Sierra International 18-99061 Gasket Set 18-99061. The kit includes (1) 18-99060 Head Gasket (1) 18-99059 Head Gasket (1) 18-0826 Drain Screw Gasket (1) 18-0829 Cover Gasket (1) 18-99135 Exhaust Inner Cover Gasket (1) 18-0798 Exhaust Outer Cover Gasket...