NISSAN 49591-50L28 Power Steering Pump Seal Kit

This genuine Nissan power steering pump seal kit (part number: 49591-50L28) is designed for a complete overhaul and reliable resealing of the hydraulic power steering pump. Genuine quality components ensure a perfect fit and long service life, preventing hydraulic fluid leaks.

Function and Importance of the Power Steering Pump Seal Kit

The power steering pump is responsible for circulating power steering fluid under high pressure to the steering gear, ensuring effortless and consistent steering assistance. Internal pump components are constantly exposed to high temperatures and pressure, causing rubber and elastomeric seals to age, harden, or crack over time. Replacing the seal kit restores optimal internal pump pressure and helps prevent premature failure of more costly major assemblies.

Typical Symptoms of Worn Seals

• Leakage: Fluid spots or staining appearing on the power steering pump housing or beneath the vehicle.
• Noisy Operation: Whining, squealing, or groaning noises during steering, caused by air entering the system or low fluid level.
• Heavy Steering: The steering wheel becomes harder to turn, or power assist becomes erratic.
• Foaming Fluid: Power steering fluid foaming in the reservoir, indicating aeration due to seal failure.

Technical Features and Material Quality

• Genuine OEM Quality: Direct factory replacement that meets Nissan's rigorous manufacturing and material quality standards.
• Excellent Material Resistance: Sealing elements manufactured from specialized high-temperature and oil-resistant elastomers (NBR or Viton/FKM) designed to withstand the chemical effects of hydraulic fluid.
• Complete Kit: Includes the critical O-rings, oil seals, and other gaskets required for a pump rebuild to achieve complete sealing integrity.