Dorman 603-120 Washer Fluid Reservoir - Front

Overview of Dorman 603-120 Washer Fluid Reservoir

The Dorman 603-120 washer fluid reservoir is designed specifically for select Chevrolet and GMC vans, providing a reliable replacement for your vehicle's windshield washer system. Made from durable plastic, this white reservoir includes a reservoir cap but does not come with mounting hardware or brackets.

• Constructed from durable plastic material for long-lasting use
• White color matches original equipment appearance
• Includes reservoir cap for secure fluid containment
• Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500 models
• Part number 603-120 ensures correct fitment and quality

Product Details and Specifications

This washer fluid reservoir is engineered to meet the specifications of Chevrolet Express and GMC Savana vans, including Express 1500, 2500, 3500, and G30 models. The plastic construction resists corrosion and damage from washer fluid chemicals. The included reservoir cap helps prevent leaks and contamination. Note that mounting hardware and brackets are not included, so reusing existing components or purchasing separately may be necessary. The white color maintains the factory look under the hood.

Compatible Vehicles and Applications

This washer fluid reservoir is compatible with the following vehicles:

• Chevrolet Express 1500, 2500, 3500
• GMC Savana 1500, 2500, 3500
• GMC G30

It is designed to replace worn or damaged reservoirs in these models, restoring proper windshield washer fluid storage and delivery.

Common Issues Addressed by This Reservoir

• Leaking or cracked washer fluid reservoir
• Inability to hold washer fluid properly
• Contamination or damage to the reservoir cap
• Reduced washer fluid delivery due to reservoir failure
• Replacement of faded or discolored reservoir for maintenance

Installation Notes and Tips

Installation of the Dorman 603-120 washer fluid reservoir requires removal of the old reservoir and securing the new one in place. Since mounting hardware and brackets are not included, inspect existing components for wear and replace if necessary. Ensure the reservoir cap is properly seated to prevent leaks. Use appropriate tools and follow vehicle-specific service manual instructions for safe and correct installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 603-120 washer fluid reservoir undergoes quality checks to ensure durability and compatibility with Chevrolet Express and GMC Savana models. Warranty coverage details can be obtained from the manufacturer or authorized distributors.