Sierra 18-6457 Composite Serpentine Pulley for MerCruiser

The Sierra 118-6457 is a high-quality composite grooved pulley designed specifically for late model GM V-6 and V-8 marine engines. This durable aftermarket replacement pulley is engineered to meet OEM specifications while offering reliable performance in demanding marine environments.

Key Features:

• 3-inch outer diameter serpentine pulley design
• Compatible with 13/16-inch width serpentine belts
• Durable white composite construction resists corrosion
• Direct replacement for MerCruiser OEM part number 807757T
• Fits late model GM V-6 and V-8 MerCruiser stern drive engines

Sierra Marine engine parts are precision-manufactured to deliver the quality and durability you expect from OEM components at an exceptional value. This composite pulley provides smooth, quiet operation and long service life for your marine engine's accessory drive system.