OTTO Excavator Ex120 4Bg1 Injector Pump Pipe 8970211720 897021-1720 8-97021172-0 For Isuzu The OTTO Excavator Ex120 4Bg1 Injector Pump Pipe 8970211720 is a crucial component for Isuzu engines. This injector pump pipe is designed to ensure efficient fuel delivery and injection processes in the engine system, contributing to optimal performance and functionality.