Yamaha YZ 250 (CG 20) [2005] - Piston kit

VERTEX piston kit for Yamaha YZ 250 (CG 20), built in 2005

The VERTEX piston kit supports the overhaul of the upper engine area of the Yamaha YZ 250 (CG 20) in the entire 2005 model year range. It bundles the parts intended for replacing the piston and the associated components in one kit, thereby making it easier to put together the required components.

Function and scope of delivery

The kit is designed for a 2T application and contains the relevant components for changing pistons as well as the seal in the upper engine area.

• Piston made of cast aluminum
• Piston rings, 2 pieces
• Piston pin
• safety clips
• Top end gasket kit
• Needle bearing for the piston pin

Technical data

• Piston compression: standard
• Diameter Ø: 66.35 mm
• Letter oversize: B
• Bore diameter: 66.40 mm
• Stroke: 2T

Vehicle assignment

The VERTEX piston kit is assigned to the Yamaha YZ 250 (CG 20), built in 2005. The vehicle assignment refers to this model type and this year of manufacture.

Selection guide

The specified piston diameter of 66.35 mm, the bore diameter of 66.40 mm and the oversize letter B are particularly important for the selection. The technical data should be compared with the existing engine and the intended spare part before ordering.