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Cardone 21-5006 Power Steering Pump
Reliable Power Steering Pump Replacement for Mercedes-Benz 300SE and S320
The Cardone Power Steering Pump 21-5006 is a remanufactured hydraulic pump designed to restore smooth and responsive steering in your Mercedes-Benz 300SE or S320. Engineered with durable aluminum housing and a bolt-on pulley attachment, this pump ensures compatibility and performance for your vehicle's power steering system.
- Remanufactured power steering pump with aluminum housing for durability
- Compatible with Mercedes-Benz 300SE and S320 models
- Includes hydraulic pump and instruction sheet for installation guidance
- Features hose barb inlet and threaded outlet (16x1.5 thread size)
- Reservoir included; pulley not included (bolt-on pulley attachment)
- Power steering outlet uses seat port type with one outlet
About the Cardone Power Steering Pump Product Line
The Cardone Power Steering Pump line focuses on remanufactured components that meet or exceed OEM specifications. This product line emphasizes quality materials such as aluminum housings and precise attachment types to ensure proper fit and function. The 21-5006 pump is part of this line, offering a reliable replacement option for specific Mercedes-Benz models requiring a hydraulic pump with a hose barb inlet and threaded outlet.
Detailed Product Description
This Cardone power steering pump (part number 21-5006) is designed specifically for Mercedes-Benz 300SE and S320 vehicles. The pump features an aluminum housing that provides strength and corrosion resistance. It includes a hydraulic pump and an instruction sheet to assist with installation. The inlet attachment uses a hose barb design, while the outlet is threaded with a 16x1.5 size, ensuring secure connections within the power steering system. The pump comes with a reservoir but does not include a pulley, which attaches via a bolt-on method. The outlet port type is a seat design, and there is one outlet on the pump.
Common Issues Addressed by This Power Steering Pump
- Loss of power assist or hard steering in Mercedes-Benz 300SE and S320
- Whining or unusual noises from the power steering pump
- Contamination or failure causing inconsistent steering response
- Leaks or pressure loss in the power steering system
- Replacement of a worn or damaged original pump to restore steering performance
Installation Notes and Tips
When installing the Cardone 21-5006 power steering pump, ensure the pulley is properly transferred from the original pump, as this unit does not include a pulley. Verify that the hose barb inlet and threaded outlet connections are secure and free of contamination. It is recommended to inspect and, if necessary, replace power steering fluid during installation to maintain system health. Follow the included instruction sheet carefully for torque specifications and mounting procedures.
Quality Assurance and Warranty
This remanufactured power steering pump undergoes rigorous testing to meet performance standards. Cardone provides a warranty on this part, ensuring reliability and peace of mind for your Mercedes-Benz 300SE or S320. Using a remanufactured pump like the 21-5006 supports quality restoration of your vehicle’s steering system without compromising on durability.
| Brand | Cardone |
| Part Number | 21-5006 |
| Position | Power Steering Pump |
| E-Waste | No |
| FAQs | I bought a replacement power steering pump and my original pulley |
| FAQs | I only have assist when increasing engine rpm after installing th |
| FAQs | Most likely cause is contamination. remove the pressure hose and |
| FAQs | Should i ever change my fluid, even though nothing is wrong? |
| FAQs | The problem is most likely in the steering unit−the pump do |
| FAQs | The pulley may have cracked upon removal. if the shaft was mushro |
| FAQs | Why do i still have hard steering in one direction after i replac |
| FAQs | Why is the pump making a whining noise all of the time? |
| FAQs | Yes. some o.e. manufacturers recommend that power steering fluid |
| Hose Port Type | Seat |
| Housing Material | Aluminum |
| Mounting Hardware Included | No |
| Package Contents | Hydraulic pump; instruction sheet |
| Power Steering Outlet ID Size | 0 |
| Power Steering Outlet Thread Size | 16x1.5 |
| Power Steering Pump Inlet Attachement Type | Hose barb |
| Power Steering Pump Outlet Attachment Type | Threaded |
| Power Steering Pump Outlet Quantity | 1 |
| Power Steering Reservoir Cap Included | No |
| Product Condition | Remanufactured |
| Pulley Attachement Type | Bolt-on |
| Pulley Included | No |
| Remote Reservoir | No |
| Reservoir Included | Yes |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Mercedes-Benz | S320 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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 |
| 1998 | Mercedes-Benz | S320 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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 |
| 1997 | Mercedes-Benz | S320 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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 |
| 1996 | Mercedes-Benz | S320 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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 |
| 1995 | Mercedes-Benz | S320 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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 |
| 1994 | Mercedes-Benz | S320 | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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 |
| 1993 | Mercedes-Benz | 300SE | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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 |
| 1992 | Mercedes-Benz | 300SE | N/A | without Self-Leveling Device and / or Anti-Lock Differential; with ZF Pump; Reservoir 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.