Wiseco W5746 Top End Gasket Kit Fits: Yamaha BW350T 1999, Grizzly 350 2007-13, Kodiak 400 1993-99, Moto-4 1999, YFM350 Warrior 1987-04, YFM350 WT Big Bear 1987-05, YFM350R Raptor 2005-13 Contains all the necessary gaskets and O-rings to rebuild your top end Wiseco gasket kits are made from the highest quality materials and engineered by Wiseco to ensure compatibility with Wiseco pistons and crankshafts Each gasket kit is sourced in-house to find the most reliable, high quality suppliers available Ensures a critical seal and superior durability that meets and exceeds OEM specifications