Yamaha
Yamaha B4X-WB033-00-C0 - YZ125/YZ125X Piston Rebuilt Kits is a service part accessory that includes all parts needed to rebuild the top end of select Yamaha YZ125 and YZ125X models. Key Features & Benefits Genuine Yamaha forged aluminum piston for strength and heat resistance Complete top-end rebuild kit — piston, ring, wrist pin, circlips, gaskets, seals, and O-rings in one package Proven OEM fitment tested to Yamaha's durability and reliability standards One-stop rebuild — no separate sourcing of gaskets, seals, or small hardware Restores compression and power output to like-new levels Convenience and cost savings versus buying individual top-end components separately Fits These Yamaha Models Yamaha Model Compatible Years YZ125 2022-2027 YZ125X 2023-2027 Frequently Asked Questions What is Yamaha part B4X-WB033-00-C0? B4X-WB033-00-C0 is the Yamaha YZ125/YZ125X Piston Rebuilt Kits, an accessory kit for rebuilding the top end of select Yamaha YZ125 and YZ125X motorcycles. Is B4X-WB033-00-C0 a Yamaha accessory? Yes, B4X-WB033-00-C0 is classified as a Yamaha accessory for service and maintenance. Which Yamaha models fit B4X-WB033-00-C0? This piston rebuilt kit fits the Yamaha YZ125 models from 2022 to 2027 and YZ125X models from 2023 to 2027. Confirm the exact SKU and model year before ordering.
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