VS57 Parts Interchange

This ongoing section provides a parts interchange for the VS57 variants and the Avanti SN unit. Hopefully, given time, and information (anyone got any?) the SN series will be covered as well. It also provides a useful cross-reference of McCulloch part numbers versus Studebaker part numbers.

Many thanks to Mike Mudd for the Studebaker information.

The item numbers refer to this commonly available VS57S schematic diagram.

ItemDescriptionNo.McC No.Stude. No.VS57A VS57BVS57CVS57SAvanti SNNotes
           
1Screw, flat hd. Mach. 10-24 x 7/82101948g133573xxxx  
2Medallion (Studebaker)137086A1542900   x 1
 Medallion (McCulloch)137086 x xx 1
 Medallion (Packard)1 1543744   x 1
 Medallion (Kaiser)1   x x 1
3Spring, retaining1371491542902xxxx  
4Solenoid Regulator Assembly 12V1376721542901  xx 2
 Solenoid Regulator Assembly 6V137295 xxx  2
5“O” Ring 1 ¼” dia.21024621542903xxxx  
 Solenoid cable Grommit1101229 x     
6Oil level gauge assembly (OGA)1370251542904xxxxx 
7OGA – spring1370271542905xxxxx 
8OGA – “O” ring 19/64” dia.11022251542906xxxxx 
9Screw, socket hd. 5/16-24 x 1 3/161 g181610   x 3
 Screw, socket hd. 5/16-24 x 1 1/41102549 xxx  3
 Screw, socket hd. 5/16-24 x 1 1/41102199    x 3
10Lockwasher1100271g120214   x 4
  1102550 xxx  4
11Retainer, driven pulley137203A1542907   x 5
  137203 x    5
  137203B xxxx 5
12Driven Pulley Assembly (fixed flange) (DPA)137079D1542908   x 6
  137079B xxx  6
13DPA – Hub137080A xxxx  
14DPA – Washer137204 xxxx  
15DPA –  Flange, Fixed137075C    x 7
  137075A x??  7
16Sliding Pulley Assembly (SPA)1376841542912   x 8
  137076A xxx  8
17SPA – Pin .125 dia x .34 lg.3102373 xxxx  
18SPA – Bushing, splined137074A xxxx  
19SPA – Flange, sliding137077B    x 9
  137077 x   ?   ?  9
20Ball bearing11023751542916xxxx  
21Ring, retaining – air cylinder cover2370811542917xxxx  
22Cover, air cylinder1370821542918xxxx  
23Ring, outer – air cylinder piston1370831542919xxxx  
24Piston, air cylinder137072A1522920xxxx  
25Spring, piston – air cylinder (65 lb)1372781542921  ?x 10
 Spring, piston – air cylinder (45 lb)137087 x??  10
26Screw, fil hd. mach. 10-24 x .8813102134g132056xxxxx 
27Lockwasher – #1013100436g446161xxxx  
28Washer – plain13100003g106497xxxx 11
  13 1559174    x11
29Gasket – scroll cover1372631542922 x x 12
30Scroll Cover1376391542923   x 13
  137023A x??  13
  1 1559172    x13
31Scroll Cover – Hose connection11024361542924xxxx  
  1 1559173    x 
32Screw, hex hd. 5/16-24 x 1.251102199g181610xxxxx 
33Lockwasher 5/16 SAE med.1100271g120214xxxxx 
34Washer, retaining – impellor110035041×95xxxx  
  1 41×97    x 
35Impellor1370211542925xxxxx 
36Shim (Dulite Black) (.026 – .028) 370181542926     14
37Screw, hex hd. 1/4-20 x 1.256102128g180024   x 15
  6100822 x    15
 Screw, hex hd. 1/4-20 x 1.1254 G180023    x15
 Screw, hex hd. 1/4-20 x 1.125 (drilled)2 1559950    x15
38Lockwasher 1/4 SAE med.6100246g120392xxxx  
39Washer – plain 1/46100005g120380xxxx 16
  6 1559169    x16
40“O” ring 6-1/2 I.D.21012541542933xxxxx 
41Decal1370901542934xxxx  
 Bearing Housing Assembly (BHA)137056A1542935xxxx  
  1 1558166    x 
42BHA – Ring, inner – air cylinder1370841542936xxxx  
43BHA – Seal – input shaft11024301542937xxxxx 
44BHA – Sleeve – oil level gauge1370241542938xxxxx 
45BHA – Housing, bearing.137085A1542939xxxx  
46Key, pulley hub1370731542940xxxx  
47Spacer, shaft seal137094A1543206   xx17
  137094 x   x   x  17
 Washer, Spacer1 1543207   x 18
  1 1560252    x18
48ball bearing (ND 3205-X1A)11003811542942 xxxx19
  1102197 x    19
 Oil Pump Assembly (OPA)137054B1542943xxxxx 
49OPA – Retainer – oil pump screen1370191542944xxxxx 
50OPA – Screen1370261542945xxxxx 
51OPA – Plug1371971542946xxxxx 
52OPA – Spring, plunger1370151542947xxxxx 
53OPA – Plunger137007B1542948xxxxx 
54OPA – Body Assembly137055B1542949xxxxx 
 OPA – Body137309 x????20
 Ball – 3/16″ dia (Stainless Steel Grade 1)1100549 x????21
55OPA – Bushing1370061542949x? ? ??22
56Ball bearing (ND 3206-X1A)11021981542951xxxxx 
57Screw, input shaft5370121542873xxxxx 
58Driver, ball (retainer)1370111542952xxxxx 
59Input Shaft Assembly (IPA)1370531542953xxxx 23
 Input shaft137009 xxxx?24
 Input Shaft with bushing1 1558165    x23
60IPA – Bushing1370101542954xxxx?25
61Race Load Assembly (RLA)137277A1542955 ??x 26
  137004A x??  26
  1 1558544    x27
62RLA – Ring, snap1370641542956xxxxx 
63RLA – Cage, spring – race load (rear)137062A1542959 ??xx26
  137062 x??  26
64RLA – Spring, race load1437063A1542958 ??x 26
  1237063A x??  26
  14 1563153    x27
65RLA – Cage, spring – race load (front)1370611542957xxxxx 
 Disc, Clutch – ball race237088 x??  28
66Pin21010351542960 ??xx28
67Output Drive Element Set – Matched (ODES)1376811542961xxxx 29
  1 1558168    x29
68ODES – Ball Race Set (matched pair of races)1376821542962   xx30
 Race, Ball237008 xxx  30
69ODES – Drive Ball Set (matched set of 5 balls)1376831542963   xx30
 Ball, drive 1.0625″ dia. – Steel5102194 xxx  30
70ODES – Output Shaft Assembly (OSA)137051A1542964xxxx 29
 ODES – Output Shaft Assembly (OSA)137051B    x29
71ODES – OSA – Ring, Labyrinth2372061542965xxxxx 
72ODES – OSA – Slinger, oil137003A1542966xxxxx 
73ODES – OSA – Pin, Dowel21021951542967 ??xx31
  2101556 x??  31
74ODES – OSA – Shaft, output137002A xxxx 32
75Scroll Assembly (SA)137050C1542968 ??x 33
  137050A x??  33
  1 1558485    x 
76SA – Pin, dowel11021961542969xxxxx 
77SA – Cover – scroll air hole1372861542970   xx34
           

Notes

  1. No surprises on the badges being interchangeable as well. McCulloch numbers for Kaiser and Packard currently unknown.
  2. VS57A, VS57B and some VS57C’s came with 6V solenoid. A resistor was used to step down the voltage when the 6V solenoid was used on a 12V system. All VS57S units used the 12V solenoid.
  3. Will interchange – lock washer takes up difference.
  4. Interchange
  5. 37203B is the retainer assembly – includes lockwasher and screw. Interchanges with all VS57 variants.
  6. No interchange – 37079D for Studebaker VS57S installation only.
  7. 37075B for VS57B or VS57C, no interchange between 37075A/B and 37075C.
  8. No interchange – 37684 for Studebaker VS57S installation only.
  9. 37077A variant for VS57B or VS57C. No interchange between  37077/77A and 37077B.
  10. VS57B and VS57C spring unknown. PL-5233 price list states 45lb spring is for VS57A only, hence suspect 65lb for these applications.
  11. Would expect washers to interchange.
  12. Scroll cover gasket only used on Kaiser and Studebaker installations.
  13. May interchange. 37023B and 37023C and 37129 variants available as well.
  14. Range of shims available – will be detailed later.
  15. Should interchange.
  16. Should interchange.
  17. Possible Interchange.
  18. Listed but not shown in diagrams.
  19. Both have same number ND 3205-X1A – should interchange.
  20. Oil pump normally listed as Body assembly 37055B. This oil pump body may interchange.
  21. Oil pump normally listed as Body assembly 37055B. This ball may interchange.
  22. Oil pump normally listed as Body assembly 37055B. This bushing may interchange.
  23. May interchange
  24. Input shaft minus bushing – may apply to all
  25. Input shaft bushing – may apply to all.
  26. Depends upon number of race springs for VS57B and VS57C- Need to check my VS57C!
  27. Higher spring pressure – Will fit VS57 but only with compatible race sets else excessive wear.
  28. Pins and/or clutches used to fix races – interchangeable.
  29. Will interchange, although SN output shaft has no pilot.
  30. Always match balls and raced. Will interchange as matched sets.  See 27 as well.
  31. Use 102195 where possible.
  32. No matching SN number, yet!
  33. Could be 37050A, 37050B or 37050C for VS57B and VS57C.
  34. Not present in early units – why?

Sources

  • McCulloch Shop Service Manual part No. 37691
  • McCulloch Installation and Operation Troubleshooting Manual (1955)
  • Studebaker Parts Manual Jan 1961 (c/o Mike Mudd)
  • Avanti Parts Manual Dec 1963 (c/o Mike Mudd)
  • VS57 Parts PL-5233 dated Sept 1 1970