Allison Marine MH25 & 25R Transmissions. Engines were the Detroit Diesel 671 Naturals and Gear boxes removed from a 65 ft. Professional fishing boat. I need the engines not the Gear boxes. They come with good clutches, flywheel, oil pumps, 2 inch prop shaft couplers, all in good working condition. I prefer to sell as a working set, not separate. They weigh about 600 pounds each with flywheel, coupler, & clutch. The price is 00.00, each complete, ,000.00 both complete, set.