Yamaha YZ 400 F (CH 03) [1999] - forged pistons

PROX forged pistons for Yamaha YZ 400 F (CH 03), built in 1999

The PROX forged piston is designed as a replacement piston for the Yamaha YZ 400 F (CH 03) built in 1999. The selection is based on the specified piston dimensions, oversize and standard piston compression.

Design and technical features

• Material: aluminum
• Piston Type: Forged
• Piston compression: standard
• Diameter Ø: 91.96 mm
• Letter oversize: B
• Oversize: +0.01
• Rings Quantity: Set
• Stroke: 4T
• Specificity: hollow piston / 5 valve pockets

Vehicle assignment

The forged piston is assigned to the Yamaha YZ 400 F (CH 03), built in 1999. The diameter of 91.96 mm, the marking B and the oversize +0.01 are particularly important for the selection.

Factual information on selection

Please compare the technical characteristics of the existing piston and the required oversize before ordering. The version with hollow pistons and 5 valve pockets is intended for the specified 4T engine. The scope of delivery is listed as a set with the indication “Rings Quantity”.