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Tighten the mounting bolts securely to the manufacturer's recommended torque specifications
Loosen the hose clamps and detach the inlet and outlet water hoses
Remove the old impeller using pliers or an impeller puller tool
Locate the existing temperature sender on the engine block or cylinder head
Alternator V-Belt – Fits Yanmar 3JH2, 3JH3, 3JH4E Marine Diesel Series (Replaces 129940-42310, 129940-42310E) 465HP See our full policy pageProduct Details This is a genuine replacement Alternator V Belt designed for a range of Yanmar marine diesel engines, specifically the 3JH series models including 3JH2 E, 3JH2 TE, 3JH3E, and 3JH4E (1999present). It ensures reliable power transmission from the crankshaft to the alternator, maintaining your engine's electrical system performance. This part is a direct interchange for Yanmar part numbers 129940 42310, 129940 42310E, 171087 42280, and
