Power Steering Pump Seal Set — Keep Assist Pressure, Stop Leaks ?️?

This OEM-grade sealing pack restores the hydraulic tightness of the steering pump. Heat, ATF, and vibration harden old O-rings and the shaft lip seal, letting pressure escape. The result is lost assist, pump whine, and fluid on the driveway. Re-sealing is the smart, budget-friendly fix that protects the rack and hoses while bringing back smooth, light steering.

How it works ⚙️

Precision O-rings, body gaskets, the front shaft lip seal, and crush washers lock in pressure at the housing halves, high-pressure outlet, return port, and input shaft. Fuel/ATF-resistant elastomers (NBR/Viton) keep the vane pump primed, prevent aeration, and maintain stable assist from idle to parking speeds.

What happens if seals fail ❗

• Heavy steering, groan/whine, and foamy fluid
• Wet pump body and red spots under the car
• Overheating pump, belt squeal, metal debris risking the rack

Install notes ✅

• Clean grooves; inspect shaft play and pulley
• Lightly oil lips with ATF; seat seals squarely
• Torque fasteners correctly; flush and bleed system
• Warm check for leaks after a lock-to-lock test

Compatibility

• QX50
• EX