Cardone 21-503 Power Steering Pump

Cardone 21-503 Power Steering Pump

Cardone 21-503 is a remanufactured power steering pump built for OE-style fit and hydraulic performance. It is engineered for 2010-2011 Kia Soul applications with a remote reservoir setup, and it includes a pulley, instruction sheet, and sealing kit.

For Kia Soul power steering pump replacement, this unit is built to restore consistent assist, fluid control, and steering feel while matching the original mounting and connection style.

Key Features

• Remanufactured Original Equipment design for direct vehicle fit
• Triple-tested critical components, including cam packs and spool valves
• Computer-tested final assembly for pressure, bypass, flow, valve operation, steering effort, and noise
• 100% new O-rings and premium HNBR seals to help resist heat-related seal breakdown
• Precision-surfaced shafts to reduce premature seal wear
• 100% tested and calibrated pressure relief valves
• Aluminum housing with O-ring hose port type
• Press-on pulley attachment with pulley included

Product Details

This Cardone Power Steering Pump, part number 21-503, is a remanufactured hydraulic pump for steering systems that use a remote reservoir. It features a threaded outlet, hose-barb inlet attachment, and a 16x1.5 outlet thread size. The remanufacturing process is designed to reduce raw material and energy use compared with producing a new part, while maintaining OE-level function for the 2010-2011 Kia Soul. This part cross-references Kia 571002K500 for the same application.

What It Helps Address

• Hard steering or reduced assist at low engine speed
• Whining or noisy power steering pump operation
• Fluid leakage from worn seals or O-rings
• Inconsistent steering effort caused by internal pump wear
• Poor hydraulic flow or pressure control in the steering system

Installation Notes and Tips

Compatible With 2010-2011 Kia Soul, N/A. Reservoir not included, in-line filter, OE fluid and system flush required for warranty. Before installation, inspect the pulley fit, flush the system to remove contamination, and verify the steering gear and flow control valve are functioning correctly. If the original pulley has enlarged during removal, replace the pulley rather than reusing it. After installation, confirm proper fluid level and bleed the system according to the vehicle service procedure.

Quality Assurance

Cardone remanufactures this pump to meet or exceed original equipment performance targets. Each unit is tested for hydraulic efficiency and final operating characteristics to help ensure reliable, long-lasting service. The remanufacturing process also reduces energy and raw material use by up to 80% compared with manufacturing a new part.