OTTO Excavator Parts Zx450-3 6Wg1T Intake Manifold Gasket 8976075980 897607-5980 8-97607598-0 For Isuzu OTTO Gasket for ZX450-3 Excavators: Designed for Isuzu 6WG1T intake manifold, part nos. 8976075980/897607-5980/8-97607598-0. Prevents leaks for stable operation.