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Dorman 603-851 Power Steering Reservoir
Reliable Power Steering Reservoir for Chevrolet and GMC Vans
The Dorman 603-851 power steering reservoir is designed for remote mounting and built to meet the demands of Chevrolet Express and GMC Savana vans. Constructed from durable metal with a matte black finish, this reservoir ensures long-lasting performance and corrosion resistance.
- Durable metal construction with matte black finish
- Includes mounting bracket and reservoir cap with dipstick
- Remote mounted design for flexible installation
- Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500
- Part number 603-851 for precise fitment
Product Details and Features
This power steering reservoir by Dorman is engineered specifically for power steering systems requiring a remote mounted reservoir. The metal material provides strength and resistance to wear, while the matte black finish offers a professional appearance and helps prevent surface corrosion. The included mounting bracket simplifies installation by providing a secure attachment point. The reservoir cap comes with a dipstick, allowing for easy fluid level checks and maintenance. Note that fittings and mounting hardware are not included, so ensure compatibility with your existing system components.
Compatible Vehicles and Applications
This power steering reservoir is compatible with the following vehicles:
- Chevrolet Express 1500, 2500, 3500
- GMC Savana 1500, 2500, 3500
Designed to replace worn or damaged reservoirs in these models, part number 603-851 helps maintain proper power steering fluid levels and system performance.
Common Issues Addressed by This Reservoir
- Leaking or cracked power steering reservoir
- Low power steering fluid levels causing steering difficulty
- Contaminated or degraded reservoir affecting fluid quality
- Damaged or missing reservoir cap and dipstick
- Corrosion or wear on original reservoir housing
Installation Notes and Tips
When installing the Dorman 603-851 power steering reservoir, ensure the mounting bracket is securely fastened to prevent movement during vehicle operation. Since fittings and installation hardware are not included, reuse existing components or source compatible parts separately. Check the reservoir cap and dipstick for proper sealing to avoid fluid leaks. Always verify fluid levels after installation and bleed the power steering system if necessary to remove air pockets.
Quality Assurance and Warranty
Dorman power steering reservoirs are manufactured to meet or exceed OEM specifications, providing reliable performance for Chevrolet Express and GMC Savana vehicles. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | Dorman |
| Part Number | 603-851 |
| Material | Metal |
| Color | Black |
| Finish | Matte |
| Mounting Hardware Included | No |
| Mounting Bracket Included | Yes |
| Fittings Included | No |
| Cap Included | Yes |
| Remote Mounted | Yes |
| Installation Hardware Included | No |
| Package Contents | 1 power steering reservoir; 1 cap; 1 dipstick |
| Reservoir Cap Included | Yes |
| Reservoir Type | Power steering |
This part fits 108 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2023 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2023 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2023 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2023 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2022 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2022 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2022 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2022 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2021 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2021 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2021 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2021 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2020 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2020 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2020 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2020 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2019 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2019 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2019 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2019 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2018 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2018 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2018 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2018 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2017 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2017 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2017 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2017 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2016 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2016 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2016 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2016 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2015 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2015 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2015 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2015 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2014 | Chevrolet | Express 1500 | N/A | wo/Level Sight |
| 2014 | Chevrolet | Express 2500 | N/A | wo/Level Sight |
| 2014 | Chevrolet | Express 3500 | N/A | wo/Level Sight |
| 2014 | GMC | Savana 1500 | N/A | wo/Level Sight |
| 2014 | GMC | Savana 2500 | N/A | wo/Level Sight |
| 2014 | GMC | Savana 3500 | N/A | wo/Level Sight |
| 2013 | Chevrolet | Express 1500 | N/A | |
| 2013 | Chevrolet | Express 2500 | N/A | |
| 2013 | Chevrolet | Express 3500 | N/A | |
| 2013 | GMC | Savana 1500 | N/A | |
| 2013 | GMC | Savana 2500 | N/A | |
| 2013 | GMC | Savana 3500 | N/A | |
| 2012 | Chevrolet | Express 1500 | N/A | |
| 2012 | Chevrolet | Express 2500 | N/A | |
| 2012 | Chevrolet | Express 3500 | N/A | |
| 2012 | GMC | Savana 1500 | N/A | |
| 2012 | GMC | Savana 2500 | N/A | |
| 2012 | GMC | Savana 3500 | N/A | |
| 2011 | Chevrolet | Express 1500 | N/A | |
| 2011 | Chevrolet | Express 2500 | N/A | |
| 2011 | Chevrolet | Express 3500 | N/A | |
| 2011 | GMC | Savana 1500 | N/A | |
| 2011 | GMC | Savana 2500 | N/A | |
| 2011 | GMC | Savana 3500 | N/A | |
| 2010 | Chevrolet | Express 1500 | N/A | |
| 2010 | Chevrolet | Express 2500 | N/A | |
| 2010 | Chevrolet | Express 3500 | N/A | |
| 2010 | GMC | Savana 1500 | N/A | |
| 2010 | GMC | Savana 2500 | N/A | |
| 2010 | GMC | Savana 3500 | N/A | |
| 2009 | Chevrolet | Express 1500 | N/A | |
| 2009 | Chevrolet | Express 2500 | N/A | |
| 2009 | Chevrolet | Express 3500 | N/A | |
| 2009 | GMC | Savana 1500 | N/A | |
| 2009 | GMC | Savana 2500 | N/A | |
| 2009 | GMC | Savana 3500 | N/A | |
| 2008 | Chevrolet | Express 1500 | N/A | |
| 2008 | Chevrolet | Express 2500 | N/A | |
| 2008 | Chevrolet | Express 3500 | N/A | |
| 2008 | GMC | Savana 1500 | N/A | |
| 2008 | GMC | Savana 2500 | N/A | |
| 2008 | GMC | Savana 3500 | N/A | |
| 2007 | Chevrolet | Express 1500 | N/A | Remote Mounted Reservoir |
| 2007 | Chevrolet | Express 2500 | N/A | Remote Mounted Reservoir |
| 2007 | Chevrolet | Express 3500 | N/A | Remote Mounted Reservoir |
| 2007 | GMC | Savana 1500 | N/A | Remote Mounted Reservoir |
| 2007 | GMC | Savana 2500 | N/A | Remote Mounted Reservoir |
| 2007 | GMC | Savana 3500 | N/A | Remote Mounted Reservoir |
| 2006 | Chevrolet | Express 1500 | N/A | Remote Mounted Reservoir |
| 2006 | Chevrolet | Express 2500 | N/A | Remote Mounted Reservoir |
| 2006 | Chevrolet | Express 3500 | N/A | Remote Mounted Reservoir |
| 2006 | GMC | Savana 1500 | N/A | Remote Mounted Reservoir |
| 2006 | GMC | Savana 2500 | N/A | Remote Mounted Reservoir |
| 2006 | GMC | Savana 3500 | N/A | Remote Mounted Reservoir |
| 2005 | Chevrolet | Express 1500 | N/A | Remote Mounted Reservoir |
| 2005 | Chevrolet | Express 2500 | N/A | Remote Mounted Reservoir |
| 2005 | Chevrolet | Express 3500 | N/A | Remote Mounted Reservoir |
| 2005 | GMC | Savana 1500 | N/A | Remote Mounted Reservoir |
| 2005 | GMC | Savana 2500 | N/A | Remote Mounted Reservoir |
| 2005 | GMC | Savana 3500 | N/A | Remote Mounted Reservoir |
| 2004 | Chevrolet | Express 1500 | N/A | Remote Mounted Reservoir |
| 2004 | Chevrolet | Express 2500 | N/A | Remote Mounted Reservoir |
| 2004 | Chevrolet | Express 3500 | N/A | Remote Mounted Reservoir |
| 2004 | GMC | Savana 1500 | N/A | Remote Mounted Reservoir |
| 2004 | GMC | Savana 2500 | N/A | Remote Mounted Reservoir |
| 2004 | GMC | Savana 3500 | N/A | Remote Mounted Reservoir |
| 2003 | Chevrolet | Express 1500 | N/A | Remote Mounted Reservoir |
| 2003 | Chevrolet | Express 2500 | N/A | Remote Mounted Reservoir |
| 2003 | Chevrolet | Express 3500 | N/A | Remote Mounted Reservoir |
| 2003 | GMC | Savana 1500 | N/A | Remote Mounted Reservoir |
| 2003 | GMC | Savana 2500 | N/A | Remote Mounted Reservoir |
| 2003 | GMC | Savana 3500 | N/A | Remote Mounted Reservoir |
* 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.