Part Number RNG-621 having (CAGE Code 31042) and FSC 2805 Gasoline Reciprocating Engines, Except Aircraft; and Components in stock with ready to ship. Get an instant quote for RNG-621 Ring Set Piston by C M P Corporation. 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.