Dorman 603-629 Engine Coolant Reservoir - Front

Overview of Dorman Engine Coolant Reservoir 603-629

The Dorman Engine Coolant Reservoir 603-629 is designed specifically for Nissan Frontier, Pathfinder, and Xterra models. This durable plastic reservoir ensures proper coolant storage and system pressurization to maintain engine temperature regulation.

• Constructed from durable white plastic for corrosion resistance
• Dimensions: 10 inches length and 9 inches height for precise fitment
• Includes mounting brackets and a spring loaded twist cap rated for 16 psi pressure
• Cap and two hoses included for complete installation
• Capacity of 2 liters to support efficient coolant circulation
• Three mounting holes for secure attachment

Detailed Product Description

This engine coolant reservoir by Dorman (part number 603-629) is engineered to meet the specifications of Nissan Frontier, Pathfinder, and Xterra vehicles. Made from high-quality plastic, it resists corrosion and withstands the thermal stresses of engine operation. The reservoir is pressurized and comes with a spring loaded twist cap rated at 16 psi, ensuring the cooling system maintains optimal pressure and prevents coolant loss. The included mounting brackets and three mounting holes provide a secure and stable installation. With a 2-liter capacity, this reservoir supports the cooling system’s efficiency by storing and supplying coolant as needed.

Common Applications and Issues Addressed

• Replacement for cracked or leaking coolant reservoirs
• Restores proper coolant pressure to prevent overheating
• Eliminates coolant loss due to faulty or missing caps
• Prevents engine damage caused by coolant system failure
• Ensures compatibility with Nissan Frontier, Pathfinder, and Xterra cooling systems

Installation Notes and Tips

• Verify compatibility with Nissan Frontier, Pathfinder, or Xterra before installation
• Use the included mounting brackets and three mounting holes for secure fitment
• Ensure the spring loaded twist cap is properly seated to maintain system pressure
• Replace hoses if damaged; two hoses are included with the reservoir
• Check coolant levels and refill as necessary after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-629 engine coolant reservoir undergoes rigorous quality control to ensure durability and reliability. This product includes the reservoir, cap, and hoses to provide a complete solution for your cooling system needs. Warranty details are provided by Dorman and typically cover defects in material and workmanship.