Keep your power steering fluid supply contained and ready for the pump with this Dorman power steering reservoir, part number 603-948, a complete replacement that comes with both the reservoir and its cap. It fits many vehicles, among them the 2003-2007 Honda Accord, 2008-2012 Acura RL and 2004-2008 Acura TL. See the "Vehicles it fits" section for the full list and engine details.
The reservoir holds the power steering fluid the system draws from. If a cracked or leaking reservoir or a damaged cap is behind a falling fluid level on your vehicle, this unit replaces both. Dorman builds it to handle underhood heat and engine vibration, and tests it for fit on specific vehicle applications.
- Direct replacement: Designed to fit and function like the original equipment for a straightforward installation.
- Complete assembly: Includes the reservoir and the reservoir cap.
- Built for the engine bay: Made to stand up to excessive heat and vibration.
- Quality tested: Put through on-vehicle testing to confirm a quality fit.
If you are replacing the power steering fluid reservoir on a 2003-2007 Honda Accord, this assembly ships ready to install with its own cap.
Interchange: ?APPST053 · 3R-202
APPST053 · 3R202 · RES0050 · 53701SDAA01 · HO4542100 · 9930003
This part cross-references / interchanges with the following part numbers:
?APPST053, 3R-202, RES0050, 53701SDAA01, HO4542100, 9930003
Frequently Asked Questions
Is this the right 2003-2007 Honda Accord power steering reservoir?
Yes. It is listed for the 2003-2007 Honda Accord, which covers the 2004 model year, and the "Vehicles it fits" section shows the full vehicle list.
Does this reservoir also fit Acura models?
Yes. It is listed for the 2008-2012 Acura RL and the 2004-2008 Acura TL, along with other vehicles shown in the "Vehicles it fits" section.
What comes in the box with Dorman 603-948?
You get a complete assembly: the power steering fluid reservoir and the reservoir cap.
What are signs my power steering reservoir may need replacing?
Signs include a cracked or leaking reservoir, a fluid level that keeps dropping, or a damaged cap. Diagnose the leak first, since hoses or other components can also be the cause.
How do I install the new reservoir?
It is designed as a direct replacement for the original. Follow your vehicle's service information for removal, refilling with the correct fluid, and bleeding the system.
