Serpentine Belt Idler Pulley MerCruiser 4.3-8.1L

This serpentine belt idler pulley is designed for MerCruiser engines, specifically models ranging from 4.3 to 8.1L.

• Brand: MerCruiser | Fitment: 4.3L to 8.1L engines
• Key Measurement: Idler pulley for serpentine belt system
• Application: Direct replacement for reliable engine performance