HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsDorman 603-940 Power Steering Reservoir
Part #: 603-940

Dorman 603-940 Power Steering Reservoir

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⚙️ 18 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Hyundai, Azera and Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman Power Steering Reservoir 603-940

The Dorman 603-940 power steering reservoir is designed specifically for Hyundai Azera and Sonata models. Constructed from durable plastic, this separated reservoir includes a cap and is engineered to maintain optimal power steering fluid levels for reliable steering performance.

  • Material: Durable plastic construction
  • Color: White for easy fluid level inspection
  • Includes reservoir cap for secure sealing
  • Separated reservoir type for efficient fluid management
  • Compatible with Hyundai Azera and Sonata models
  • No mounting bracket, fittings, or installation hardware included

Detailed Product Description

This Dorman power steering reservoir (part number 603-940) is a direct replacement component designed to meet the specifications of Hyundai Azera and Sonata vehicles. The plastic construction offers resistance to corrosion and wear, ensuring long-term durability. The white color of the reservoir allows for quick visual checks of fluid levels, helping to maintain proper power steering system function. As a separated reservoir type, it supports efficient fluid circulation within the power steering system. Note that this product does not include a mounting bracket, fittings, or installation hardware, so existing components may be reused during installation.

Common Applications and Issues Addressed

  • Replacement for cracked or leaking power steering reservoirs
  • Restores proper fluid containment to prevent steering system damage
  • Helps resolve low power steering fluid warnings or leaks
  • Prevents air intrusion that can cause steering noise or stiffness
  • Maintains consistent fluid pressure for smooth steering operation

Installation Notes and Tips

When installing the Dorman 603-940 power steering reservoir on Hyundai Azera or Sonata models, ensure the existing mounting bracket and fittings are in good condition as they are not included. Carefully transfer the reservoir cap and verify all connections are secure to prevent leaks. It is recommended to flush the power steering fluid and inspect hoses during replacement to maintain system integrity.

Quality Assurance and Warranty

Dorman power steering reservoirs are manufactured to meet or exceed OEM standards for fit and function. While specific warranty details for part number 603-940 may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.

BrandDorman
Part Number603-940
ColorWhite
Fittings IncludedNo
Installation Hardware IncludedNo
MaterialPlastic
Mounting Bracket IncludedNo
Package ContentsPower Steering Reservoir; 1 Cap
Remote MountedNo
Reservoir Cap IncludedYes
Reservoir TypeSeparated

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011HyundaiAzera3.3LV6N/A
2011HyundaiAzera3.8LV6N/A
2010HyundaiAzera3.3LV6N/A
2010HyundaiAzera3.8LV6N/A
2010HyundaiSonata2.4LL4N/A
2010HyundaiSonata3.3LV6N/A
2009HyundaiAzera3.3LV6N/A
2009HyundaiAzera3.8LV6N/A
2009HyundaiSonata2.4LL4N/A
2009HyundaiSonata3.3LV6N/A
2008HyundaiAzera3.3LV6N/A
2008HyundaiAzera3.8LV6N/A
2008HyundaiSonata3.3LV6N/A
2007HyundaiAzera3.3LV6N/A
2007HyundaiAzera3.8LV6N/A
2007HyundaiSonata3.3LV6N/A
2006HyundaiAzera3.8LV6N/A
2006HyundaiSonata3.3LV6N/A

* 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:

3R-306571503K100

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