OTTO Excavator Parts Zx330-3 6Hk1T Intake Manifold Gasket 8976017770 897601-7770 8-97601777-0 For Isuzu OTTO Gasket for ZX330-3 Excavators: Designed for Isuzu 6HK1T intake manifold, part nos. 8976017770/897601-7770/8-97601777-0. Prevents leaks for stable manifold operation.