Cummins 3406G1-010 Power Steering Pump Assembly

The 3406G1-010 is a hydraulic power steering pump engineered for Cummins B, C, L, ISDE, QSB, QSC, QSL, M11, NTA855, and KTA series diesel engines. It utilizes a gear-type pumping mechanism driven by the engine accessory drive to provide hydraulic assist pressure for steering gear operation. Constructed with a high-strength cast iron or steel housing and precision-machined internal gears, the unit is designed to withstand continuous operating pressures up to 14 MPa (2000 PSI) and flow rates sufficient for heavy vehicle steering demands. The pump features a standard SAE flange mounting configuration and threaded hydraulic ports for direct installation on compatible Cummins engine platforms. It serves as a direct interchange for OEM part numbers 3406G1010 and 3406G010C, and is widely applied in Sinotruk Howo series trucks and various construction equipment including excavators, wheel loaders, and backhoes powered by Cummins engines.