Yamaha WR 125 [PROX] – piston kit for 4-stroke

PROX piston kit for 4-stroke engines

The piston kit from PROX is specially designed for use in the 4-stroke engine of the Yamaha WR 125. This is a complete standard size A piston set that ensures precise fit and reliable functionality.

Technical features

• Brand: PROX
• Engine type: 4-stroke
• Piston size: 94.95mm
• Bore size: 95.00mm (standard)
• Displacement: 426 cm³
• Compression ratio: 12,5:1
• Piston material: Aluminum alloy
• Coating of piston skirt: uncoated
• Number of pieces: Kit (piston + rings)

Description

The piston kit includes all the necessary components to replace or maintain the piston in the Yamaha WR 125 engine. The piston is made of an aluminum alloy, which ensures good thermal conductivity and low weight. The standard bore of 95.00 mm and the piston size of 94.95 mm correspond to the original dimensions and allow for easy installation without adjustments.

The compression ratio of 12.5:1 is tailored to the requirements of the 4-stroke engine and supports efficient combustion. The uncoated surface of the piston skirt meets standard requirements and offers reliable function during engine operation.

This piston kit is part of the ENGINE GROUP and is delivered as a PISTON + RING KIT. It is suitable for replacement during maintenance or repair work and helps maintain engine performance.