Timing Belt for Yamaha Outboard 6AH-46241-00-00 Sierra 18-15136 15hp - 20hp

Timing Belt for Yamaha

This timing belt provides precise camshaft synchronization for Yamaha outboard engines in the 15hp to 20hp range, replacing OEM part 6AH-46241-00-00 and Sierra 18-15136.

Overview

This timing belt is a direct replacement for Yamaha outboard motors rated at 15hp and 20hp, ensuring accurate valve timing and smooth operation. It is designed to match the exact dimensions and material specifications of the original belt, making it a reliable choice for marine engine maintenance. Whether you are a boat owner or a professional mechanic, this belt delivers dependable performance in saltwater and freshwater environments.

Built For Performance

• Fiberglass-reinforced cord for high tensile strength and minimal stretch
• Neoprene rubber construction resists oil, ozone, and temperature extremes
• Precision-molded teeth prevent slipping and ensure quiet operation
• Meets or exceeds OEM specifications for 6AH-46241-00-00 and Sierra 18-15136
• Designed for long service life in continuous-duty outboard applications

Fits These Machines

• for Yamaha 15hp outboard
• for Yamaha 20hp outboard

On-The-Job Use

• Replacing a failed timing belt on a Yamaha outboard during a routine service
• Restoring engine performance on older 15hp and 20hp Yamaha motors
• Supporting a full engine rebuild or top-end repair on a small outboard
• Maintaining reliable operation for commercial fishing or water sports boats

Specs At A Glance

Good To Know

Q: Is this timing belt compatible with my Yamaha outboard if it has a different serial number? A: This belt matches the OEM part 6AH-46241-00-00 and the aftermarket Sierra 18-15136, which are used on many Yamaha 15hp and 20hp engines. Verify your engine's serial number or current belt part for absolute certainty.

Q: What tools are needed to replace this timing belt? A: Standard hand tools including a socket set, torque wrench, and a flywheel holder are typically required. Always consult your engine's service manual for specific procedures and torque values.

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