
92MM PISTON RING SET by VERTEX (manufacturer part number: 590392000002) — a set of rings designed for cross engines requiring a bore of 92 mm. Designed to ensure sealing between the piston and the cylinder wall, this ring set plays a crucial role in engine compression and oil consumption control. An essential maintenance item during a piston rebuild or re-boring.
Common compatibilities (examples): YAMAHA WR 400 F (CH04) 2000, YAMAHA YZ 400 F (CH03) 1999, YAMAHA YZ 400 F (CH01) 1998. Before installation, check the bore and piston reference to confirm compatibility. Always replace the complete set to ensure even wear and follow manufacturer recommendations during break-in and adjustments.
This product is intended for riders concerned with rigorous engine maintenance. No guarantee of specific installation or performance is included; adhere to workshop procedures for installation.