If your heater leaks more warm air than it delivers, its time to rebuild it with these quality rubber seals. #323 Standard heater seal kit includes the defroster seal. This kit fits all 1955-56 Chevy models with a standard heater. Proudly

Note: Chevy offered 2 heaters in the 1955-56 model year. The standard heater and deluxe heater. Standard heaters had a switch under the dash that turned the heater on and off. Deluxe heaters had the heater levers in the dash which controlled the heat as well as the blower.