Dorman 603-503 Engine Coolant Reservoir - Front

Reliable Engine Coolant Reservoir for Acura and Honda Vehicles

The Dorman 603-503 engine coolant reservoir is designed to maintain proper coolant levels and support your vehicle's cooling system. Compatible with select Acura and Honda models, this reservoir ensures efficient coolant storage and circulation.

• Constructed from durable white plastic for long-lasting performance
• Dimensions: 132.2 mm length and 227.5 mm height for precise fitment
• Includes one mounting bracket and one mounting hole for secure installation
• Comes with a cap and features a non-pressurized design
• Package contains one coolant reservoir and one cap

Product Details and Specifications

This engine coolant reservoir by Dorman is made from sturdy plastic material, providing resistance to heat and corrosion commonly found in engine compartments. The white color allows for easy coolant level inspection. Measuring 132.2 mm in length and 227.5 mm in height, it is engineered to fit specific Acura and Honda models, including the CR-V and Integra. The reservoir includes one mounting hole and comes with mounting brackets to facilitate a secure and stable installation. The included cap is designed to seal the reservoir effectively, although the reservoir itself is non-pressurized, which is typical for this type of component.

Compatible Vehicles and Common Applications

This Dorman 603-503 engine coolant reservoir is compatible with the following vehicles:

• Acura CR-V
• Honda CR-V
• Acura Integra
• Honda Integra

It is intended to replace worn or damaged coolant reservoirs that may cause issues such as coolant leaks, overheating, or inaccurate coolant level readings.

Common Issues Addressed by This Coolant Reservoir

• Coolant leaks due to cracked or damaged reservoir tanks
• Overheating caused by insufficient coolant storage
• Inaccurate coolant level readings from discolored or warped reservoirs
• Loose or missing mounting brackets leading to reservoir movement
• Faulty or missing reservoir caps causing coolant evaporation

Installation Notes and Tips

Installation of the Dorman 603-503 engine coolant reservoir requires basic mechanical skills. Ensure the engine is cool before beginning the replacement process. Use the included mounting brackets and single mounting hole to secure the reservoir firmly in place. Verify that the cap is properly seated to prevent coolant loss. Since mounting hardware is not included beyond the brackets, retain original fasteners or acquire appropriate replacements if necessary.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 603-503 engine coolant reservoir undergoes quality inspections to maintain consistent fit and function. Please refer to Dorman's warranty policy for specific coverage details.