Precision engineered for todays sophisticated engines Designed for superior durability at high rpm Low wear means years of dependability This Item Fits the Following Applications: 1996-1999 Yamaha YFM350U Big Bear 2x4 1995-2000 Yamaha YFM350F Wolverine 4x4 1987-1999 Yamaha YFM350FW Big Bear 4x4 1987-1995 Yamaha YFM350ER Moto-4