Serpentine Belt for Mercury Optimax 3 cyl DFI 75-125HP - 57-892318, 57-8M0026410

Serpentine Belt for Mercury Optimax 3 cyl DFI 75-125HP

This serpentine belt is designed for Mercury Optimax 3-cylinder DFI outboard engines ranging from 75 to 125 horsepower, with OEM cross-reference numbers 57-892318 and 57-8M0026410.

Overview

This serpentine belt is a direct replacement for Mercury Optimax 3-cylinder DFI outboard engines in the 75-125HP range. It ensures reliable power transmission to the alternator, water pump, and other accessories. The belt is built to OEM specifications to match the original part for a perfect fit and performance.

Built For Performance

• Constructed from durable EPDM rubber for long life
• Designed to exact OEM specifications
• Resists cracking, stretching, and wear from marine environments
• Provides consistent tension and smooth operation
• Direct fit for Mercury Optimax 3-cylinder engines

Fits These Machines

• for Mercury Optimax 3-cylinder DFI 75HP
• for Mercury Optimax 3-cylinder DFI 90HP
• for Mercury Optimax 3-cylinder DFI 115HP
• for Mercury Optimax 3-cylinder DFI 125HP

On-The-Job Use

• Replacing worn or damaged serpentine belt on Mercury Optimax outboard
• Ensuring proper drive of alternator and water pump
• Performing routine maintenance on outboard engines
• Restoring engine performance after belt failure

Specs At A Glance

Good To Know

Q: How often should I replace the serpentine belt on my Mercury Optimax? A: It is recommended to inspect the belt annually and replace it every 3-5 years or if signs of cracking or wear appear.

Q: Is this belt compatible with Mercury Optimax engines from different years? A: This belt is designed for Mercury Optimax 3-cylinder DFI engines; verify your engine's year and serial number to ensure compatibility.

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