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Cardone 21-5326 Power Steering Pump
Overview of Cardone Power Steering Pump 21-5326
The Cardone Power Steering Pump 21-5326 is a remanufactured hydraulic pump designed for select Mercedes-Benz models including the S55 AMG, S430, and S500. Engineered to restore proper steering assist, this pump features durable aluminum housing and a quick connect inlet for efficient installation.
- Remanufactured power steering pump for Mercedes-Benz S55 AMG, S430, S500
- Aluminum housing for strength and corrosion resistance
- Quick connect inlet attachment and threaded outlet (16x1.5 thread size)
- Press-on pulley attachment type (pulley not included)
- Includes hydraulic pump, instruction sheet, and sealing kit
- O-ring type hose port for secure connections
- Single power steering pump outlet with threaded attachment
Detailed Product Description
This Cardone Power Steering Pump 21-5326 is part of the Power Steering Pump brand line, which focuses on remanufactured components that meet or exceed OEM specifications. The pump’s aluminum housing provides durability while maintaining a lightweight design. It features a quick connect inlet attachment type for ease of installation and a threaded outlet with a 16x1.5 thread size to ensure a secure fit with compatible power steering hoses. The press-on pulley attachment requires the reuse or replacement of the original pulley, as it is not included with this unit. The package includes the hydraulic pump, a sealing kit, and an instruction sheet to assist with installation.
Compatible Vehicles and Applications
This power steering pump is compatible with the following Mercedes-Benz models:
- Mercedes-Benz S55 AMG
- Mercedes-Benz S430
- Mercedes-Benz S500
It is designed to restore proper hydraulic pressure and steering assist in these vehicles, addressing common power steering issues.
Common Issues Addressed by This Power Steering Pump
- Whining or noisy pump due to air in the system or worn components
- Hard steering or lack of assist at idle or low engine RPM
- Leaks or loss of hydraulic pressure from worn or damaged pumps
- Intermittent steering assist or inconsistent pump performance
- Debris or blockage in flow control valve affecting pump operation
Installation Notes and Tips
- Ensure the original pulley is inspected for damage; pulley is not included and must be reused or replaced separately
- Use the included sealing kit to prevent leaks at hose connections
- Bleed the power steering system thoroughly to remove air and prevent whining noises
- Verify compatibility with your vehicle’s power steering hose fittings (O-ring port type and threaded outlet)
- Follow the instruction sheet carefully for proper mounting and connection
Quality Assurance and Warranty
The Cardone Power Steering Pump 21-5326 is remanufactured to meet OEM standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Cardone products typically come with a limited warranty covering defects in materials and workmanship. It is recommended to verify warranty terms at the time of purchase.
| Brand | Cardone |
|---|---|
| Part Number | 21-5326 |
| Position | Power Steering Pump |
| E-Waste | No |
| Hose Port Type | O-Ring |
| Housing Material | Aluminum |
| Mounting Hardware Included | No |
| Package Contents | Hydraulic Pump; Instruction Sheet; Sealing Kit |
| Power Steering Outlet ID Size | 0 |
| Power Steering Outlet Thread Size | 16x1.5 |
| Power Steering Pump Inlet Attachement Type | Quick Connect |
| Power Steering Pump Outlet Attachment Type | THREADED |
| Power Steering Reservoir Cap Included | No |
| Product Condition | Remanufactured |
| Pulley Attachement Type | Press-On |
| Pulley Included | No |
| Remote Reservoir | No |
| Reservoir Included | No |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Mercedes-Benz | S430 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2006 | Mercedes-Benz | S500 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2005 | Mercedes-Benz | S430 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2005 | Mercedes-Benz | S500 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2004 | Mercedes-Benz | S430 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2004 | Mercedes-Benz | S500 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2003 | Mercedes-Benz | S430 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2003 | Mercedes-Benz | S500 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2002 | Mercedes-Benz | S430 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2002 | Mercedes-Benz | S500 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2002 | Mercedes-Benz | S55 AMG | N/A | without Self-Leveling Device and / or Anti-Lock Differential; Luk Pump; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2001 | Mercedes-Benz | S430 | N/A | without Active Body Control; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2001 | Mercedes-Benz | S500 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2001 | Mercedes-Benz | S55 AMG | N/A | without Self-Leveling Device and / or Anti-Lock Differential; Luk Pump; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2000 | Mercedes-Benz | S430 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
| 2000 | Mercedes-Benz | S500 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; Reservoir Not Included; In-Line Filter available; For warranty purposes it is recommended to always install a filter and to use suggested OE Fluid and flush the system; Power Steering Pump |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.