OTTO Excavator Parts Sh450-3B 6Uz1 Exhaust Manifold Gasket 1141491840 114149-1840 1-14149184-0 For Isuzu This OTTO Excavator Parts Sh450-3B 6Uz1 Exhaust Manifold Gasket, with part number 1141491840, is designed for Isuzu engines. It maintains a tight seal in the exhaust system to optimize engine performance and efficiency.