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Cardone 21-157 Power Steering Pump
Overview of Cardone Power Steering Pump 21-157
The Cardone Power Steering Pump 21-157 is a remanufactured hydraulic pump designed for select Mercedes-Benz models including the E350, E550, ML350, ML500, and R500. Engineered to restore proper steering assist, this pump is a reliable replacement option for vehicles experiencing steering difficulties.
- Remanufactured power steering pump for Mercedes-Benz E350, E550, ML350, ML500, R500
- Constructed with durable aluminum housing for long-lasting performance
- Features a press-on pulley attachment type (pulley not included)
- Includes hydraulic pump, instruction sheet, and sealing kit
- Quick connect inlet and threaded outlet attachment types with O-ring hose port
- Power steering outlet thread size 16x1.5, single outlet quantity
- Does not include mounting hardware, pulley, or reservoir components
Detailed Product Description
This Cardone Power Steering Pump 21-157 is specifically remanufactured to meet the requirements of Mercedes-Benz vehicles such as the E350, E550, ML350, ML500, and R500. The pump features an aluminum housing that provides strength and corrosion resistance. It uses a press-on pulley attachment, allowing for easy installation of your existing pulley. The inlet connection is a quick connect type, while the outlet is threaded with a 16x1.5 size, designed to fit the original power steering system configuration. The package includes the hydraulic pump, a sealing kit, and an instruction sheet to assist with installation. Note that mounting hardware, pulley, and reservoir are not included with this part.
About the Cardone Power Steering Pump Line
The Cardone Power Steering Pump product line focuses on remanufactured components that restore steering system functionality while maintaining OEM specifications. This line is engineered to provide a cost-effective alternative to new pumps without compromising on quality or fitment. The 21-157 pump is part of this line, offering a reliable solution for Mercedes-Benz power steering system repairs.
Common Applications and Issues Addressed
- Restores power assist in Mercedes-Benz E350, E550, ML350, ML500, and R500 models
- Eliminates whining or unusual noises from a failing power steering pump
- Resolves hard steering or inconsistent assist during engine RPM changes
- Addresses contamination-related pressure hose issues affecting steering performance
- Replaces pumps with damaged or cracked pulleys (pulley replacement required separately)
Installation Notes and Tips
- Ensure the existing pulley is in good condition before installation, as the pulley is not included
- Use the included sealing kit to prevent leaks at connection points
- Verify compatibility with your specific Mercedes-Benz model and engine configuration
- Follow the instruction sheet carefully for proper mounting and hose connections
- Check power steering fluid condition and replace fluid if recommended by the vehicle manufacturer
Quality Assurance and Warranty
This remanufactured power steering pump undergoes thorough testing to meet performance standards. While specific warranty details are not provided here, Cardone products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or Cardone directly for exact warranty terms related to part number 21-157.
| Brand | Cardone |
|---|---|
| Part Number | 21-157 |
| 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 7 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2007 | Mercedes-Benz | E350 | AWD | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Mercedes-Benz | E550 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2007 | Mercedes-Benz | ML500 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2007 | Mercedes-Benz | R500 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2006 | Mercedes-Benz | ML350 | N/A | Before 12/20/2005; 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 | ML500 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2006 | Mercedes-Benz | R500 | 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.