Part Number 89422A having (CAGE Code 76700) and FSC 2990 Miscellaneous Engine Accessories Nonaircraft in stock with ready to ship. Get an instant quote for 89422A Cap Assembly Protective Muffler by Cummins Filtration 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.