
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.

|
Item |
Description |
No. |
McC No. |
Stude. No. |
VS57A |
VS57B |
VS57C |
VS57S |
Avanti SN |
Notes |
|
1 |
Screw, flat hd. Mach. 10-24 x 7/8 |
2 |
101948 |
g133573 |
x |
x |
x |
x |
||
|
2 |
Medallion (Studebaker) |
1 |
37086A |
1542900 |
x |
1 |
||||
|
Medallion (McCulloch) |
1 |
37086 |
x |
x |
x |
1 |
||||
|
Medallion (Packard) |
1 |
1543744 |
x |
1 |
||||||
|
Medallion (Kaiser) |
1 |
x |
x |
1 |
||||||
|
3 |
Spring, retaining |
1 |
37149 |
1542902 |
x |
x |
x |
x |
||
|
4 |
Solenoid Regulator Assembly 12V |
1 |
37672 |
1542901 |
x |
x |
2 |
|||
|
Solenoid Regulator Assembly 6V |
1 |
37295 |
x |
x |
x |
2 |
||||
|
5 |
"O" Ring 1 ¼” dia. |
2 |
102462 |
1542903 |
x |
x |
x |
x |
||
|
Solenoid cable Grommit |
1 |
101229 |
x |
|||||||
|
6 |
Oil level gauge assembly (OGA) |
1 |
37025 |
1542904 |
x |
x |
x |
x |
x |
|
|
7 |
OGA - spring |
1 |
37027 |
1542905 |
x |
x |
x |
x |
x |
|
|
8 |
OGA - "O" ring 19/64” dia. |
1 |
102225 |
1542906 |
x |
x |
x |
x |
x |
|
|
9 |
Screw, socket hd. 5/16-24 x 1 3/16 |
1 |
g181610 |
x |
3 |
|||||
|
Screw, socket hd. 5/16-24 x 1 1/4 |
1 |
102549 |
x |
x |
x |
3 |
||||
|
Screw, socket hd. 5/16-24 x 1 1/4 |
1 |
102199 |
x |
3 |
||||||
|
10 |
Lockwasher |
1 |
100271 |
g120214 |
x |
4 |
||||
|
1 |
102550 |
x |
x |
x |
4 |
|||||
|
11 |
Retainer, driven pulley |
1 |
37203A |
1542907 |
x |
5 |
||||
|
1 |
37203 |
x |
5 |
|||||||
|
1 |
37203B |
x |
x |
x |
x |
5 |
||||
|
12 |
Driven Pulley Assembly (fixed flange) (DPA) |
1 |
37079D |
1542908 |
x |
6 |
||||
|
1 |
37079B |
x |
x |
x |
6 |
|||||
|
13 |
DPA - Hub |
1 |
37080A |
x |
x |
x |
x |
|||
|
14 |
DPA - Washer |
1 |
37204 |
x |
x |
x |
x |
|||
|
15 |
DPA - Flange, Fixed |
1 |
37075C |
x |
7 |
|||||
|
1 |
37075A |
x |
? |
? |
7 |
|||||
|
16 |
Sliding Pulley Assembly (SPA) |
1 |
37684 |
1542912 |
x |
8 |
||||
|
1 |
37076A |
x |
x |
x |
8 |
|||||
|
17 |
SPA - Pin .125 dia x .34 lg. |
3 |
102373 |
x |
x |
x |
x |
|||
|
18 |
SPA - Bushing, splined |
1 |
37074A |
x |
x |
x |
x |
|||
|
19 |
SPA - Flange, sliding |
1 |
37077B |
x |
9 |
|||||
|
1 |
37077 |
x |
? |
? |
9 |
|||||
|
20 |
Ball bearing |
1 |
102375 |
1542916 |
x |
x |
x |
x |
||
|
21 |
Ring, retaining - air cylinder cover |
2 |
37081 |
1542917 |
x |
x |
x |
x |
||
|
22 |
Cover, air cylinder |
1 |
37082 |
1542918 |
x |
x |
x |
x |
||
|
23 |
Ring, outer - air cylinder piston |
1 |
37083 |
1542919 |
x |
x |
x |
x |
||
|
24 |
Piston, air cylinder |
1 |
37072A |
1522920 |
x |
x |
x |
x |
||
|
25 |
Spring, piston - air cylinder (65 lb) |
1 |
37278 |
1542921 |
? |
x |
10 |
|||
|
Spring, piston - air cylinder (45 lb) |
1 |
37087 |
x |
? |
? |
10 |
||||
|
26 |
Screw, fil hd. mach. 10-24 x .88 |
13 |
102134 |
g132056 |
x |
x |
x |
x |
x |
|
|
27 |
Lockwasher - #10 |
13 |
100436 |
g446161 |
x |
x |
x |
x |
||
|
28 |
Washer - plain |
13 |
100003 |
g106497 |
x |
x |
x |
x |
11 |
|
|
13 |
1559174 |
x |
11 |
|||||||
|
29 |
Gasket - scroll cover |
1 |
37263 |
1542922 |
x |
x |
12 |
|||
|
30 |
Scroll Cover |
1 |
37639 |
1542923 |
x |
13 |
||||
|
1 |
37023A |
x |
? |
? |
13 |
|||||
|
1 |
1559172 |
x |
13 |
|||||||
|
31 |
Scroll Cover - Hose connection |
1 |
102436 |
1542924 |
x |
x |
x |
x |
||
|
1 |
1559173 |
x |
||||||||
|
32 |
Screw, hex hd. 5/16-24 x 1.25 |
1 |
102199 |
g181610 |
x |
x |
x |
x |
x |
|
|
33 |
Lockwasher 5/16 SAE med. |
1 |
100271 |
g120214 |
x |
x |
x |
x |
x |
|
|
34 |
Washer, retaining - impellor |
1 |
100350 |
41x95 |
x |
x |
x |
x |
||
|
1 |
41x97 |
x |
||||||||
|
35 |
Impellor |
1 |
37021 |
1542925 |
x |
x |
x |
x |
x |
|
|
36 |
Shim (Dulite Black) (.026 - .028) |
37018 |
1542926 |
14 |
||||||
|
37 |
Screw, hex hd. 1/4-20 x 1.25 |
6 |
102128 |
g180024 |
x |
15 |
||||
|
6 |
100822 |
x |
15 |
|||||||
|
Screw, hex hd. 1/4-20 x 1.125 |
4 |
G180023 |
x |
15 |
||||||
|
Screw, hex hd. 1/4-20 x 1.125 (drilled) |
2 |
1559950 |
x |
15 |
||||||
|
38 |
Lockwasher 1/4 SAE med. |
6 |
100246 |
g120392 |
x |
x |
x |
x |
||