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Dorman 603-674 Power Steering Reservoir
Overview of the Dorman Power Steering Reservoir 603-674
The Dorman 603-674 power steering reservoir is designed for reliable fluid storage in select Lexus and Toyota vehicles. This single reservoir unit is constructed from durable plastic with a matte black and white finish, ensuring compatibility and longevity in your vehicle's power steering system.
- Material: Durable plastic construction
- Color: Black and white with a matte finish
- Includes one power steering reservoir and one reservoir cap
- Single reservoir type for standard power steering systems
- No mounting hardware, bracket, or fittings included
Detailed Product Description
The Dorman 603-674 power steering reservoir is engineered to meet the specifications required for Lexus and Toyota models such as the 4Runner, FJ Cruiser, and GX470. Its plastic construction offers resistance to corrosion and wear, while the matte black and white finish provides a clean, functional appearance under the hood. This reservoir comes with a matching cap to maintain system integrity and prevent fluid contamination. Note that mounting hardware, brackets, and fittings are not included, so existing components should be reused or sourced separately during installation.
Compatible Vehicles and Applications
This power steering reservoir is compatible with the following vehicles:
- Lexus GX470
- Toyota 4Runner
- Toyota FJ Cruiser
It is designed specifically for power steering systems requiring a single reservoir type, making it suitable for maintenance or replacement in these models.
Common Issues Addressed by This Reservoir
- Leaking or cracked power steering reservoir
- Contaminated or degraded power steering fluid storage
- Loss of fluid pressure due to reservoir failure
- Overheating of power steering fluid from inadequate reservoir design
- Replacement of worn or damaged reservoir caps
Installation Notes and Tips
When installing the Dorman 603-674 power steering reservoir, ensure the following:
- Reuse existing mounting hardware and brackets as none are included
- Check for proper hose connections and fittings compatibility
- Fill the reservoir with the manufacturer-recommended power steering fluid
- Inspect the reservoir cap seal to prevent leaks
- Bleed the power steering system after installation to remove air pockets
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-674 power steering reservoir undergoes quality checks to ensure durability and performance. Please refer to Dorman's official warranty policy for specific coverage details.
| Brand | Dorman |
| Part Number | 603-674 |
| Color | Black and White |
| Fittings Included | No |
| Friction Material Thickness | Matte |
| Installation Hardware Included | No |
| Material | Plastic |
| Mounting Bracket Included | No |
| Mounting Hardware Included | No |
| Package Contents | 1 Power Steering Reservoir; 1 Cap |
| Remote Mounted | No |
| Reservoir Cap Included | Yes |
| Reservoir Type | Single |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Toyota | 4Runner | N/A | |
| 2009 | Lexus | GX470 | N/A | |
| 2009 | Toyota | 4Runner | N/A | |
| 2009 | Toyota | FJ Cruiser | N/A | |
| 2008 | Lexus | GX470 | N/A | |
| 2008 | Toyota | 4Runner | N/A | |
| 2008 | Toyota | FJ Cruiser | N/A | |
| 2007 | Lexus | GX470 | N/A | |
| 2007 | Toyota | 4Runner | N/A | |
| 2007 | Toyota | FJ Cruiser | N/A | |
| 2006 | Lexus | GX470 | N/A | |
| 2006 | Toyota | 4Runner | N/A | |
| 2005 | Lexus | GX470 | N/A | |
| 2005 | Toyota | 4Runner | N/A | |
| 2004 | Lexus | GX470 | N/A | |
| 2004 | Toyota | 4Runner | N/A | |
| 2003 | Lexus | GX470 | N/A | |
| 2003 | Toyota | 4Runner | N/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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.