Dorman 603-338 Engine Coolant Reservoir - Front

Overview of Dorman Engine Coolant Reservoir 603-338

The Dorman 603-338 engine coolant reservoir is designed for reliable cooling system performance in Chevrolet Equinox and GMC Terrain models. This white plastic reservoir includes a spring loaded twist cap and mounting brackets for secure installation.

• Material: Durable plastic construction
• Dimensions: 9.5 inches length, 8 inches height
• Color: White for easy fluid level visibility
• Includes spring loaded twist cap rated for 15 psi pressure
• Mounting brackets included with 2 mounting holes
• Pressurized reservoir with 1-liter capacity
• Cap included, level sensor not included

Detailed Product Description

The Dorman 603-338 engine coolant reservoir is engineered to meet the cooling system requirements of Chevrolet Equinox and GMC Terrain vehicles. Constructed from durable plastic, this irregular-shaped reservoir measures 9.5 inches in length and 8 inches in height, providing a 1-liter capacity to maintain proper coolant levels. The included spring loaded twist cap is designed to withstand pressures up to 15 psi, ensuring the system remains sealed and pressurized during operation. Two mounting holes and included brackets facilitate secure attachment within the engine bay. The white color allows for easy monitoring of coolant levels, although this reservoir does not include a level sensor.

Compatible Vehicles and Applications

• Compatible with Chevrolet Equinox models requiring a 1-liter engine coolant reservoir
• Compatible with GMC Terrain models designed for this specific reservoir
• Replacement part number 603-338 for direct fit and function
• Used in cooling systems to maintain proper coolant volume and pressure

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old reservoir to avoid injury
• Verify the mounting bracket alignment and secure with the two mounting holes
• Replace the cap with the included spring loaded twist cap to maintain system pressure
• Check for leaks after installation and refill coolant to the recommended level
• Level sensor is not included; verify sensor functionality separately if applicable

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 603-338 engine coolant reservoir undergoes quality control testing to ensure durability and performance under normal operating conditions. Warranty coverage details should be confirmed with the product documentation or supplier.