Dorman 603-078 Engine Coolant Reservoir - Front

Overview of Dorman Engine Coolant Reservoir 603-078

The Dorman Engine Coolant Reservoir 603-078 is designed for reliable coolant storage and overflow management in select Chevrolet and GMC vans. This white plastic reservoir includes a cap and mounting brackets, ensuring a secure fit for your vehicle's cooling system.

• Durable white plastic construction
• Includes one coolant reservoir and one cap
• Cap type included for proper sealing
• One mounting hole with included mounting brackets
• Non-pressurized design suitable for specific GM vans

Detailed Product Description

This engine coolant reservoir by Dorman is engineered to meet the cooling system requirements of Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500 models. Made from sturdy plastic, the reservoir is designed to withstand typical engine bay conditions without cracking or leaking. The included cap ensures a proper seal to prevent coolant loss, while the mounting brackets and single mounting hole facilitate straightforward installation. The reservoir is non-pressurized, matching the original equipment specifications for these vehicles.

Compatible Vehicles and Applications

This coolant reservoir is compatible with the following vehicles:

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

Use this part when replacing a damaged or leaking coolant reservoir in these models to maintain proper coolant levels and engine temperature regulation.

Common Issues Addressed by This Coolant Reservoir

• Coolant leaks due to cracked or damaged reservoir
• Overheating caused by insufficient coolant storage
• Coolant contamination from faulty caps
• Loose or broken mounting points leading to reservoir movement
• Replacement of worn or missing reservoir components

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Use the included mounting brackets and single mounting hole for secure attachment
• Check the cap seal for proper fit and replace if damaged
• Inspect surrounding hoses and connections for wear during installation
• Fill the reservoir with the recommended coolant type after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-078 engine coolant reservoir undergoes quality checks to ensure durability and compatibility with Chevrolet Express and GMC Savana models. Warranty coverage details can be obtained from the product documentation or manufacturer.