Part Number 4ME21381P1 having (CAGE Code 89619) and FSC 2990 Miscellaneous Engine Accessories Nonaircraft in stock with ready to ship. Get an instant quote for 4ME21381P1 Pipe Exhaust by Mack Trucks Inc. 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.