You Are Buying a Brand New Mercury Mercruiser Quicksilver OEM Part # 863903A01 EXCHANGER-HEAT. This heat exchanger is the one used on all Mercury/ Mercruiser 8.1L/ 496 engines.  It is the part used on all of the Standard (370HP/ 375HP) and HO (420HP/ 425HP) inboard and sterndrive model engines.  

This is OEM (original engine manufacturer) item's an original mercury part and is not an aftermarket. We are selling genuine mercury parts right from Mercury. This is a mercury direct factory OEM part and is shipping right to your door. This part is being sold at well below retail price. You will not find a lower price on a new Mercury OEM part. This comes from Mercury directly. Please e-mail me with any questions. All orders are in stock, orders paid ship out the next business day This item ships out ground.

View my 100% positive feedback and bid with confidence. All parts are brand new and in original packaging. This part weighs 22 lbs. 7 oz. The package dimensions are 26 inches long x 12 inches wide x 9 inches high

Please check with us and verify that this is the part you need. It is your responsibility to order the correct part. We will ship exactly what is ordered. Please make sure it is what you want before ordering.