Old onan Genset Alternator failure – what are my options?

[Nicholas]

The alternator on my 1989 vintage 8kw Onan genset failed, and broke the alternator bracket. Or possibly vice versa. When I turn the alternator, it doesn’t turn smoothly – it’s “lumpy” feeling, which I assume means bad bearings.

I believe the underlying engine is a kubota(?) and I may be able to find a replacement alternator, but I don’t know how I’ll ever find a replacement bracket.

The belt goes around the alternator, flywheel, and water pump. Thought about just getting a smaller belt and bypassing the alternator all together but I don’t know how I’d tension it correctly without the alternator.

We just left on what was supposed to be a couple of month trip south to Florida, would hate to not have a genset the whole time. Would also hate to have to replace the whole genset over $100 worth of parts.

Any suggestions?

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[Tony Athens]

I just bought 2 of these on Amazon ( 2 weeks ago) .. Probably the same unit.. Super cheap..

JOHN DEERE NEW PERMANENT MAGNET ALTERNATOR COMPATIBLE WITH John Deere Mower 2500 2500A 2500B 2653A 10939

Tony

[Nicholas]

Here’s a photo if anyone is curious. Crazy to see the bracket sheer on half like that

[Nicholas]

Turns out it was easier than I thought to find parts. Was able to order a new bracket. Alternator is proving tougher but I just need to find the right kubota cross reference.

[Author]

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