OTTO Excavator Spare Parts Tcm 4Jg2 Oil Overflow Valve 8941678820 894167-8820 8-94167882-0 For Isuzu This product is an oil overflow valve designed for use with the Isuzu engine model 4JG2 in TCM excavators. The part numbers associated with it are 8941678820, 894167-8820, and 8-94167882-0. This valve is important for controlling the oil flow within the engine, ensuring optimal performance of the specified equipment.