save 1% Save %
£78.92
£78.92 - £78.92
£78.92
£78.15
£78.15 - £78.15
£78.15

Samwel 1st Gear, Transmission Mainshaft for 1941-1973 45" Flathead - 0229401

Available

Description 1 used. OEM replacement reference 35275-41 / 2294-41 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Category: TRANSMISS...

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£78.92
£78.92 - £78.92
£78.92
£78.15
£78.15 - £78.15
£78.15
Save 1% Save %
Samwel Shifter Clutch, 1St Gear & Reverse Gear – 1941–1973 45" Flathead 3-Speed with…
Sold out
£71.99
£71.99 - £71.99
£71.99
£69.79
£69.79 - £69.79
£69.79

Samwel Shifter Clutch, 1st Gear & Reverse Gear for 1941-1973 45" Flathead 3-Speed with Reverse - 0229803

Currently Unavailable

Description 1 used. Transmission. OEM replacement reference 35442-41 / 2298-41A Fitment41-73 45" Flathead 3-speed with reverse (NU)Product Details ...

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£71.99
£71.99 - £71.99
£71.99
£69.79
£69.79 - £69.79
£69.79
Sold out
£142.77 - £142.77
£142.77
£144.47
£144.47 - £144.47
£144.47

V-Twin Mfg Reverse Gear for 1941-1973 45" Flathead - 17-9916

Available

Description 1 used. Transmission. OEM replacement reference 35284-41 / 2296-41 Fitment41-73 45" Flathead (NU)Product Details Brand: V-Twin Mfg C...

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£142.77 - £142.77
£142.77
£144.47
£144.47 - £144.47
£144.47
Save 4% Save %
£18.28
£18.28 - £18.28
£18.28
£17.48
£17.48 - £17.48
£17.48

Samwel Bushing, Reverse Gear for 1933-1973 45" Flathead - 0229703

Available

Description 1 used. Transmission. OEM replacement reference 35326-33 / 2297-33 Fitment33-73 45" Flathead (NU)Product Details Brand: Samwel Categ...

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£18.28
£18.28 - £18.28
£18.28
£17.48
£17.48 - £17.48
£17.48
Save 4% Save %
Samwel Retainer, Oil Seal Mainshaft – 1941–1973 45" Flathead
Save 4% Save %
£6.86
£6.86 - £6.86
£6.86
£6.56
£6.56 - £6.56
£6.56

Samwel Retainer, Oil Seal Mainshaft for 1941-1973 45" Flathead - 0229301

Available

Description 1 used. Transmission. OEM replacement reference 35219-41 / 2293-41 Fitment41-73 45" Flathead (NU)Product Details Brand: Samwel Categ...

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£6.86
£6.86 - £6.86
£6.86
£6.56
£6.56 - £6.56
£6.56
Save 4% Save %
Samwel Countershaft Gear – 1941–1963 45" Flatheads
£175.44 - £175.44
£175.44
£177.54
£177.54 - £177.54
£177.54

Samwel Countershaft Gear for 1941-1963 45" Flatheads - 0230301

Available

Description Transmission. OEM replacement reference 35709-41 / 2303-41 Fitment41-63 45" Flatheads (NU)Product Details Brand: Samwel Category: TR...

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£175.44 - £175.44
£175.44
£177.54
£177.54 - £177.54
£177.54
Samwel 3 To 4-Speed Conversion Kit for 45" Flathead – 1941–1951 WL & 1932–1963 G Servi-Car
Sold out
£1,009.55 - £1,009.55
£1,009.55
£1,076.61
£1,076.61 - £1,076.61
£1,076.61

Samwel 3 to 4-Speed Conversion Kit for 45" Flathead for 41-51 WL & 32-63 G Servi-Car - 0218001

Currently Unavailable

Description Will enable you to turn the stock 45" 3-speed transmission into a 4-speed. 1; 2; 3 are smaller and 4th gear is identical to OEM ratio t...

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£1,009.55 - £1,009.55
£1,009.55
£1,076.61
£1,076.61 - £1,076.61
£1,076.61
Sold out
£263.37 - £263.37
£263.37
£270.46
£270.46 - £270.46
£270.46

Samwel 3 to 4-Speed Conversion Kickstart End Cover for 41-51 WL; 32-63 Servi-Car with 971589 3 to 4-Speed Conversion Kit - 0226007

Available

Description Conversion transmission end cover (kickstart cover) for 750cc Side Valve (Flathead) models. Machined for a larger 1st. (low) gear. For ...

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£263.37 - £263.37
£263.37
£270.46
£270.46 - £270.46
£270.46
Save 4% Save %
£13.93
£13.93 - £13.93
£13.93
£13.32
£13.32 - £13.32
£13.32

Samwel Adjusting Screw, Transmission. Black for 1932-1963 45" Flathead - 0232800

Available

Description Black parkerized finish. OEM replacement reference 34736-27; 2328-27 Fitment32-63 45" Flathead (NU)Product Details Brand: Samwel Cat...

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£13.93
£13.93 - £13.93
£13.93
£13.32
£13.32 - £13.32
£13.32
Save 4% Save %
Samwel Transmission Oil Fill Plug. Chrome – 1941–1973 45" (750cc) Flathead
Save 4% Save %
£12.80
£12.80 - £12.80
£12.80
£12.24
£12.24 - £12.24
£12.24

Samwel Transmission Oil Fill Plug. Chrome for 1941-1973 45" (750cc) Flathead - 0232603

Available

Description OEM reproduction style. 11/16"-11 threaded. OEM replacement reference 703; 2326-41. Fitment41-73 45" (750cc) Flathead (NU)Product Detai...

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£12.80
£12.80 - £12.80
£12.80
£12.24
£12.24 - £12.24
£12.24
Save 4% Save %
£43.64 - £43.64
£43.64
£44.34
£44.34 - £44.34
£44.34

Sonnax Koyo, Bearing Mainshaft and Clutch Hub for Harley-Davidson 1954-1990 4-Speed XL Sportster: Mainshaft. 1984-1989 Evo Big Twin: Clutch Hub - HDBB0011

Available

Description Koyo bearing (former Torrington). Multiple applications. OEM replacement reference 9025A. Fitment54-90 4-speed XL Sportster: Mainshaft....

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£43.64 - £43.64
£43.64
£44.34
£44.34 - £44.34
£44.34
£20.33 - £20.33
£20.33
£20.67
£20.67 - £20.67
£20.67

Sonnax Koyo, Bearing Countershaft. Closed End for Harley-Davidson 1954-1956 K, KH; 1957-1990 4-Speed XL Sportster - HDNB0030

Available

Description Koyo is former Torrington. OEM replacement reference 35960-54 Fitment 54-56 K, KH 57-90 4-speed XL Sportster (NU) Product Details Bra...

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£20.33 - £20.33
£20.33
£20.67
£20.67 - £20.67
£20.67
£45.33 - £45.33
£45.33
£46.60
£46.60 - £46.60
£46.60

Sonnax Koyo, Needle Bearing Transmission Mainshaft for Harley-Davidson Late 1977-1981 4-Speed Big Twin - HDNB0009

Available

Description Main drive gear. OEM replacement reference 8905 FitmentL77-81 4-speed Big Twin (NU)Product Details Brand: Sonnax Category: Transmissi...

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£45.33 - £45.33
£45.33
£46.60
£46.60 - £46.60
£46.60

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