Description
The Yanmar 129612-42290 is a genuine OEM A37.5 profile V-belt for Yanmar 3JH series marine diesel engines.
Why it matters
The V-belt drives the engine accessories, and on many installations the seawater pump, so losing it can mean losing engine cooling. Carry a spare.
Check your fitment
The engine models listed in the product specifications are a guide only. Always confirm against the parts catalogue for your engine’s model and serial number before ordering. If you are unsure, send us your engine plate details and we will check it for you.
Genuine Yanmar parts
We stock genuine Yanmar OEM parts, not pattern copies. If you need help identifying the right part for your engine, or want to book a service, get in touch.
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