HVAC Heater Core for Chevrolet C10 Pickup 1964-1966 K10 Pickup GMC G1000 Series

GMC G1000 Series 1964-1966 All Engine w/Standard Heater - 7-1/8" x 6-1/8", w/o AC. Chevrolet K10 Pickup 1964-1966 All Engine w/Standard Heater - 7-1/8" x 6-1/8", w/o AC. Chevrolet C10 Panel 1964-1966 All Engine w/Standard Heater - 7-1/8" x 6-1/8", w/o AC.