Cylinder Piston Gasket End Rebuild Kit For 1987-04 Warrior 350 YFM350 Fit For: Big Bear 350 4x4 (YFM350FW) 1987-1999 Big Bear 350 2x4 (YFM350U) 1996-1999 Bruin 350 4x4 (YFM350FA) 2004-2006 Bruin 350 2x4 (YFM350A) 2004-2006 350 2x4 (YFM350G) 2007-2011 350 4x4 (YFM350FG) 2007-2014 350 4x4 IRS (YFM350FGI) 2007-2011 Moto-4 350 (YFM350ER) 1987-1995 350 (YFM350R) 2004-2013 Warrior 350 (YFM350X) 1987-2004 Wolverine 350 4x4 (YFM350FX) 1995-2005 Wolverine 350 2x4 (YFM350X) 2006-2009 : 1UY-11310-03-00, 4KB-11351-00-00, 93450-19095-00, 4GB-11610-00-00, 1YW-11631-01-Y0, 55V-11633-00-00, 1UY-11181-01-00, 5YT-11310-00-00, 4WU-11310-00-00, 1UY113100300, 4KB113510000, 934501909500, 4GB116100000, 1YW1163101Y0, 55V116330000, 1UY111810100, 5YT113100000, 4WU113100000 Specification: Material: Aluminum Type: Cylinder Piston Gasket End Rebuild Kit Placement on Vehicle: Front, Left, Lower, Rear, Right, Upper Actual Displacement: 348 cc Bore Size: 83 mm Piston Diameter: 82.95 mm Piston Height: 58.8 mm Piston Pin Diameter: 19 mm Piston Pin Height: 65 mm Stroke: 64.50 mm Include: 1 Cylinder Block 1 Piston 5 Piston Rings 1 Wristpin 2 Circlips 1 Head Gasket 1 Base Gasket 1 Spark Plug Feature: Gasket with sealing performance and leakage prevention Promotes combustion and supports horsepower output Provides heat dissipation for improved driving experience Resistant to wear and heat for extended service life Meets standard specifications and fitment for direct replacement