Boatcrazy
Veteran Member
We cruise with a 1989 6.5kva Onan MDKD-53CR/26501B marine Genset. It is powered by a Kubota D950-B 3-cyl diesel eng, rated at 21hp, 1500rpm. With some 6200 hours on it, it runs great but has developed visible coolant leaks at the exhaust manifold and around the exhaust elbow. I think I need to replace them, but both parts show up as "obsolete", "not avail". The Exhaust manifold part no is "Onan 154-2475" which I'm told crosses to "179-2582"; the exhaust elbow is "Onan 155-2003". Does anyone have these 2 parts, new or used-but-serviceable, they would be willing to sell? Or know of a supplier somewhere that might have them? The exhaust manifold appears to be a cast piece, the exhaust elbow seems to be a welded fabrication. Replacement with a new genset is an option, but the old would need to be disassembled in place, hauled out in pieces, then a new unit disassembled, carried aboard in pieces, and reassembled in place----not a job I'd look forward to!