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CardonePart #: 21-5098
Cardone 21-5098 Power Steering Pump
49 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Power Steering Pump
Fitment: Porsche, 911, Boxster, and Cayman
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Cardone Power Steering Pump for Porsche
Cardone remanufactured power steering pump Part Number 21-5098 is built for Porsche applications that need OE-style fit and hydraulic performance. It is engineered for the Porsche 911, Boxster, and Cayman with a remote reservoir setup, and it is supplied with a hydraulic pump, instruction sheet, and sealing kit.
Key Features
- Remanufactured Original Equipment-style power steering pump for precise vehicle fit
- Triple-tested critical components, including cam packs and spool valves, for reliability
- Computer-tested final assembly for pressure, bypass, fluid flow, valve operation, steering effort, and noise
- 100% new O-rings and premium HNBR seals to help resist heat-related seal breakdown
- Surfaced shafts to precise specifications to reduce premature seal wear
- 100% tested and calibrated pressure relief valves
- Aluminum housing with O-ring hose port type and threaded outlet
- Remote reservoir design; reservoir not included
Product Details
This Cardone Power Steering Pump, Part Number 21-5098, is remanufactured to meet or exceed original equipment performance standards. The remanufacturing process includes inspection for design improvements where applicable, along with hydraulic efficiency testing to support consistent steering assist and long-term operation. This part cross-references Porsche 99631405002 for the same application.
Compatible with Porsche 911, Porsche Boxster, and Porsche Cayman applications, this pump is a direct-fit solution for vehicles that use a remote reservoir configuration. It is a strong match for drivers searching for a remanufactured Porsche 911 power steering pump, Porsche Boxster steering pump replacement, or Porsche Cayman power steering pump Part Number 21-5098.
Common Problems This Pump Can Address
- Whining or noisy power steering pump operation
- Loss of steering assist at idle or low engine speed
- Hard steering caused by pump wear or internal leakage
- Pressure loss from worn valves, seals, or shaft surfaces
- Fluid leakage at pump seals or connections
Installation Notes
- Fits 1999-2008 Porsche 911, N/A
- Fits 1997-2008 Porsche Boxster, N/A
- Fits 2006-2008 Porsche Cayman, N/A
- Reservoir not included
- OE fluid and system flush required for warranty
- In-line filter required for warranty
- Bleed the system thoroughly after installation to remove trapped air
- Inspect the pulley fit before installation; the pulley is press-on and not included
Quality Assurance
Cardone remanufactured power steering pumps are tested at multiple stages to verify component function and hydraulic performance. The process is designed to reduce raw material and energy use compared with manufacturing a new part, while maintaining OE-level fit and dependable operation for Porsche steering systems.
| Brand | Cardone |
|---|---|
| Part Number | 21-5098 |
| Position | Power Steering Pump |
| E-Waste | No |
| FAQs | A whining pump is usually caused by air in the system. remove res |
| 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 not in the pump, it is in the steering gear. the p |
| 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 | 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 | 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 | Press-on |
| Pulley Included | No |
| Remote Reservoir | Yes |
| Reservoir Included | No |
This part fits 49 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2008 | Porsche | 911 | Carrera 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2008 | Porsche | 911 | Carrera 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2008 | Porsche | 911 | Targa 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2008 | Porsche | 911 | Carrera | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2008 | Porsche | 911 | Carrera S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2008 | Porsche | 911 | Targa 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2008 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2008 | Porsche | Cayman | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2007 | Porsche | 911 | Carrera 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Porsche | 911 | Carrera 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Porsche | 911 | Targa 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Porsche | 911 | Carrera | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Porsche | 911 | Carrera S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Porsche | 911 | Targa 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2007 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2007 | Porsche | Cayman | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2006 | Porsche | 911 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2006 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2006 | Porsche | Cayman | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2005 | Porsche | 911 | Carrera 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2005 | Porsche | 911 | Carrera | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2005 | Porsche | 911 | Carrera S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2005 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2004 | Porsche | 911 | Carrera 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2004 | Porsche | 911 | Carrera 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2004 | Porsche | 911 | Carrera | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2004 | Porsche | 911 | 40th Anniversary Edition | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2004 | Porsche | 911 | Targa | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2004 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2003 | Porsche | 911 | Carrera 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2003 | Porsche | 911 | Carrera 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2003 | Porsche | 911 | Carrera | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2003 | Porsche | 911 | Targa | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2003 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2002 | Porsche | 911 | Carrera 4S | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2002 | Porsche | 911 | Carrera 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2002 | Porsche | 911 | Carrera | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2002 | Porsche | 911 | Targa | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2002 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2001 | Porsche | 911 | Carrera 4 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2001 | Porsche | 911 | Carrera | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2001 | Porsche | 911 | GT3 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump |
| 2001 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2000 | Porsche | 911 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 2000 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 1999 | Porsche | 911 | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 1999 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 1998 | Porsche | Boxster | N/A | Reservoir not included, in-line filter, OE fluid & system flush required for warranty.; Power Steering Pump | |
| 1997 | Porsche | Boxster | 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:
99631405002
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.