For 1991 GMC V3500 HVAC Heater Core 4 Seasons

1991 GMC V3500 w/ A/C;. Part Type: HVAC Heater Core. Aluminum Heater Core. Heater Core. Compatible Years: 1991. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.