Part Type: HVAC Heater Core. 2007 Chevrolet Silverado 2500 HD Classic Submodel: Crew Cab Pickup; Engine: 6.0L V8; RPO Code D07; w/ Custom Front Floor Console;. 2007 Chevrolet Silverado 2500 HD Classic Submodel: Crew Cab Pickup; Engine: 6.6L V8; RPO Code D07; w/ Custom Front Floor Console;.
