Yamaha YZ 450 [PROX] – piston kit for 4-stroke

PROX piston kit for Yamaha YZ 450 4-stroke

The PROX piston kit is specially designed for the 4-stroke engine of the Yamaha YZ 450. This is a standard size A piston kit that provides a precise fit for the 450cc engine. The piston bore is 95.00 mm while the piston diameter measures 94.95 mm.

Technical features

• Brand: PROX
• Engine type: 4-stroke
• Bore: Standard size (95.00mm)
• Piston size: 94.95mm
• Material: aluminum alloy
• Compression ratio: 12.5:1
• Piston skirt: uncoated
• Quantity: Kit (piston + rings)

The piston is made of a high-quality aluminum alloy, which ensures good thermal conductivity and low weight. The piston skirt is uncoated, which allows it to be installed in the original cylinder and ensures reliable function. The compression ratio of 12.5:1 is tailored to the engine's requirements and supports efficient combustion.

Product application

This piston kit is suitable for use in the engine of the Yamaha YZ 450 and is delivered as a complete set. In addition to the piston, it also includes the appropriate piston rings to ensure optimal sealing in the cylinder. The standard bore allows for direct replacement without additional processing.

The PROX piston kit is intended for repair and maintenance work on the engine and helps restore engine performance. It is compatible with the original engine design and supports long life of the piston and cylinder liner.