OTTO Excavator Parts Sk60 4Jb1 Intake Manifold Gasket 8972125400 897212-5400 8-97212540-0 For Isuzu OTTO Gasket for SK60 Excavators: Designed for Isuzu 4JB1 intake manifold, part nos. 8972125400/897212-5400/8-97212540-0. Prevents leaks for stable manifold operation.