The BIG BEAR series consists of several YAMAHA ATV models including 250, 350, 400, 2WD, 4x4, IRS Exploring, Buckmaster, Real Tree, Hunter Camouflage, IRS Camouflage YFM25FB, YFM350U, YFM350FW, YFM400, YFM400F, YFM40F and more. These ATVs are from the years 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 and 2010. Wholesale Batteries Direct has the high quality Conventional, Dry Charge, Sealed AGM or Heavy Duty Sealed AGM batteries that you want to buy at discount prices to replace the original OEM battery from your Yamaha Big Bear ATV. We carry the batteries for nearly all Yamaha All Terrain Vehicles, 4x4, Quad, 4-wheel and 3-wheel. The rugged design of our Heavy Duty Sealed AGM V-Twin batteries offer greater vibration resistance. All of our batteries come with a full 1 year warranty.