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OE Quality
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Cardone 21-5651 Power Steering Pump
Cardone 21-5651 Power Steering Pump
Cardone 21-5651 is a remanufactured power steering pump built to restore hydraulic steering performance with OE-style fitment. It is engineered for the 1987 Subaru Standard application and includes a remote reservoir setup, making it a direct replacement for the listed vehicle configuration.
Key Features
- Remanufactured Original Equipment-style power steering pump for precise vehicle fit
- Hydraulic efficiency tested for pressure, bypass, fluid flow, valve operation, steering effort, and noise
- Triple-tested critical components such as cam packs and spool valves
- 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
- Cast iron housing with threaded outlet and hose barb inlet
Detailed Description
This Cardone Power Steering Pump is remanufactured to meet or exceed original equipment performance standards. The remanufacturing process includes inspection and improvement of the original design where applicable, along with testing of critical internal components to help deliver consistent hydraulic output. For Subaru Standard owners searching for a remanufactured power steering pump, Cardone 21-5651 provides the correct OE-style replacement for the listed 1987 application. This part cross-references Subaru 31052GA050 and 31052GA051 for the same application.
Compatible With 1987 Subaru Standard, N/A. The fitment notes specify reservoir not included, in-line filter, and OE fluid plus system flush required for warranty service.
Common Problems This Pump Can Address
- Hard steering at low engine speed
- Whining or noisy power steering pump operation
- Low or inconsistent hydraulic assist
- Fluid leakage from worn seals or shaft wear
- Poor steering response caused by internal pump wear
Installation Notes and Tips
Before installation, inspect the steering system for contamination, binding components, and pulley condition. If the original pulley fit became loose during removal, replace the pulley rather than reusing it. Flush the system and use OE-specified power steering fluid, especially on Subaru Standard applications where the fitment notes call for an in-line filter and fluid service. If assist only appears when engine rpm increases, check for restriction, contamination in the flow control valve bore, or steering system binding before replacing additional parts.
Quality Assurance
Cardone remanufactures this pump with tested internal components, calibrated pressure relief valves, and hydraulic efficiency verification to support reliable operation. The process also reduces raw material and energy use compared with manufacturing a new part.
| Brand | Cardone |
|---|---|
| Part Number | 21-5651 |
| 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 | Should i ever change my fluid, even though nothing is wrong? |
| FAQs | The end of the original pump's input shaft enlarged causing the p |
| FAQs | The problem is most likely in the steering unit−the pump do |
| FAQs | There may be debris in the flow control valve bore not allowing t |
| 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 | Cast iron |
| 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 | Bolt-on |
| Pulley Included | No |
| Remote Reservoir | Yes |
| Reservoir Included | No |
This part fits 1 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1987 | Subaru | Standard | 1.8L | H4 | 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.