OTTO Excavator Parts Zx120 4Bg1 Intake Manifold 8972488530 897248-8530 8-97248853-0 For Isuzu OTTO Intake Manifold for ZX120 Excavators: Designed for Isuzu 4BG1 engine, with part numbers 8972488530/897248-8530/8-97248853-0. Optimizes air flow to maintain stable excavator operation.