Heater Core, Fits Select 1975-1996 Chevrolet/GMC Trucks, Blazer, Jimmy, Suburban, See Fitment Tab for All Applications, With A/C, Copper/Brass Tank/Core, Core: 7 1/8 in. x 7 1/2 in. x 2 in., Inlet: 5/8 (.625) in., Outlet: 3/4 (.750) in.|JEGS Heater Core Fits Select 1975-1996 Chevrolet/GMC Trucks, Blazer, Jimmy, Suburban With A/C [Copper/Brass].