Product Introduction 3406005-T0100 Power Steering Pump is the hydraulic power source for DFL4251 heavy truck steering assembly. Driven by engine power, it pressurizes steering fluid and delivers hydraulic energy to the steering gear to reduce the force required for turning the steering wheel. This aftermarket replacement pump resolves heavy steering feeling, intermittent assist failure and fluid leakage caused by worn internal rotor, damaged sealing components and stuck pressure relief valve of original pumps, keeping steering operation sensitive and lowering driving fatigue during long-distance highway freight transport.

Product Advantages Precision machined internal rotor group maintains stable pressure output under variable engine speed. Reinforced sealing structure provides reliable protection against oil seepage. Compact cast body fits the original mounting position without modification. Every pump undergoes hydraulic pressure and noise testing before shipment, stable fluid output and durable performance for heavy-load working conditions.

Applicable Models Fit for DFL4251 series heavy-duty commercial vehicles, widely used for long haul highway cargo transportation with hydraulic steering configuration.

FAQ

Q1: Will insufficient steering fluid directly shorten the service life of steering pump?
A1: Low fluid leads to air intake, cavitation and rapid abrasion of internal rotor components.
Q2: What maintenance work should be done after installing a new steering pump?
A2: Bleed air from the pipeline and run a test to check for abnormal noise or fluid leakage.
Q3: Can contaminated steering oil cause the pump pressure to become unstable?
A3: Impurities scratch internal precision parts and disrupt the normal pressure regulating function.