Part Number 42AX274 having (CAGE Code 76040) and FSC 5315 Nails, Machine Keys, and Pins in stock with ready to ship. Get an instant quote for 42AX274 Key Flat Engine Oil 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.