Reproduction Of Original Correct Heater Only Box To Firewall Seal Also Fits 1959-1960 Passenger Car, Wagon And Sedan Delivery Without Air Conditioning 1959-1960 El Camino heater box seals are a critical replacement when working on any B-Body heater box. These El Camino heater box seals create an air-tight seam among critical heater box components. Using low quality or used heater box seals will lead air leaks and degrade the performance of your Chevrolet El Camino heating & air conditioning systems. The El Camino Store has sourced our seals to keep your 1959-1960 Chevy El Camino ventilation system performing its best for years to come.
