Cardone 3R-402 Power Steering Reservoir

Power Steering Reservoir for GM SUVs

Restore proper power steering fluid storage and flow with this Cardone Power Steering Reservoir, part number 3R-402. It is built to OE design standards for a direct replacement on select Buick, GMC, and Saturn applications, including the 2008 Buick Enclave, 2007-2008 GMC Acadia, and 2007-2008 Saturn Outlook.

Cardone’s Power Steering Reservoir line focuses on replacing the reservoir itself when the pump is not the root cause of noise, pressure loss, or fluid contamination. This 3R-402 reservoir includes the cap and bracket, uses OE-grade plastic construction, and is remote mounted for the listed vehicles.

Key Features

• Fits 2008 Buick Enclave, N/A
• Fits 2007-2008 GMC Acadia, N/A
• Fits 2007-2008 Saturn Outlook, N/A
• OE-style replacement reservoir with cap included
• Remote-mounted design with bracket included
• Plastic construction for OE fit, function, and performance
• 100% tested for leak-free performance
• Resistant to cracking from engine-compartment heat

Detailed Description

The Cardone 3R-402 power steering reservoir is a direct-fit replacement for vehicles that use a remote-mounted reservoir in the steering system. It is designed to match OE dimensions and operating characteristics, making it a practical choice when the original reservoir is cracked, leaking, or internally restricted. For Buick Enclave, GMC Acadia, and Saturn Outlook models, this reservoir helps maintain proper fluid supply to the pump and supports stable steering system operation.

This part is part of Cardone’s Power Steering Reservoir product line, which is focused on stand-alone reservoir replacement as well as service alongside a pump replacement. The reservoir is manufactured from OE-grade material, includes the reservoir cap, and is 100% tested to verify fit and function before release. This part cross-references Buick/GMC/Saturn OE number 25879877 for the same application.

What It Helps Address

• Cracked reservoir housing from heat and vibration
• Fluid leaks at the reservoir body or hose connections
• Foaming fluid caused by air in the steering system
• Restricted fluid flow from a clogged remote reservoir
• Noise or pressure concerns traced to the reservoir rather than the pump

Installation Notes and Tips

Verify the reservoir location before service, as remote reservoirs may be mounted on the firewall, inner fender, or near the pump depending on the vehicle. Inspect the return and outlet hoses for cracking, debris, or internal breakdown before installing the new reservoir. If the fluid is foaming, bleed air from the system after installation to remove trapped air pockets and reduce cavitation risk.

For best results, follow the vehicle-specific OE service manual for hose replacement, fluid service, and bleeding procedures. Confirm fitment for 2008 Buick Enclave, 2007-2008 GMC Acadia, and 2007-2008 Saturn Outlook before installation.

Quality Assurance

Cardone manufactures this reservoir to OE design standards and tests each unit for proper fit and function. The use of OE-grade material and heat-resistant construction supports durability in demanding engine-compartment conditions.