7685501247 | Genuine Paccar® Power Steering Hydraulic & Fuel Lift Pump Assembly

1. Reduce steering effort

• Supplies pressurized hydraulic fluid to the steering system, making it easier to turn heavy wheels or rudders.

2. Improve control and safety

• Ensures smooth, responsive steering for better handling of heavy vehicles, boats, or machinery.

3. Assist fuel delivery

• Moves fuel from the tank to the engine consistently, preventing fuel starvation, especially at high loads or long fuel lines.

4. Support heavy-duty operations

• Essential for tractors, trucks, boats, and other equipment where manual steering or gravity-fed fuel systems are insufficient.

1. Hard or stiff steering

• Steering becomes difficult because the pump is not providing enough hydraulic pressure.

2. Whining or squealing noises

• High-pitched noises when turning the wheel often indicate worn internal pump components or low fluid.

3. Fluid leaks

• Power steering fluid leaking from the pump, hoses, or connections is a major warning sign.

4. Steering chatter or jerky movement

• Steering may feel uneven, jerky, or “pulsating” when turning.

5. Engine performance issues (fuel lift function)

• If the pump also handles fuel delivery, signs can include:

  • Engine sputtering

  • Difficulty starting

  • Reduced engine power due to inconsistent fuel supply

6. Foamy or low fluid

• Air entering the hydraulic system or low fluid levels can indicate internal pump failure or leaks.

7. Excessive heat

• A failing pump may overheat, causing hydraulic fluid to become hot and potentially damaging seals.