Wiseco 54.00 mm Piston Kit for GasGas, Husaberg, Husqvarna and KTM (RE904M05400)

The Wiseco RE904M05400 piston kit is engineered for high-performance GasGas, Husaberg, Husqvarna, and KTM applications requiring dependable strength, precise fitment, and long-term durability. Built from Wiseco’s 2000 Series alloy, this piston is designed to withstand extreme operating conditions while maintaining a lightweight profile for responsive engine performance. Its dedicated forging process increases structural strength without adding unnecessary mass, making it well suited for demanding off-road and competition environments.
Premium-quality piston rings are included to promote effective combustion sealing and consistent performance for the intended application. The ArmorFit™ skirt coating is engineered to conform to the cylinder bore, helping improve piston control, reduce friction, and minimize wear during operation. This coating supports smooth movement through the bore while contributing to reliable engine performance across changing loads and temperatures.
Wiseco ArmorPlating® protects the piston crown from harmful detonation and reinforces key areas for improved durability. The treatment also helps protect the wrist-pin bore against wear and deformation while supporting improved ring seal for extended service life. Together, these technologies provide enhanced resistance to the stresses associated with high-output engines and demanding riding conditions.
Made in the USA, the Wiseco RE904M05400 piston kit combines precision manufacturing with application-focused engineering. It is a dependable replacement or performance upgrade for compatible GasGas, Husaberg, Husqvarna, and KTM engines. Verify vehicle and engine compatibility before installation, and follow the manufacturer’s recommended installation procedures, clearances, and break-in requirements.

Features:

• 2000 Series alloy: Provides high strength for extreme operating conditions while maintaining a lightweight piston design.

• Dedicated forging: Enhances structural strength and reduces unnecessary weight for responsive engine performance.

• Premium-quality piston rings: Improve combustion sealing and support consistent performance for the intended application.

• ArmorFit™ skirt coating: Conforms to the cylinder bore for improved piston control and reduced wear.

• ArmorPlating® crown protection: Helps protect against harmful detonation and increases piston durability.

• Improved pin-bore protection: Helps reduce wear and bore deformation around the wrist-pin area.

• Enhanced ring seal: Supports long service life and reliable engine performance.

• Made in the USA: Manufactured with precision-focused quality and application-specific engineering.

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