Motorcycle Engine Cover Seal BN600i TNT 600 Fit For BN600 BJ600 TNT600 TNT 600 BN600i; dedicated cylinder head sealing gasket fits engine cylinder head mating surface die cut OEM outline with aligned bolt holes; fits mounting position directly without or grinding tight elastic sealing layer blocks coolant oil seepage; holds stable seal under engine temperature pressure multi layer composite blank base; integrated hot pressing craft; uniform texture across full gasket surface OEM matched overall size hole spacing; consistent thickness to balance clamping force after bolt tightening