OTTO Excavator Parts Zx450-3 6Wg1T Exhaust Manifold 8981425020 898142-5020 8-98142502-0 For Isuzu The OTTO Excavator Parts Zx450-3 6Wg1T Exhaust Manifold 8981425020 898142-5020 8-98142502-0 For Isuzu is a component designed to channel exhaust gases away from the engine efficiently.