OTTO Excavator Parts Nkr77 4Jh1 Intake Manifold 8971923270 897192-3270 8-97192327-0 For Isuzu OTTO provides excavator parts, particularly focusing on the intake manifold designed for Isuzu Nkr77 vehicles and Isuzu 4Jh1 engines. This intake manifold is identified by three distinct part numbers, which facilitate accurate identification and procurement processes: 8971923270, 897192-3270, and 8-97192327-0