Starter swap on a 1950 SA

[Ole Timey Farmin]

I keep having starter issues and I hate that pull rod starter switch. I may be wrong but will an H, SH, M, SM starter fit on an SA??? And don't they also use a key starting instead of the pull rod??? I want a starter that just a battery cable can bolt up to it with a relay between it and the battery. I can then connect a 3 position key switch to excite the relay to start it and have at least some form of theft protection. I just need to know if the H-SM starter used the pull rod or a relay and if it had a relay n bolt on wire, then will it fit. I think so as nose, armature, commutator are all the same and according to Steiner Tractor Parts, item # IHS244 starter has a threaded stud for battery cable. Fits H, HV, up to sn: 391357 & M, SM early up to sn: F28174 L504801.

[staninlowerAL]

Costs less $ to take your starter to a good starter/gen shop and have the "contact nub" replaced with a brass bolt. The shop can also check your starter for any needed repairs. In my area the cost for changing the post on a Cub starter, checking/cleaning and repairs is less than $100. JMHO

[Gary Dotson]

The H’s and M’s that I’ve worked on all had the threaded stud on the starter. They used the big push button switch, no relay. I’ve converted the neighbors H and M to a relay but just used a small push button, rather than the key switch. Your key switch plan should work fine. Perhaps someone else can report on interchangeability.