Sierra 18-15325 Marine V-Belt Cogged Replacement Belt

The Sierra 18-15325 V-Belt is a precision-engineered marine cogged drive belt designed as a direct replacement for Volvo Penta and Mercury Marine stern drive applications. Built to meet or exceed OEM specifications, this belt delivers dependable power transfer to critical engine accessories including the water pump and alternator.

Key Features:

• High-strength synthetic cords resist shock load failure and provide low-stretch performance for consistent, uniform operation over the life of the belt
• Special rubber compound compression section assures smooth and even transfer of load forces to the cords, reducing uneven wear and cord fatigue
• Precision-molded cogs engineered to exact tolerances to improve belt flexibility and maintain cord support throughout the full range of motion
• Large cog air channels promote circulation around the belt, keeping it cool and preventing heat buildup in the compression section
• Rubber edges maintain positive, no-slip contact with pulley grooves for reliable, efficient energy transfer

Specifications:

• Effective Length: 32-1/2 in. (82.6 cm)
• Top Width: 29/64 in. (11.5 mm)
• Replaces Mercury Marine: 57-77274A1
• Replaces Volvo Penta: 958303

Sierra is the marine aftermarket industry leader, and this V-belt is backed by Sierra's comprehensive warranty covering both parts and labor. A straightforward, cost-effective replacement that restores factory-level performance to your stern drive engine.