Dorman 603-592 Washer Fluid Reservoir - Front

Washer Fluid Reservoir for Jeep Commander and Grand Cherokee

Dorman 603-592 is a replacement washer fluid reservoir built for underhood heat and engine vibration. It is tested for fit and performance on specific vehicle applications, making it a direct-service option for Jeep Commander and Jeep Grand Cherokee front applications.

Key Features

• Plastic reservoir construction with a black finish
• Mounting bracket included for application-specific installation
• Reservoir cap included
• Includes coolant reservoir, sensors, coolant cap, and tubing in the package contents
• OE-style replacement for front-mounted applications
• Part number 603-592 for easy identification

Detailed Description

This Dorman washer fluid reservoir is engineered as a replacement component for 2007-2010 Jeep Commander, front, and 2007-2010 Jeep Grand Cherokee, front. The plastic housing is built to handle heat cycling and vibration in the engine bay, while the included bracket supports proper mounting on the intended vehicle platforms. Dorman 603-592 is a practical choice when the original reservoir is cracked, leaking, or no longer holding fluid as intended. This part cross-references Mopar 55157474AA for the same application.

Common Problems It Can Help Solve

• Washer fluid leaks from a cracked or damaged reservoir
• Low washer fluid storage caused by reservoir failure
• Poor windshield washer system operation due to reservoir damage
• Fitment issues from a worn or incorrect replacement tank
• Underhood vibration-related reservoir wear

Installation Notes and Tips

Verify front-position fitment before installation on your Jeep Commander or Jeep Grand Cherokee. Transfer or connect the washer system components according to the vehicle’s original routing, and confirm the reservoir cap seats correctly after installation. Check all hose connections and sensor interfaces for secure engagement before refilling the system.

Quality Assurance

Dorman tests this reservoir for fit and performance on specific vehicle applications to support reliable service in the intended platform. The part is manufactured to withstand underhood heat and vibration encountered in normal operation.