This custom OULI race-grade gasket solves typical pain points of Yamaha YFZ 450 2004-2014, including crankcase oil seepage, internal pressure leakage and track sand/mud entering sealing gaps during intense off-road competition. It tightly seals engine lubrication and maintains internal compression, preventing power drop, component wear and electrical part corrosion caused by aged or deformed gaskets. Fully matching original outline and mounting points, it enables quick replacement during routine service and engine disassembly. Built to endure harsh track conditions, it features outstanding heat resistance, anti-impact and anti-aging properties, keeping stable sealing performance under long-term high-intensity use and cutting down frequent overhaul costs for this classic sport ATV.

Aftermarket replacement part for:
2013 Yamaha YFZ 450
2012 Yamaha YFZ 450
2009 Yamaha YFZ 450
2008 Yamaha YFZ 450
2008 Yamaha YFZ 450 SE
2008 Yamaha YFZ 450 SE II
2007 Yamaha YFZ 450
2007 Yamaha YFZ 450 Bill Balance
2007 Yamaha YFZ 450 SE
2007 Yamaha YFZ 450 SE II
2006 Yamaha YFZ 450
2006 Yamaha YFZ 450 Bill Balance
2006 Yamaha YFZ 450 SE
2005 Yamaha YFZ 450
2005 Yamaha YFZ 450 SE
2004 Yamaha YFZ 450
2004 Yamaha YFZ 450 SE