Yamaha WR 450 F (DJ 03) [2012-2015] - forged pistons

PROX forged pistons for Yamaha WR 450 F

The PROX forged piston is designed for the Yamaha WR 450 F (DJ 03) in the 2012-2015 model year range. As a forged aluminum version, it supports a resilient design of the piston in the 4-stroke engine.

The special alloy is designed to minimize friction and thus create the basis for reliable engine operation. The standard compression makes the choice easier if the original compression is to be retained.

Technical features

• Piston type: forged
• Material: aluminum
• Piston compression: standard
• Diameter: 94.95mm
• Letter oversize: A
• Oversize: STD
• Rings Quantity: Set
• Stroke: 4T
• Specificity: hollow piston / 5 valve pockets

Vehicle assignment

The forged piston is assigned to the Yamaha WR 450 F (DJ 03), built between 2012 and 2015. Before ordering, check the specified piston diameter of 94.95 mm as well as the A and STD markings based on the existing engine.

Selection guide

The combination of forged aluminum construction, standard compression and hollow piston with 5 valve pockets offers a clearly defined configuration for the mentioned 4-stroke engine. The set of rings and the specified dimensional data support the targeted selection of the appropriate piston within the vehicle assignment.