HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsCardone 21-515 Power Steering Pump
Part #: 21-515

Cardone 21-515 Power Steering Pump

Power Steering Pump
⚙️ 12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Power Steering Pump
🚗Fitment: Audi, A4, A4 Quattro, A5, and A5 Quattro
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Power Steering Pump for Audi A4 and A5 Models

The Cardone Power Steering Pump 21-515 is designed to restore smooth and responsive steering for Audi A4, A4 Quattro, A5, and A5 Quattro vehicles. This remanufactured pump offers a durable aluminum housing and includes a pulley and sealing kit to ensure proper fit and function.

  • Remanufactured power steering pump with aluminum housing
  • Compatible with Audi A4, A4 Quattro, A5, and A5 Quattro models
  • Includes hydraulic pump, instruction sheet, sealing kit, and pulley
  • Features hose barb inlet and bolt-on outlet attachment types
  • Equipped with O-ring hose port and press-on pulley attachment
  • Remote reservoir compatible; reservoir not included
  • Power steering outlet ID size: 0.554 inches

About the Cardone Power Steering Pump Line

The Cardone Power Steering Pump product line focuses on remanufactured components engineered to meet or exceed OEM specifications. Each pump undergoes a thorough rebuilding process, including replacement of worn parts and testing to ensure reliable performance. The 21-515 model is part of this line, providing a cost-effective solution for restoring power steering function in select Audi vehicles.

Product Details and Specifications

This power steering pump features an aluminum housing for strength and heat dissipation. The inlet uses a hose barb attachment, while the outlet is bolt-on style with a single outlet port sized at 0.554 inches. The included pulley attaches via a press-on method, designed to match factory specifications. Although the pump supports a remote reservoir setup, the reservoir itself is not included. The package contains the hydraulic pump, a sealing kit, and an instruction sheet to assist with installation.

Common Applications and Problem Resolution

  • Restores power assist in steering for Audi A4 and A5 models
  • Eliminates whining noises caused by worn or contaminated pumps
  • Resolves hard steering issues related to pump failure
  • Addresses fluid contamination problems affecting steering performance
  • Replaces cracked or damaged pulleys impacting pump operation

Installation Notes and Tips

When installing the Cardone 21-515 power steering pump, ensure the system is properly flushed to remove air and contaminants that can cause whining noises or assist loss. The press-on pulley should be carefully aligned to avoid shaft damage. Since mounting hardware is not included, reuse existing bolts or source OEM replacements. Verify hose connections match the hose barb inlet and bolt-on outlet attachment types for a secure fit.

Quality Assurance and Warranty

This remanufactured power steering pump undergoes rigorous testing to meet performance standards. Cardone provides a limited warranty covering defects in materials and workmanship, offering assurance of product reliability for Audi A4 and A5 owners seeking a dependable replacement part.

BrandCardone
Part Number21-515
PositionPower Steering Pump
E-WasteNo
FAQsA whining pump is usually caused by air in the system. remove res
FAQsI bought a replacement power steering pump and my original pulley
FAQsI only have assist when increasing engine rpm after installing th
FAQsMost likely cause is contamination. remove the pressure hose and
FAQsShould i ever change my fluid, even though nothing is wrong?
FAQsThe problem is not in the pump, it is in the steering gear. the p
FAQsThe pulley may have cracked upon removal. if the shaft was mushro
FAQsWhy do i still have hard steering in one direction after i replac
FAQsWhy is the pump making a whining noise all of the time?
FAQsYes. some o.e. manufacturers recommend that power steering fluid
Hose Port TypeO-ring
Housing MaterialAluminum
Mounting Hardware IncludedNo
Package ContentsHydraulic pump; instruction sheet; sealing kit
Power Steering Outlet ID Size0.554
Power Steering Pump Inlet Attachement TypeHose barb
Power Steering Pump Outlet Attachment TypeBolt-on
Power Steering Pump Outlet Quantity1
Power Steering Reservoir Cap IncludedNo
Product ConditionRemanufactured
Pulley Attachement TypePress-on
Pulley IncludedYes
Remote ReservoirYes
Reservoir IncludedNo

This part fits 12 vehicles. Search below:

YearMakeModelPositionNotes
2012AudiA4N/Awithout Dynamic Steering; 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
2012AudiA4 QuattroN/Awithout Dynamic Steering; 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
2012AudiA5N/Awithout Dynamic Steering; 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
2012AudiA5 QuattroN/Awithout Dynamic Steering; 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
2011AudiA4N/Awithout Dynamic Steering; 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
2011AudiA4 QuattroN/Awithout Dynamic Steering; 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
2011AudiA5N/Awithout Dynamic Steering; 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
2011AudiA5 QuattroN/Awithout Dynamic Steering; 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
2010AudiA4N/Awithout Dynamic Steering; 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
2010AudiA4 QuattroN/Awithout Dynamic Steering; 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
2010AudiA5N/Awithout Dynamic Steering; 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
2010AudiA5 QuattroN/Awithout Dynamic Steering; 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

* 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:

8K0145153F

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.