Notes: Engine Harmonic Balancer Pulley. 1987 Chevrolet Blazer 5.0L V8. 1995-2005 Chevrolet Blazer 4.3L V6. 1987-1994 Chevrolet Blazer 5.7L V8. Condition: New. Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience.