Dorman 603-070 Engine Coolant Reservoir - Front

Reliable Engine Coolant Reservoir for Ford Explorer and Mercury Mountaineer

The Dorman 603-070 engine coolant reservoir is designed to maintain optimal coolant levels and pressure in your Ford Explorer or Mercury Mountaineer. Constructed from durable plastic with a clear finish, this reservoir allows for easy fluid level monitoring and reliable performance under pressurized conditions.

• Material: Durable plastic construction for long-lasting use
• Dimensions: 220mm length and 231mm height for precise fitment
• Color: Clear for easy coolant level visibility
• Pressurized reservoir with a spring loaded twist cap included
• Cap maximum pressure rating of 16 psi ensures system integrity
• Includes 1 coolant reservoir and 1 cap in the package
• Mounting hole quantity: 3 for secure installation (mounting hardware not included)

Product Details and Specifications

The Dorman 603-070 engine coolant reservoir is engineered specifically for use in Ford Explorer and Mercury Mountaineer models. Its clear plastic body allows for quick visual inspection of coolant levels without removing the cap. The reservoir is pressurized, supporting a maximum cap pressure rating of 16 psi, which helps maintain proper coolant system pressure and prevents overheating. The spring loaded twist cap included with the reservoir ensures a secure seal and easy removal when needed. With three mounting holes, the reservoir can be securely attached to the vehicle, although mounting hardware is not included.

Common Applications and Problem Resolution

• Replacement for cracked or leaking coolant reservoirs
• Restores proper coolant pressure and prevents overheating
• Eliminates coolant loss due to damaged or faulty reservoirs
• Helps maintain engine temperature stability in Ford Explorer and Mercury Mountaineer vehicles
• Prevents air from entering the cooling system through a secure cap seal

Installation Notes and Tips

When installing the Dorman 603-070 coolant reservoir, ensure the vehicle is cool to avoid injury from hot coolant. Use the existing mounting points and verify the three mounting holes align properly. Since mounting hardware is not included, retain or replace bolts and brackets as needed. Confirm the spring loaded twist cap is properly seated to maintain system pressure. After installation, check for leaks and top off coolant to the recommended level.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 603-070 engine coolant reservoir undergoes rigorous quality control to ensure durability and performance. This part includes a cap and is designed to maintain the cooling system’s pressurization at up to 16 psi. Warranty coverage details can be obtained from the product documentation or manufacturer.