NAMURA PWC Yamaha Piston Kit NW-40003-2 - Replacement Engine Components

Namura piston kits come with the piston individually wrapped; a set of OEM quality rings packed in their own box, a wrist pin, and circlips.

• MOS2 (Teflon/Molybdenum) Coated Skirts: A rolled-on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction, and helping to eliminate cold seizures.
• Machined Smooth Heads: Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%.
• Anodized Domes: Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons.
• Hypereutectic Casting Process: Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.

Namura gaskets are manufactured to OE-specs, which means no trimming or fitment issues. Our materials are explicitly selected for their temperature, oil, fuel, and coolant-resistant qualities as well as tested using ASTM standards. Each design is evaluated against rigid quality-control standards to ensure each set meets or exceeds OE performance.

The NAMURA PWC Yamaha Piston Kit NW-40003-2 is designed to restore optimal performance to your personal watercraft engine. This high-quality piston kit is engineered specifically for Yamaha models, ensuring a precise fit and reliable operation. Crafted from durable materials, it offers excellent wear resistance and longevity, making it a dependable choice for ongoing maintenance or rebuild projects.

Featuring advanced piston technology, the NAMURA NW-40003-2 helps improve power output and engine efficiency. Its design supports smooth combustion and reduces engine vibrations, contributing to better handling and overall ride quality. Whether you’re performing routine maintenance or repairing damage, this piston kit provides the right components to get your watercraft back on the water quickly and efficiently.

The kit includes all necessary parts for installation, simplifying the rebuild process. Designed with attention to detail, the NAMURA Piston Kit ensures a secure fit and optimal sealing, helping prevent engine leaks and maintain compression. Its compatibility with Yamaha PWC models makes it a trusted choice for enthusiasts and professional mechanics alike. Invest in the durability and performance of your watercraft with the NAMURA NW-40003-2 piston kit, engineered for precision and lasting reliability.

Features:

• Designed specifically for Yamaha personal watercraft for precise fit and performance

• Constructed from durable materials offering excellent wear resistance

• Engineered to improve engine power output and fuel efficiency

• Supports smooth combustion and reduces vibrations for better handling

• Includes all necessary components for straightforward installation