The Yamaha 81 YT125H Tri Moto Chain Case Bearing by Koyo is a high-quality clutch bearing designed specifically for Yamaha vehicles. This bearing, with the OE/OEM part number 93306-00802 and manufacturer part number 83A618, is essential for ensuring smooth and efficient transmission of power in your ATV or side-by-side vehicle. It comes with the necessary items included for a complete replacement, making it a reliable and durable choice for your Yamaha 81 YT125H Tri Moto.