Dorman 603-576 Engine Coolant Reservoir

Reliable Engine Coolant Reservoir for Nissan Frontier and Xterra

The Dorman 603-576 engine coolant reservoir is designed to maintain optimal coolant levels in your Nissan Frontier or Xterra. Constructed from durable plastic, this reservoir supports pressurized cooling systems to help prevent overheating and maintain engine performance.

• Compatible with Nissan Frontier and Nissan Xterra models
• Durable white plastic construction
• Pressurized coolant cap included with a maximum pressure rating of 15 psi
• Capacity of 1.7 liters for effective coolant storage
• Four mounting holes for secure installation
• Includes 1 coolant reservoir, 1 cap, and 2 hoses

Product Details and Specifications

The Dorman 603-576 engine coolant reservoir is made from high-quality plastic material, ensuring resistance to heat and corrosion. Its irregular shape is designed to fit precisely within the engine bay of Nissan Frontier and Xterra vehicles. The reservoir measures 203 mm in length and 158 mm in height, providing a compact yet sufficient capacity of 1.7 liters. The included pressurized coolant cap supports system pressure up to 15 psi, which helps maintain proper coolant flow and prevents leaks. This part does not include mounting brackets or hardware, but it features four mounting holes for straightforward attachment.

Common Applications and Problem Resolution

• Replaces cracked or leaking engine coolant reservoirs
• Restores proper coolant level monitoring and containment
• Prevents engine overheating caused by coolant loss
• Addresses coolant reservoir damage from wear or impact
• Ensures compatibility with pressurized cooling systems in Nissan Frontier and Xterra

Installation Notes and Tips

When installing the Dorman 603-576 coolant reservoir, ensure the engine is cool to avoid injury from hot coolant. Carefully remove the old reservoir and inspect mounting points for damage. Align the new reservoir using the four mounting holes and secure it properly. Connect the included hoses and verify the pressurized cap is tightly sealed. Check for leaks after installation and refill the coolant to the recommended level.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-576 engine coolant reservoir undergoes rigorous quality control to ensure durability and reliability. This product includes a warranty that covers defects in material and workmanship, providing confidence in its long-term performance for Nissan Frontier and Xterra vehicles.