99438 MerCruiser 170 470 485 IN STOCK 4 inch replacement marine heat exchanger mc312

IN STOCK! Exact replacement for the expensive MC item. Best warranty, price, delivery, quality! If you have a 3" diameter exchanger, see 77319. If you wish to convert your present 3" equipped engine with a 4", see our 470 conversion kit. If you have an inboard rather than an i...

IN STOCK! Exact replacement for the expensive MC item. Best warranty, price, delivery, quality! If you have a 3" diameter exchanger, see 77319. If you wish to convert your present 3" equipped engine with a 4", see our 470 conversion kit. If you have an inboard rather than an i/o, see our 78165. We reserve the right to ship various brands at no substitution in quality with same warranty to save shipping time for you.