3" Serpentine Belt Idler Pulley 18-6457, 807757 for Mercruiser GM V6 V8

Includes: - 3" Serpentine Belt Idler Pulley

Fits Models: - Mercruiser GM V6 and V8 engines

Model Years: - Check fitment before purchase

Submodels: - Applies to listed models

Engine Options: - Common engine sizes include 4.3L V6, 5.0L V8, 5.7L V8, and 6.2L V8

Description: This 3" serpentine belt idler pulley is designed for use with Mercruiser GM V6 and V8 engines. It is a direct replacement part that helps maintain proper belt tension and alignment, contributing to the smooth operation of your engine's accessory drive system.

Features: - Durable construction for long-lasting performance - Precision-engineered for a precision fitment - Helps reduce belt wear and noise - Hassle-free installation

Part Number: 18-6457, 807757