Dorman 603-5505 Engine Coolant Reservoir - Front

Reliable Engine Coolant Reservoir for Vehicle Cooling Systems

The Dorman 603-5505 engine coolant reservoir is designed to maintain optimal coolant levels and support your vehicle's cooling system. Constructed from durable plastic with a black and white finish, this reservoir includes essential components to ensure proper fit and function.

• Durable plastic construction for long-lasting performance
• Black and white color for easy coolant level visibility
• Includes spring loaded twist cap for secure sealing
• Pressurized design to maintain system integrity
• Equipped with a level sensor for accurate coolant monitoring
• Includes mounting brackets and four mounting holes for secure installation
• Cap and mounting hardware included for convenience

Product Details and Features

The Dorman 603-5505 engine coolant reservoir is engineered to meet the demands of modern cooling systems. Its pressurized design helps maintain proper coolant flow and pressure, reducing the risk of overheating. The spring loaded twist cap ensures a tight seal, preventing leaks and contamination. The included level sensor allows for real-time monitoring of coolant levels, which is critical for preventing engine damage due to low coolant. The reservoir’s black and white coloration provides clear visibility of coolant levels, aiding in routine maintenance checks. With four mounting holes and included brackets, installation is straightforward and secure.

Compatible Vehicles and Common Applications

This engine coolant reservoir is compatible with a range of vehicles requiring a pressurized coolant system with a spring loaded twist cap and level sensor. It is commonly used in various makes and models that specify a plastic coolant reservoir with these features. The Dorman 603-5505 is suitable for vehicles where a reliable replacement reservoir is needed to address issues such as:

• Coolant leaks or cracks in the original reservoir
• Faulty or missing coolant level sensors
• Damaged or worn reservoir caps causing pressure loss
• Overheating due to improper coolant containment
• Loose or broken mounting brackets affecting reservoir stability

Installation Notes and Tips

When installing the Dorman 603-5505 engine coolant reservoir, ensure the vehicle is cool to avoid injury from hot coolant. Use the included mounting brackets and four mounting holes to secure the reservoir firmly in place. Verify that the spring loaded twist cap is properly seated to maintain system pressure. Check the level sensor connection for proper operation after installation. It is recommended to inspect hoses and clamps during installation to ensure the entire cooling system is in good condition.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 603-5505 engine coolant reservoir undergoes rigorous quality control to ensure fit and function. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty information for exact terms.