Radiator Size: Row: 3 Row Core Material: Full T-5056 Aluminium Core and Tank: All Aluminum OEM Style Brass Petcoke Aircraft Grade Aluminum 2mm Thick Tanks and Fittings Billet Fill Neck With Cap Transmission: Automatic and Manual. Why Choose Cubauto Radiator? 1. Maximum cooling efficiency 2. High security and performance 3. Excellent aluminum material 4. Stability and durability 5. Drop-in installation 6. High temperature resistance 7. Enhanced protection package Compatible with Chevy 1987-1991 Blazer V8 DIESEL/ GAS 1981-1984 C10/ C20/ K10 L6 GAS 1985 C10/ C20/ K20 V6 GAS 1981-1985 C10/ C20 V8 DIESEL/ GAS 1982-1986 C30 L6 GAS 1982-1986 C30 V8 DIESEL/ GAS 1988-1990 C1500/ C2500 V6 GAS 1988-1990 C1500/ C2500/ C3500 V8 DIESEL/ GAS 1985-1986 K10 V6 GAS 1982-1986 K10/ K20/ K30 V8 DIESEL 1981-1986 K10/ K20/ K30 V8 GAS 1981-1986 K20/ K30 L6 GAS GMC 1982-1984 C1500 L6 GAS 1985 86 88 89 C1500 V6 GAS 1982-1989 C1500 V8 DIESEL/ GAS 1979-1980 C1500 Suburban L6 GAS 1979-1984 C1500 Suburban V8 DIESEL/ GAS 1982-1986 C2500 L6 GAS 1985 86 88 89 90 C2500 V6 GAS 1982-1990 C2500 V8 DIESEL/ GAS 1982 1984 C2500 Suburban L6 GAS 1982-1986 C2500 Suburban V8 DIESEL/ GAS 1981-1986 C3500 L6 GAS 1982-1990 C3500 V8 DIESEL 1981-1990 C3500 V8 GAS 1973-1982 Jimmy L6 GAS 1982-1991 Jimmy V8 DIESEL 1973-1991 Jimmy V8 GAS (Fits 4.1L 4.3L 4.8L 5L 5.7L 6.2L 6.6L 7.4L)