Yamaha WR 450 F (CJ 04) [2003-2004] - WÖSSNER forged pistons

WÖSSNER forged pistons for the Yamaha WR 450 F

The WÖSSNER forged piston is intended for the Yamaha WR 450 F (CJ 04) from the 2003-2004 model year range. The technical design supports a precise selection of engine design based on piston type, diameter, bore size and compression ratio.

Technical features

• Brand: WOSSNER
• Piston Type: Forged
• Material: aluminum
• Diameter Ø: 94.96 mm
• Bore diameter: 95.00 mm
• Letter oversize: A
• Oversize: STD
• Compression ratio: 12.3:1
• Number of piston rings: 2

Vehicle assignment

Suitable for Yamaha WR 450 F (CJ 04), built between 2003 and 2004. This assignment serves as a selection aid in addition to comparing the technical dimensions and characteristics.

Selection note

The diameter of 94.96 mm, the bore diameter of 95.00 mm and the markings “A” and “STD” are particularly relevant for identification. The compression ratio of 12.3:1 is also part of the specified technical data for this piston.

The piston is assigned to the engine, upper engine area and piston category. Before ordering, the vehicle name, the complete year of manufacture and the dimensions mentioned should be compared with the existing engine.