Onan P218 starter Solenoid bolt size?

oldyankeebarn1390 said:

Anyone know the size and length of the two bolts that hold the starter solenoid in place on a Onan P218G? Looks (based on the diameter of hole in the starter frame) to be a 1/4" bolt, probably a metric fastener? Trying to do this without pulling the engine. 9*F in the garage today and have to work barehanded because of space limitations.

Thanks

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I don't know the exact size but I will look tonight on a spare starter if I have a chance. I am 95% sure it is std, everything else on the Onan is std units. The starter being sourced from Mitsubishi means there is a small chance its metric and I just can't remember off the top of my head.

What issues are you having with the solenoid? Working on a P series starter without pulling the engine is a tall task!! I tired working on starters in frame and finally said never again. :ROF

Solenoid is loose and one bolt is missing. Part of the on ging not starting electrical issues. I am able to access the solenoid from the underside by jacking the tractor up 3" (2 - 2x6 under each front tire) and a wheel chock behind each rear tire. I can easily access the missing bolt, the remain bolt is a phillips head cap screw. Can just get a 1/4" hex shaft phillips bit on it. It's 9* degrees in the garage and I do not want to pull the engine, with that entails. You know, the complete disassembly of the tractor.

The bolts for the P series with solenoid shaft on starter are the HE800-0039 which when I look up are a 5/16 -18 X 3, The nuts are serial number dependent

-599725 go HE526-00246
+599726 go HE526-00122

Deere part site is not working for me today, but found info here: https://sleequipment.com/onan-genuine-part-800-0039-screw.html#product_tabs_description_tabbed

The solenoid mounting bolts are 2 - 6mm x 22mm x 1.0. The originals were phillips head cap screws. Standard length HHB's are 6mm x 25mm x 1.0 I will replace with socket head cap screws with external star washers. This information is not in any Onan literature. I called my local Cummings/ONAN dealer and talked with the parts guy. He went thru all of the info that he had available to him from Onan and nothing. The bolts are called out as "included in the starter repair kit, Item #1, quantity 2 each." Which is the same information that I could find. By the way, the design of the solenoid mounting is such that one CANNOT use a HHB, no clearance for open end, box end or socket wrench. It has to be a socket head cap screw of some style, but NOT HHB!