Yamaha YZ125 Top End Gasket Kit - Vertex Pistons - 98-00 is a complete gasket set designed for rebuilding the top end of 1998–2000 YZ125 two-stroke engines. It supplies the necessary seals and gaskets for an accurate top-end refresh.

This Vertex kit includes every gasket, o-ring, and seal required to rebuild the top end of a single-cylinder YZ125; for multi-cylinder machines, kits include enough components to rebuild all cylinders. The parts are manufactured to match OEM dimensions for proper fit and reliable sealing during reassembly. Note: this kit does not include the formed rubber valve cover gasket.

Features

• Complete set of top-end gaskets, o-rings and seals for 1998–2000 YZ125
• Vertex Pistons brand components manufactured to OEM specifications
• Includes parts needed for a full top-end rebuild (per cylinder)
• Does not include formed rubber valve cover gasket

If you have questions about fitment, torque specs, or installation options, call us directly — we’re happy to help. We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. Call us at 512-982-9393 (TX) or 562-981-6800 (CA).

If you plan to purchase multiple items, please contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov