Serpentine Belt Idler Pulley For MerCruiser 4.3L / 5.0L / 5.7L / 6.2L - 864625T

Serpentine Belt Idler Pulley for MerCruiser

This serpentine belt idler pulley for MerCruiser is a direct replacement for the original idler pulley in marine engines, designed to maintain proper belt tension and reduce vibration; OEM cross-reference number 864625T ensures accurate fitment.

Overview

This serpentine belt idler pulley for MerCruiser engines provides smooth operation for your boat's accessory drive system. Made for MerCruiser 4.3L, 5.0L, 5.7L, and 6.2L models, it replaces worn pulleys to prevent belt slippage. The pulley is a critical component for reliable engine performance on the water.

Built For Performance

• Sealed bearing design for corrosion resistance in marine environments
• Precision-machined steel pulley for reduced friction
• Direct bolt-on installation with no modification required
• Matches OEM dimensions for perfect belt alignment
• Rust-resistant coating for long service life

Fits These Machines

• for MerCruiser 4.3L
• for MerCruiser 5.0L
• for MerCruiser 5.7L
• for MerCruiser 6.2L

On-The-Job Use

• Marine engine serpentine belt systems
• Boat engine accessory drives
• Alternator and water pump belt routing
• Idler pulley replacement during belt service

Specs At A Glance

Good To Know

Q: Will this pulley fit my MerCruiser 4.3L? A: Yes, this idler pulley is designed for MerCruiser 4.3L, 5.0L, 5.7L, and 6.2L engines. Check your engine serial number for exact compatibility.

Q: How often should I replace the idler pulley? A: It is recommended to replace the idler pulley whenever you replace the serpentine belt or if you notice noise or wobbling from the pulley.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.