Vertex Complete cast rib A Piston kitRef : 9412DA / 1095034001

The VERTEX cast piston reference 22584A is an alternative original part designed for cross engines. Machined from aluminium, it features a neat finish and adheres to manufacturer specifications for standard replacement. Ideal for refurbishing a worn cylinder head or during an engine rebuild, this piston maintains a standard compression height to preserve the original behaviour of your YZ250.

• Piston diameter: Ø 66.340 mm
• Recommended bore diameter: 66.40 mm
• Oversize letter: A
• Compression: Standard
• Material: Aluminium (cast piston)

Main compatibilities: YAMAHA YZ 250 — check the year and engine reference before installation. Included in application lists for several YZ250 and some 250 cross models (refer to manufacturer data or your vehicle sheet).

Before installation, check the condition of the sleeve, the clearance between the piston and cylinder, as well as the wear of the rings. Installation requires special attention to the alignment of the rings and the use of a suitable running-in oil to ensure a good initial run-in. For any uncertainty regarding compatibility, consult your mechanic or the technical documentation for your motorcycle.