AFB Motorcycles

Parts fit all 1937 and later 45CI, 74CI & 80CI Sidevalve engines, unless otherwise specified.
*for best results we recommend to flow intake ports and use oversize intake valves, high compression heads and M51 style or Mikuni carburetor.

Specifications

Pos. ZPN Description OEM
1. 745745
£0.42

£0.33
Cover bushing pin 1/8" x 1/4" 271
2. 238891
£1.05

£0.84
Pin, generator gear 327
3. 238890
£1.05

£0.84
Crankcase oil strainer retainer pin 1/8" x 1 3/4" 333
4. 238892
£3.14
Crankcase relief pipe fastening screw, set of 4 1202
5. 238893
£19.67
Gear cover screw 14-24x1 1/8", set of 12, chrome 2341
6. 238909
£3.06
Chain oiler washer 6150
7. 238911
£0.39

£0.29/Each

Sold in dealer packs of 25
Washer, 13/32"x5/8"x1/32", dealer 25-pack 6440
8. 233511
£0.56/Each

Sold in dealer packs of 10
Camshaft steel washer, dealer 10-pack 6769
9. 238910
£0.05/Each

Sold in dealer packs of 100
Lock washer #10x21/64"x3/64", dealer 100-pack 7021
10. 734922
£142.14
Pinion gear Big Twin 24010-37
10. 745740
£41.97
Pinion gear 45CI 24011-37
11. 238894
£10.49
Gear shaft bearing seal ring, 1939-up 24696-39
12. 238895
£2.63
Gear shaft seal ring spring 45CI 24699-37
12. 781160
£18.91
Gear shaft seal ring spring Big Twin 24700-37
13. 238896
£13.64
Crankcase relief pipe 24912-37
14. 700179
£0.51/Each

Sold in dealer packs of 10
Crankcase relief pipe gasket, Athena, dealer 10-pack 24921-37
14. 238913
£1.47

£1.14/Each

Sold in dealer packs of 10
Crankcase relief pipe gasket, James, dealer 10-pack 24921-37
15. 740464
£12.39
Crankcase oil strainer 24975-37
16. - Gear cover 45CI 25201-37
16. - Gear cover Big Twin 25208-37
17. 700190
£1.70/Each

Sold in dealer packs of 10
Gear cover gasket 45CI, Athena, dealer 10-pack 25226-37
17. 238912
£3.67/Each

Sold in dealer packs of 10
Gear cover gasket 45CI, James, dealer 10-pack 25226-37
17. 700191
£2.78/Each

Sold in dealer packs of 10
Gear cover gasket Big Twin, Athena, dealer 10-pack 25227-37
17. 781163
£3.67/Each

Sold in dealer packs of 10
Gear cover gasket Big Twin, James, dealer 10-pack 25227-37
18. 238897
£16.78
Breather oil separator seal ring 25281-37
19. 238898
£3.68
Seal ring retaining pin, set of 2 25285-37
20. 238899
£2.42
Seal ring spring 25287-37
21. 238900
£9.44
Crankcase gear cover breather valve 25350-37
22. 238914
£472.19
Set of 4 cams, WLDR* -
23. 745743
£10.49

£8.39
Cam gear cover bushing 25586-37
24. 745973
£14.70
Cam gear cover bushing 25588-37
25. 745742
£10.49
Cam gear cover bushing 25590-37
25. 781161
£23.79
Cam cover gear shaft bushing Big Twin 25591-37
26. 745744
£12.60
Cam cover gear shaft bushing 45CI 25593-37
27. 745741
£10.49

£8.39
Cam gear cover bushing 25595-37
28. 781157
£28.06
Crankcase cam gear bushing, Big Twin 25599-37
28. 234681
£35.99
Crankcase cam gear bushing 45CI 25601-37
28. 781158
£30.49
Crankcase cam gear bushing Big Twin, +.005" O.S. -
28. 234682
£24.27

£18.49
Crankcase cam gear bushing 45CI, +.005" O.S. -
28. 781159
£30.49
Crankcase cam gear bushing Big Twin, +.010" O.S. -
28. 234683
£36.47
Crankcase cam gear bushing 45CI, +.010" O.S. -
29. 238901
£6.29
Idler gear bushing, 1930-up 25785-30
29. 235778
£15.96
Idler gear bushing, Jims USA, 1930-up 25785-30
30. 238902
£8.40
Idler gear stud assembly, 1930-up 25788-30
31. 238908
£3.14
Idler gear stud screw 25794-36
32. 238903
£1.26

£1.01
Idler gear stud spring ring 25810-15
33. 238906
£18.89
Circuit breaker drive gear only 25851-37
34. 238907
£2.10

£1.67
Circuit breaker drive gear key, 1929-up 25860-29
34. 781162
£88.24
Breather valve and scavenger pump gear Big Twin 25302-37
35. 745751
£33.59
Breather valve and scavenger pump gear 45CI 26318-37
36. 238905
£29.38
Chain oiler adjusting screw kit, 1932-up 26383-32
37. 745738
£23.09
Oil pressure switch, complete 26550-38A
38. 238905
£29.38
Generator drive gear 31071-37
39. 012257
£17.47
Oil tank feed/vent line nipple, 3-pack 63533-15
40. 234061
£24.47

£19.58
Cover screw kit, Colony, chrome -
40. 234064
£20.55

£16.44
Cover screw kit 45CI, Colony, cad plated -
40. 234065
£20.55

£16.44
Cover screw kit 45CI, Colony, parkerized -
40. 234062
£17.96

£14.37
Cover screw kit BT 1936-1969, Colony, cad plated -
40. 234063
£17.96

£14.37
Cover screw kit BT 1936-1969, Colony, parkerized -
41. 235594
£206.92
Idler gear, 1930-1948 Big Twin, S&S 25775-30
41. 238917
£48.26

£38.61
Idler gear 45CI 25776-37

Recommended Retail Prices include 20% sales tax.

Prices exclude shipping, import duties and installation.

Prices are based on EUR to GBP interbank rates obtained daily. The interbank rate is the rate that banks trade currency to each other. These prices must be used as a guide.