Aftermarket replacement part for:
Big Bear 400 Yfm400 2wd, Big Bear 400 Yfm400 4wd, Big Bear 400 Yfm400f Buckmaster, Big Bear 400 Yfm40fb 4wd, Big Bear 400 Yfm40fb 4wd Hunter , Big Bear 400 Yfm40fb 4wd Hunter Irs , Big Bear 400 Yfm40fb 4wd Irs , Big Bear 400 Yfm40fb Irs , Big Bear 400 Yfm40fb Irs Exploring , Wolverine 350 Yfm35fx

This OULI stator cover gasket is a premium direct replacement for aged, cracked and leaking stock gaskets on Yamaha Big Bear 400 4WD ATV. It fixes common troubles including thermal brittleness, slight flange warpage, persistent oil weeping and mud water intrusion in wild off-road environments. It forms a tight oil-tight and airtight seal between crankcase and stator cover, locking internal lubricants and blocking silt, rain splash and corrosive humid air. It protects stator coils and internal engine precision parts from rust and abrasive wear, maintaining stable ignition and steady power output for farm work, mountain trail and daily outdoor use. Made to strict OEM dimensions, it supports quick DIY replacement during routine maintenance, cuts repeated repair costs and prolongs engine and charging system service life。