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OE Quality
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Cardone 21-5491 Power Steering Pump
Overview of Cardone Power Steering Pump 21-5491
The Cardone Power Steering Pump 21-5491 is a remanufactured hydraulic pump designed for select Mercedes-Benz models including C230, C280, C350, CLK350, SLK280, and SLK350. Engineered to restore proper steering assist, this pump is a reliable replacement for worn or failing power steering components.
- Remanufactured power steering pump for Mercedes-Benz vehicles
- Aluminum housing for durability and heat dissipation
- Quick connect inlet attachment and threaded outlet for secure hose connections
- Includes hydraulic pump, instruction sheet, and sealing kit
- Compatible with power steering systems requiring O-ring hose ports and press-on pulley attachment
Product Line Details: Cardone Power Steering Pump
The Cardone Power Steering Pump line focuses on remanufactured components that meet or exceed original equipment specifications. This product line emphasizes quality and fitment accuracy, providing a cost-effective solution for restoring power steering function. The 21-5491 pump is part of this line, offering a balance of performance and reliability for Mercedes-Benz power steering systems.
Technical Description and Features
This power steering pump features an aluminum housing that ensures strength while managing heat generated during operation. The inlet uses a quick connect attachment type, simplifying installation and reducing the risk of leaks. The outlet is threaded (16x1.5 thread size) and designed for a single outlet hose connection with an O-ring port type, ensuring a tight seal. The pump does not include a pulley or reservoir, and mounting hardware is not included, so these components must be reused or sourced separately. The pulley attachment is press-on style, compatible with original equipment pulleys.
Common Applications and Problem Resolution
- Restores power steering assist in Mercedes-Benz C230, C280, C350, CLK350, SLK280, and SLK350 models
- Eliminates whining noises caused by worn or failing pumps
- Resolves hard steering issues related to pump malfunction
- Addresses fluid flow problems due to debris in the flow control valve bore
- Corrects assist loss at low engine RPMs
Installation Notes and Tips
- Ensure the original pulley is compatible or sourced separately, as this pump does not include a pulley
- Use the included sealing kit to prevent leaks at hose connections
- Bleed the power steering system thoroughly to remove air and prevent whining noises
- Check steering gear condition if hard steering persists after pump replacement
- Follow the instruction sheet carefully for proper installation procedures
Quality Assurance and Warranty
This Cardone Power Steering Pump 21-5491 is remanufactured to meet strict quality 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 | 21-5491 |
| 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 8 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2007 | Mercedes-Benz | SLK280 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Mercedes-Benz | SLK350 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2006 | Mercedes-Benz | C230 | N/A | Before 01/31/2006; 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 | C280 | N/A | Before 01/31/2006; 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 | C350 | N/A | Before 01/31/2006; 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 | CLK350 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2006 | Mercedes-Benz | SLK280 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2006 | Mercedes-Benz | SLK350 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; 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.