OTTO Excavator Parts Zx450 6Wg1 Exhaust Manifold Gasket 1141451820 114145-1820 1-14145182-0 For Isuzu This OTTO Excavator Parts Zx450 6Wg1 Exhaust Manifold Gasket 1141451820 is designed for Isuzu engines to help maintain and regulate optimal operating temperatures.