Dorman 603-277 Engine Coolant Reservoir - Right

Reliable Engine Coolant Reservoir for Ford Super Duty Trucks

The Dorman 603-277 engine coolant reservoir is designed specifically for Ford F-250 Super Duty and F-350 Super Duty models. Constructed from durable plastic with a black and clear finish, this reservoir ensures proper coolant storage and system pressure management for your heavy-duty truck.

• Material: Durable plastic construction
• Dimensions: 12.5 inches length, 8.5 inches height
• Color: Black and clear for easy coolant level monitoring
• Includes mounting brackets and a spring loaded twist cap
• Pressurized reservoir with a 5 psi maximum cap pressure rating
• Capacity: 1.75 liters
• Mounting hole quantity: 2 for secure installation
• Cap included with the package

Detailed Product Description

The Dorman 603-277 engine coolant reservoir is engineered to meet the cooling system requirements of Ford F-250 Super Duty and F-350 Super Duty trucks. Its irregular shape is designed to fit precisely within the engine bay, optimizing space without compromising capacity. The black and clear plastic body allows for quick visual inspection of coolant levels, helping prevent overheating issues. The included spring loaded twist cap maintains system pressure up to 5 psi, which is essential for proper coolant circulation and engine temperature regulation. Mounting brackets and two mounting holes ensure a secure fit, although mounting hardware is not included.

Common Applications and Problem Solving

• Replaces cracked or leaking coolant reservoirs
• Restores proper coolant pressure to prevent engine overheating
• Eliminates coolant loss due to damaged or faulty reservoirs
• Prevents air from entering the cooling system
• Ensures accurate coolant level monitoring with clear reservoir design

Installation Notes and Tips

Before installation, verify compatibility with your Ford F-250 Super Duty or F-350 Super Duty model year. The reservoir includes mounting brackets and two mounting holes but does not come with mounting hardware, so you may need to reuse existing bolts or purchase appropriate fasteners. Carefully remove the old reservoir and cap, drain any remaining coolant safely, and install the new reservoir ensuring a tight seal with the included spring loaded twist cap. Check for leaks and proper coolant levels after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit and function. The 603-277 engine coolant reservoir undergoes quality control testing to ensure durability and performance under normal operating conditions. Please refer to Dorman's warranty policy for specific coverage details.