Starter help needed

[nc plumber]

Are these 2 starters interchangeable ? I pulled the rusty one from a '47 Dodge coupe, has ps291 on the nose, no tag. The other from a '47 Plymouth, has ps1253 on the nose, tag MZ-4133. The rusty one turns very slow and draws a large amp load. I will rebuild it if I can figure out what it is. 

[Go Fleiter]

You may carefully check and compare dimensions:

-hole distance and diameter,

-Distance flange - top of starter

-number of teeth (left one seems to have less - may work anyhow but turn flywheel slower!) of the pinion

-diameter of the pinions

-Pinion axle vs. flange holes

-travelways of pinions (reeled out / in)

 

If matching, make "field test" in the car.

If it fits, timidly try to power the new starter...

Good Luck!

Go

 

Edited September 11, 2020 by Go Fleiter

[MarkAubuchon]

Id say no,  whats wrong with cleaner looking one?  Is that the one that came out of your car?

[pflaming]

The dirty one is too long. I have a rebuilt starter I don’t need. 

[nc plumber]

The dirty starter is the one I removed from my Dodge. I was wanting to install the other one.

[Jerry Roberts]

MZ- 4133 fits 1946 - 1948 Dodge , also 1946 - 1948 Plymouth . From Auto-Lite catalog . 

[nc plumber]

Turns out that the starters do interchange, ?.   I would still like to find out the brand and model of the rusty starter so that I can get some rebuild parts for it.