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.
Pos. | ZPN | Description | OEM |
1 |
745745
$1.13
|
Cover bushing pin 1/8" x 1/4" | 271 |
2 |
238891
$1.13
|
Pin, generator gear | 327 |
2 |
739898
$3.05/Each Sold in dealer packs of 5
|
Pin, generator gear, 5-pack | 327 |
3 |
238890
$1.13
|
Crankcase oil strainer retainer pin 1/8" x 1 3/4" | 333 |
4 |
238892
$3.39
|
Crankcase relief pipe fastening screw, set of 4 | 1202 |
5 |
238893
$29.49
|
Gear cover screw 14-24x1 1/8", set of 12, chrome | 2341 |
6 |
238909
$7.49
|
Chain oiler washer | 6150 |
7 |
238911
|
Washer, 13/32"x5/8"x1/32", dealer 25-pack | 6440 |
8 |
233511
$0.86/Each Sold in dealer packs of 10
|
Camshaft steel washer, dealer 10-pack | 6769 |
9 |
238910
$0.06/Each Sold in dealer packs of 100
|
Lock washer #10x21/64"x3/64", dealer 100-pack | 7021 |
10 |
734922
$153.98
|
Pinion gear Big Twin | 24010-37 |
10 |
745740
$46.91
|
Pinion gear 45CI | 24011-37 |
11 |
238894
$13.53
|
Gear shaft bearing seal ring, 1939-up | 24696-39 |
12 |
238895
$6.20
|
Gear shaft seal ring spring 45CI | 24699-37 |
12 |
781160
|
Gear shaft seal ring spring Big Twin | 24700-37 |
13 |
238896
$17.36
|
Crankcase relief pipe | 24912-37 |
14 |
700179
$0.74/Each Sold in dealer packs of 10
|
Crankcase relief pipe gasket, Athena, dealer 10-pack | 24921-37 |
14 |
238913
$1.37/Each Sold in dealer packs of 10
|
Crankcase relief pipe gasket, James, dealer 10-pack | 24921-37 |
15 |
740464
$13.68
|
Crankcase oil strainer | 24975-37 |
16 | - | Gear cover 45CI | 25201-37 |
16 | - | Gear cover Big Twin | 25208-37 |
17 |
700190
$2.47/Each Sold in dealer packs of 10
|
Gear cover gasket 45CI, Athena, dealer 10-pack | 25226-37 |
17 |
238912
$5.36/Each Sold in dealer packs of 10
|
Gear cover gasket 45CI, James, dealer 10-pack | 25226-37 |
17 |
700191
$4.15/Each Sold in dealer packs of 10
|
Gear cover gasket Big Twin, Athena, dealer 10-pack | 25227-37 |
17 |
781163
|
Gear cover gasket Big Twin, James, dealer 10-pack | 25227-37 |
18 |
238897
$19.84
|
Breather oil separator seal ring | 25281-37 |
19 |
238898
$5.64
|
Seal ring retaining pin, set of 2 | 25285-37 |
20 |
238899
$2.71
|
Seal ring spring | 25287-37 |
21 |
238900
$12.39
|
Crankcase gear cover breather valve | 25350-37 |
22 |
788730
$607.72
|
Set of four cams, W, WL & G, Samwel | 25501-37 & 25502-37 & 25503-37 & 25504-37 |
22 |
238914
$563.76
|
Set of four WLDR-style High Performance cams, also fit W, WL & G | 80610-39 & 80611-39 & 80612-39 & 80613-39 |
22 |
747439
$620.14
|
Set of four true High Performance cams, W, WL & G, Samwel | WLDR style with 10% more lift |
23 |
745743
$14.21
|
Cam gear cover bushing | 25586-37 |
24 |
745973
$16.69
|
Cam gear cover bushing | 25588-37 |
25 |
745742
$17.81
|
Cam gear cover bushing | 25590-37 |
25 |
781161
$32.50
|
Cam cover gear shaft bushing Big Twin | 25591-37 |
26 |
745744
$18.94
|
Cam cover gear shaft bushing 45CI | 25593-37 |
27 |
745741
$14.21
|
Cam gear cover bushing | 25595-37 |
28 |
781157
$40.81
|
Crankcase cam gear bushing, Big Twin | 25599-37 |
28 |
234681
$46.76
|
Crankcase cam gear bushing | 25601-37 |
28 |
782930
$13.64/Each Sold in dealer packs of 4
|
Crankcase cam gear bushing, set of four | 25601-37 |
28 |
781158
|
Crankcase cam gear bushing Big Twin, +.005" O.S. | - |
28 |
234682
$44.38
|
Crankcase cam gear bushing 45CI, +.005" O.S. | - |
28 |
781159
|
Crankcase cam gear bushing Big Twin, +.010" O.S. | - |
28 |
234683
$44.38
|
Crankcase cam gear bushing 45CI, +.010" O.S. | - |
29 |
238901
$4.74
|
Idler gear bushing, 1930-up | 25785-30 |
29 |
235778
$23.20
|
Idler gear bushing, Jims USA, 1930-up | 25785-30 |
30 |
238902
$9.24
|
Idler gear stud assembly, 1930-up | 25788-30 |
31 |
238908
$3.39
|
Idler gear stud screw | 25794-36 |
32 |
238903
$1.34
|
Idler gear stud spring ring | 25810-15 |
33 |
238906
$22.56
|
Circuit breaker drive gear only | 25851-37 |
34 |
238907
$2.26
|
Circuit breaker drive gear key, 1929-up | 25860-29 |
34 |
781162
$121.52
|
Breather valve and scavenger pump gear Big Twin | 25302-37 |
35 |
745751
$71.94
|
Breather valve and scavenger pump gear 45CI | 26318-37 |
36 |
781321
$15.14
|
Chain oiler adjusting screw kit, parkerized, 1932-up | 26383-32 |
36A |
782977
$3.39
|
Adjusting screw only | 26383-32 |
37 |
745738
$32.71
|
Oil pressure switch, 45CI, Samwel | 26550-38A |
37 |
789833
$45.84
|
Oil pressure switch, 45CI, replica, V-Twin Mfg. | 26550-38A |
37 |
780231
$45.33
|
Oil pressure switch, Big Twin, Samwel | 26551-39 |
37 |
789834
$51.40
|
Oil pressure switch, Big Twin, replica, V-Twin Mfg. | 26551-39 |
38 |
238905
$56.38
|
Generator drive gear | 31071-37 |
39 |
012257
$24.73
|
Oil tank feed/vent line nipple, zinc, Genuine Zodiac, 3-pack | 63533-15 |
39 |
788944
$19.41
|
Oil tank feed/vent line nipple, chrome, Colony, 3-pack | 63533-15 |
39 |
788945
$15.80
|
Oil tank feed/vent line nipple, white plated, Colony, 3-pack | 63533-15 |
39 |
788946
$15.80
|
Oil tank feed/vent line nipple, parkerized, Colony, 3-pack | 63533-15 |
40 |
234061
|
Cover screw kit 45CI, Colony, chrome | - |
40 |
234064
$31.72
|
Cover screw kit 45CI, Colony, white plated | - |
40 |
234065
$31.72
|
Cover screw kit 45CI, Colony, parkerized | - |
40 |
234062
$24.29
|
Cover screw kit BT 1936-1969, Colony, white plated | - |
40 |
234063
|
Cover screw kit BT 1936-1969, Colony, parkerized | - |
41 |
235594
$266.64
|
Idler gear, 1930-1948 Big Twin, S&S | 25775-30 |
41 |
238917
$51.86
|
Idler gear 45CI | 25776-37 |
Recommended Retail Prices excluding sales tax.
Prices exclude shipping, import duties and installation.
Prices are based on EUR to USD 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.