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post #3 of Old 11-22-2019
capt jgwinks
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Last year I replaced my HBW50 with a New Age PRM60D from ASAP Supplies in the UK. It's a near-drop in replacement, the only difference being the shift lever is on the other side and goes the other direction. Both easily corrected for. Mounting bolt pattern and coupler are exactly the same. It uses cone clutches like a Kanzaki (used on Yanmars) and is much more robust and reliable than the Hurth. Beta uses them on some of their models. Cost was around $500 including shipping, less than rebuilding the Hurth which often doesn't work anyway. ASAP also had the drive plate cheaper than anyone else too.
Along with that I would put on new mounts and do the wire harness upgrade of not already done. Lots of posts here and the other forums about that. There's also an alternator bracket upgrade for the larger Universals, I don't know if that applies to the M12 or not. It was not needed on my old M15.
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