Description:

Replaces OEM for Yamaha Piston 4BD-11631-00-Y0, 29U-11631-00-Y0. Compatible with: 1983-1986 Yamaha Tri-Moto 225 YTM225, 1986-1988 Yamaha Moto-4 225 YFM225. Compatible with: 1992-2000 Yamaha Timberwolf 250, 1999-2004 Yamaha Bear Tracker 250. Compatible with: 2005-2006 Yamaha Bruin 250 YFM250B, 2007-2009 Yamaha Big Bear 250 YFM250B. Engineered and Tested to Exceed Original Equipment Standards and Performance.