Product Description
The CARDONE 21-5990 Remanufactured Power Steering Pump is engineered to restore OE steering performance while surpassing factory durability standards. Each OE design is thoroughly reviewed for potential improvements, and enhancements are incorporated to strengthen long-term reliability.
Critical internal components—including campacs and spool valves—are triple-tested to ensure dependable operation under demanding driving conditions. Every pump is built using 100% new O-rings and premium-grade HNBR seals, which deliver superior heat resistance and prevent fluid leaks. Precision-machined shafts minimize premature seal wear, extending pump service life.
Before leaving the production line, each unit undergoes a complete hydraulic efficiency evaluation to verify pressure output, bypass performance, fluid flow, valve operation, steering effort, and noise compliance. As an OE-remanufactured component, it ensures direct-fit installation and trouble-free operation.
CARDONE’s environmentally friendly remanufacturing process reduces raw material consumption and energy usage by up to 80%, offering a sustainable alternative to new parts.
Key Features
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Triple-tested internal components—including campacs and spool valves—for consistent, reliable performance
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Constructed with 100% new O-rings and premium HNBR seals that resist high-temperature deterioration
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Precision-machined shafts reduce early seal wear and increase pump longevity
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100% tested and calibrated pressure relief valves
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Fully computer-tested for pressure, flow, bypass function, steering effort, and noise levels
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OE remanufactured for a perfect fit and easy installation
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Eco-conscious remanufacturing reduces energy consumption and raw material use
Technical Specifications
| Specification |
Detail |
| Filter Included |
No |
| Hose Port Type |
O-Ring |
| Housing Material |
Aluminum |
| Inlet Attachment Type |
Barb |
| Inlet Diameter |
0.56 IN (14.224 MM) |
| Inlet Quantity |
1 |
| Mounting Hardware Included |
No |
| Outlet Attachment Type |
Threaded |
| Outlet Quantity |
1 |
| Outlet Thread Size |
14x1.5 |
| Pulley Attachment Type |
Bolt-On |
| Pulley Belt Type |
Serpentine |
| Pulley Included |
No |
| Remote Reservoir |
No |
| Reservoir Included |
No |
| Reservoir Cap Included |
No |
| Shaft Type |
Splined |
| Type |
Hydraulic |
OE Cross References
Subaru:
34411AC080, 34411AC100, 34411FA080
Vehicle Compatibility
| Year Range |
Make |
Model |
Engine |
Notes |
| 1997 |
Subaru |
Impreza |
1.8L |
Reservoir Not Included; Use OE Fluid; Install Filter; Flush System; In-Line Filter Available |
| 1997–1998 |
Subaru |
Impreza |
2.2L |
Reservoir Not Included; Use OE Fluid; Install Filter; Flush System; In-Line Filter Available |
| 1998 |
Subaru |
Impreza |
2.5L |
Reservoir Not Included; Use OE Fluid; Install Filter; Flush System; In-Line Filter Available |
| 1997–1999 |
Subaru |
Legacy |
2.2L |
Reservoir Not Included; Use OE Fluid; Install Filter; Flush System; In-Line Filter Available |
| 1997–1999 |
Subaru |
Legacy |
2.5L |
Reservoir Not Included; Use OE Fluid; Install Filter; Flush System; In-Line Filter Available |
Installation & Warranty Notes
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Use OE-approved power steering fluid only—other fluids may cause noise, poor performance, or pump damage
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Perform a complete steering system flush prior to installation
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Install an in-line power steering filter to extend pump life and maintain warranty coverage
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Inspect all power steering hoses, clamps, and reservoir for contamination or deterioration
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Never reuse old or contaminated power steering fluid
