25172394
Power Steering Pump
Mack

The power steering pump delivers a steady, high-volume flow of hydraulic fluid to the steering gear, reducing effort required by the driver and delivering confident, responsive handling in demanding road conditions. It is engineered to withstand the temperature swings and contamination typical of heavy-duty operation, with a robust casing, precise internal clearances, and a relief valve to protect the system from over-pressurization. This unit provides consistent pressure across a broad operating range, ensuring smooth, predictable steering assist whether maneuvering at low speeds in city traffic or navigating steep grades. Properly matched to the vehicle’s steering gear and reservoir, it minimizes steering lag and chatter that can compromise control. Durable seals and bearings help extend service life, while modern vane or gear mechanisms keep noise and pulsations to a minimum. When replacement is needed, installing a correctly rated pump can restore steering feel and reliability. Source One Parts Center.