OTTO Excavator Parts Sh4503B 6Uz1 Exhaust Manifold 8980376220 898037-6220 8-98037622-0 For Isuzu This OTTO Excavator Part is an Exhaust Manifold (8980376220) designed for the SH4503B model with the 6UZ1 engine from Isuzu. It facilitates the proper exhaust gas flow from the engine, enhancing overall performance and efficiency.