YAMAHA YZF 400 1998-1999 WRF 400 1998-2002 GRADE B 91.94mm STANDARD COMPRESSION 12.5:1

Vertex High-Performance Four-Stroke Piston

Upgrade your engine reliability and performance with the Vertex four-stroke piston. Engineered for demanding environments, this piston is forged from high-quality 2618 aluminum alloy, providing the structural integrity required to withstand the high pressures and extreme conditions of modern four-stroke engines.

Vertex is renowned for precision engineering, ensuring your engine runs at its peak. This Grade B piston is manufactured to specific tolerances to ensure a perfect fit within your cylinder, which helps maximize power output while significantly reducing blow-by and oil consumption.

Key Features

• Advanced Alloy Construction: Forged from 2618 aluminum alloy for superior strength and durability under high-stress conditions.
• Molybdenum Disulphide Coating: Features a specialized MOS2 coating on the piston skirt to assist in the initial break-in process and minimize long-term friction and wear.
• Optimized Performance: Designed with a standard compression ratio of 12.5:1 to maintain engine efficiency and throttle response.
• Precision Sizing: Engineered as a Grade B component at 91.94mm to ensure exact cylinder clearance, improving overall engine sealing and longevity.

Whether you are performing a full engine rebuild or a routine top-end refresh, choosing Vertex components ensures that your engine is equipped with parts designed for performance and reliability.