Dorman 603-854 Power Steering Reservoir

Power Steering Reservoir for Select GM SUVs

This Dorman power steering reservoir is a direct replacement for select Buick, Chevrolet, GMC, and Saturn applications. Built from black plastic with a matte finish, it includes a reservoir cap and mounting bracket for a clean OE-style service replacement.

Key Features

• Replacement power steering fluid reservoir for remote-mounted systems
• Plastic construction helps withstand underhood heat and engine vibration
• Black matte finish for a factory-style appearance
• Includes reservoir cap and mounting bracket
• Single reservoir design for specific vehicle applications
• Part number 603-854 for easy identification

Detailed Description

Dorman 603-854 is a remote-mounted power steering reservoir engineered for specific GM crossover SUVs, including the Buick Enclave, Chevrolet Traverse, GMC Acadia, GMC Acadia Limited, and Saturn Outlook. It is manufactured from quality materials and tested for fit on the listed applications, making it a practical replacement when the original reservoir is cracked, leaking, or no longer sealing properly. This part cross-references Cardone New 3R-401 for the same application.

The reservoir is supplied in black plastic with a matte finish and includes the cap and mounting bracket. The design supports OE-style service on vehicles that use a remote-mounted power steering fluid reservoir, and the Dorman 603-854 part number helps simplify ordering and verification.

What It Helps Fix

• Power steering fluid leaks from a damaged reservoir
• Cracks caused by heat cycling and engine vibration
• Low fluid level concerns from a failing reservoir seal or housing
• Reservoir cap issues that can affect fluid containment
• Service replacement needs on remote-mounted steering systems

Installation Notes and Tips

Verify the vehicle’s reservoir style and mounting location before installation. This unit is for remote-mounted applications and does not include mounting hardware or fittings. Transfer any required vehicle-specific connections or hoses from the original setup as needed, and inspect the system for leaks after installation. Confirm fitment for 2011-2017 Buick Enclave, 2009-2017 Chevrolet Traverse, 2009-2017 GMC Acadia, 2017 GMC Acadia Limited, and 2009-2010 Saturn Outlook before ordering.

Quality Assurance

Dorman manufactures this reservoir from materials selected to handle underhood heat and vibration, then tests it for fit on specific vehicle applications. The part is built as a replacement component for service use on the listed GM models.