Dorman 603-507 Engine Coolant Reservoir - Front

Reliable Engine Coolant Reservoir for Mazda Protege Models

The Dorman 603-507 engine coolant reservoir is designed specifically for Mazda Protege and Protege5 vehicles. Constructed from durable plastic, this reservoir ensures proper coolant storage and circulation to maintain optimal engine temperature.

• Material: Durable plastic construction for long-lasting use
• Dimensions: 125 mm length and 161 mm height for precise fitment
• Color: White reservoir for easy coolant level monitoring
• Includes mounting brackets and one mounting hole for secure installation
• Cap type: Flip top cap included for convenient access
• Non-pressurized design suitable for Mazda Protege cooling systems
• Package includes 1 coolant reservoir, 1 cap, and tubing

Product Details and Specifications

The Dorman 603-507 engine coolant reservoir is engineered to meet the specifications of Mazda Protege and Protege5 models. Its plastic construction resists corrosion and withstands engine bay conditions. The reservoir measures 125 mm in length and 161 mm in height, ensuring a proper fit within the engine compartment. The white color allows for quick visual checks of coolant levels without removing the cap. This reservoir comes with a flip top cap and necessary mounting brackets, although mounting hardware is not included. It features a single mounting hole for straightforward installation. The non-pressurized design aligns with the cooling system requirements of the specified Mazda vehicles.

Compatible Applications and Common Issues Addressed

• Replacement for cracked or leaking coolant reservoirs in Mazda Protege and Protege5
• Resolves coolant overflow or low coolant level warnings
• Prevents engine overheating caused by coolant loss
• Addresses reservoir cap failures with included flip top cap
• Fixes mounting bracket damage or wear for secure coolant system operation

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid injury from hot coolant. Remove the old reservoir carefully, disconnecting any tubing and mounting hardware. Install the Dorman 603-507 reservoir using the included mounting brackets and secure it with appropriate hardware (not included). Attach the tubing as per the original setup and verify the flip top cap is properly seated. After installation, refill the coolant system and check for leaks. It is recommended to bleed the cooling system to remove any trapped air for optimal performance.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-507 engine coolant reservoir undergoes quality checks to ensure durability and reliability in Mazda Protege and Protege5 vehicles. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.