Dorman 603-360 Engine Coolant Reservoir - Front

Reliable Engine Coolant Reservoir for Nissan and Infiniti Vehicles

The Dorman 603-360 engine coolant reservoir is designed to maintain optimal coolant levels in your vehicle's cooling system. Compatible with Nissan Armada, Pathfinder Armada, and Infiniti QX56 models, this reservoir ensures efficient engine temperature regulation.

• Constructed from durable plastic material for long-lasting performance
• Measures 10.5 inches in length and 7.5 inches in height
• Features a black and clear color design for easy coolant level monitoring
• Includes mounting brackets and one mounting hole for secure installation
• Equipped with a pressurized cap rated up to 20.3 psi to maintain system pressure
• 2-liter coolant capacity suitable for specified vehicle models
• Cap included with the reservoir for a complete replacement part

Product Details and Specifications

The Dorman 603-360 engine coolant reservoir is molded in an irregular shape to fit precisely within the engine bay of Nissan Armada, Pathfinder Armada, and Infiniti QX56 vehicles. Its plastic construction balances durability with resistance to corrosion and heat. The reservoir’s black and clear coloration allows for quick visual checks of coolant levels without removal. This part comes with mounting brackets and a single mounting hole to ensure a secure fit. The included pressurized cap, rated at 20.3 psi, helps maintain proper system pressure, preventing coolant loss and overheating. With a 2-liter capacity, this reservoir meets the cooling system requirements of the specified models.

Compatible Vehicles and Common Applications

• Replacement for damaged or leaking coolant reservoirs in Nissan Armada and Pathfinder Armada
• Suitable for Infiniti QX56 models requiring a pressurized coolant reservoir
• Addresses coolant overflow and engine overheating issues
• Restores proper coolant level monitoring and containment
• Prevents coolant system pressure loss and related engine performance problems

Installation Notes and Tips

Installation of the Dorman 603-360 engine coolant reservoir requires basic mechanical skills. Ensure the engine is cool before removal to avoid burns from hot coolant. Remove the old reservoir and cap, then secure the new reservoir using the included mounting brackets and single mounting hole. Confirm the pressurized cap is properly seated to maintain system pressure. After installation, refill the reservoir with the appropriate coolant and check for leaks. It is recommended to bleed the cooling system to remove air pockets for optimal performance.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-360 engine coolant reservoir undergoes quality inspections to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to the product documentation for exact warranty terms.