OTTO Excavator Parts Sk60 4Jb1 Intake Manifold 8970114880 897011-4880 8-97011488-0 For Isuzu OTTO Intake Manifold for SK60 Excavators: Designed for Isuzu 4JB1 engine, with part numbers 8970114880/897011-4880/8-97011488-0. Optimizes air flow to maintain stable excavator operation.