1987 - 1990 GMC S15 V6-2.8L; RWD & 4WD. 1987 - 1989 GMC S15 Jimmy V6-2.8L; RWD & 4WD. 1987 - 1989 Chevrolet S10 Blazer V6-2.8L. 1987 - 1993 Chevrolet S10 V6-2.8L. It effectively maintains the engine temperature within optimal ranges, preventing overheating and promoting smooth operation.
