Dorman 603-667 Engine Coolant Reservoir - Front

Overview of Dorman Engine Coolant Reservoir for Volvo Vehicles

The Dorman 603-667 engine coolant reservoir is designed specifically for select Volvo models, including the S80, XC70, and XC90. This pressurized coolant reservoir ensures proper coolant storage and system pressure management to maintain engine temperature and performance.

• Constructed from durable plastic material
• Rectangular shape with dimensions: 8 inches length and 7.5 inches height
• White and green color for easy fluid level visibility
• Includes a pressurized coolant cap rated for 21.7 psi
• Equipped with a coolant level sensor for accurate monitoring
• Cap and level sensor included in the package
• Capacity of 1.5 liters to meet cooling system requirements

Detailed Product Description

The Dorman 603-667 engine coolant reservoir is engineered to meet the specifications of Volvo S80, XC70, and XC90 models. Made from high-quality plastic, this reservoir is designed to withstand the thermal and pressure demands of the engine cooling system. Its rectangular shape and white and green coloring allow for quick visual checks of coolant levels. The included pressurized cap maintains system pressure up to 21.7 psi, which helps prevent coolant boiling and ensures efficient heat transfer. Additionally, the integrated coolant level sensor provides reliable feedback to the vehicle’s monitoring system, helping to prevent overheating and coolant loss.

Common Applications and Problem Resolution

• Replacement for cracked or leaking coolant reservoirs
• Restores proper coolant pressure and prevents overheating
• Resolves inaccurate coolant level readings due to faulty sensors
• Prevents coolant contamination and system airlocks
• Maintains optimal engine temperature for Volvo S80, XC70, and XC90

Installation Notes and Tips

• Compatible with Volvo S80, XC70, and XC90 models; verify fitment before installation
• Installation requires removal of the old reservoir and connection of the level sensor and cap
• Mounting hardware and brackets are not included; reuse existing components if possible
• Ensure all hose connections are secure to prevent leaks
• After installation, check coolant levels and system pressure for proper operation

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-667 engine coolant reservoir undergoes rigorous quality control to ensure durability and reliability in demanding automotive environments. This product includes a limited warranty against defects in material and workmanship, providing confidence in its long-term performance for Volvo S80, XC70, and XC90 vehicles.