Part Number 0378421 having (CAGE Code 21119) and FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components in stock with ready to ship. Get an instant quote for 0378421 Ring Set Piston by Evinrude Motors Product Group Of. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.