Yamaha YFM 350 Bruin 4 WD [2004-2006] - WÖSSNER cast piston

WÖSSNER cast piston for Yamaha YFM 350 Bruin 4 WD

The WÖSSNER cast piston is assigned to the Yamaha YFM 350 Bruin 4 WD from the years 2004 to 2006. As a component of the upper engine assembly, the piston supports the implementation of combustion in the cylinder. The aluminum version combines the key technical data of the piston with a cast design.

Technical features

• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Diameter Ø: 82.94 mm
• Letter oversize: A
• Oversize: STD
• Bore diameter: 83.00 mm
• Compression ratio: 10.5:1
• Number of rings: 3

Vehicle assignment

The piston is assigned to the Yamaha YFM 350 Bruin 4 WD in the full year range 2004-2006. This assignment makes selection easier based on model and year of manufacture.

Execution for engine overhaul

With the diameter of 82.94 mm, the bore diameter of 83.00 mm and the compression ratio of 10.5:1, the relevant piston data are clearly recorded. The marking “A” for oversize and “STD” for oversize belong to the specified version and should be taken into account when selecting parts. The 3 ring version complements the technical specification of the cast aluminum piston.