Part Number HDA-3706 having (CAGE Code 65408) and FSC 2940 Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft in stock with ready to ship. Get an instant quote for HDA-3706 Filter Element Intake Air Cleane by Heavy Duty Air 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.