Part Number 7743X having (CAGE Code 49576) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 7743X Valve Assembly Com by Quincy Compressor Division Of Coltec. 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.