D4 or B4 Airtronic Burner Gasket

D4/B4 Burner gasket is in between the burn tube and heat ex-changer. The gasket becomes brittle over time and can crack resulting in a poor burn and/or exhaust fumes entering the cabin. This gasket should be replaced whenever the heater is disassembled. This product will fit on any 12 or 24 volt D4 or B4 Airtronic heaters.