Yamaha Motor Co., Ltd. 3R9-25138-00-00 Meter Gear

The Yamaha 3R9-25138-00-00 Meter Gear is a precision gear that transmits rotational motion from the wheel to the speedometer in Yamaha motorcycle speedometer drive systems, enabling accurate speed indication. Commonly installed in Yamaha motorcycles and two-wheeled vehicle assemblies where precise gear engagement is required for consistent and reliable speed indication, it is designed for placement in the front wheel hub or drive housing and is integrated with the speedometer drive assembly. Constructed from hardened plastic or metal (OEM grade), the meter gear features precision gear teeth to ensure accurate rotation transfer and is engineered for long service life with wear-resistant operation. It supports model-specific Yamaha fitment and is used in maintenance, repair, and instrument system servicing projects requiring OEM-compatible gear components. Common replacement numbers include Yamaha 2A6-25138-00-00 Meter Gear, Yamaha 3Y1-25138-00-00 Meter Gear, and Yamaha 1T3-25138-00-00 Meter Gear.