Yamaha RD 350 [PROX] – piston kit for 2-stroke

PROX piston kit for 2-stroke engines

The piston kit from PROX is specially designed for use in the 2-stroke engine of the Yamaha RD 350. It includes all the necessary components to replace the piston and piston rings, maintaining the performance and reliability of the engine.

Technical features

• Brand: PROX
• Bore size: 65.50 mm (oversize +1.50 mm)
• Displacement: 350 cc
• Piston material: aluminum alloy, cast
• Coating piston skirt: Moly coating
• Compression ratio: standard
• Engine type: 2-stroke
• Quantity: Complete kit (pistons and rings)

Product description

The piston made of a robust aluminum alloy has a moly coating that reduces wear and improves gliding ability in the cylinder. The oversize of +1.50 mm allows for precise adjustment on machined cylinders to ensure optimal engine performance.

In addition to the piston, the kit also contains the matching piston rings, which ensure reliable sealing and efficient combustion. The compression ratio remains in the standard range, allowing for easy integration into the production engine.

The PROX piston kit belongs to the ENGINE GROUP product group and is listed under the manufacturer number 01.2020.150. It is suitable for replacement as part of maintenance or repair work on the 2-stroke engine of the Yamaha RD 350.