1984 1988 G Body Crossmember RCG 8L90 thermostats and parts Body Length (IN) 30 Body 49449 FBHB Body Length (IN) 30 Body Type Round Finish High Heat Thermal Mesh Inlet Configuration Center Inlet Diameter (IN) 4 Material 409 Grade 16 Gauge Stainless Steel Outlet Configuration Center Outlet Diameter (IN) 4 Overall Length (IN) 36 Prop 65 Short Label prop65_warning 20030 ZE00B Fits Models: Year Make Model Submodel 1982 1986 Pontiac Bonneville 1978 1987 GMC Caballero 1978 1981 Buick Century 1978 1981 Oldsmobile Cutlass Calais 1980 1983 Oldsmobile Cutlass Cruiser 1978 1980 Oldsmobile Cutlass Salon 1978 1988 Oldsmobile Cutlass Supreme 1978 1987 Pontiac Grand Prix 1978 1981 Pontiac LeMans 1978 1983 Chevrolet Malibu 1978 1988 Chevrolet Monte Carlo 1978 1988 Buick Regal