Dorman 603-046 Engine Coolant Reservoir - Front

Reliable Engine Coolant Reservoir for Ford F-250 and F-350

The Dorman 603-046 engine coolant reservoir is designed specifically for Ford F-250, F-250 HD, and F-350 models. This durable plastic reservoir ensures proper coolant storage and pressure management to maintain optimal engine temperature and performance.

• Constructed from durable white plastic for corrosion resistance
• Dimensions: 9.5 inches length and 8 inches height for precise fitment
• Includes spring loaded twist cap with a 15 psi maximum pressure rating
• Equipped with two mounting holes and included mounting brackets for secure installation
• Pressurized design with integrated level sensor and included cap
• 1-liter coolant capacity suitable for specified Ford trucks

Product Details and Specifications

The Dorman 603-046 engine coolant reservoir is engineered to meet the cooling system requirements of Ford F-250, F-250 HD, and F-350 trucks. Made from high-quality plastic, this reservoir features an irregular shape tailored to fit the engine bay layout of these models. The included spring loaded twist cap maintains system pressure up to 15 psi, helping prevent coolant loss and overheating. The reservoir also comes with a built-in level sensor to monitor coolant levels accurately, ensuring timely maintenance alerts. Mounting brackets are included for a straightforward installation process, although additional mounting hardware is not provided.

Common Applications and Problem Resolution

• Replaces cracked or leaking coolant reservoirs causing coolant loss
• Restores proper coolant pressure to prevent engine overheating
• Fixes faulty or missing coolant level sensors for accurate monitoring
• Addresses coolant contamination due to damaged reservoir caps
• Eliminates coolant system air leaks from damaged or warped reservoirs

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid injury from hot coolant. The Dorman 603-046 reservoir includes mounting brackets and requires two mounting holes for secure attachment. While mounting hardware is not included, compatible bolts and fasteners can be reused from the original reservoir. Verify the spring loaded twist cap is properly seated to maintain system pressure. After installation, refill the reservoir with the recommended coolant and check for leaks during engine warm-up.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-046 engine coolant reservoir undergoes rigorous quality control to ensure durability and reliable performance in Ford F-250, F-250 HD, and F-350 trucks. This part includes a limited warranty covering defects in material and workmanship under normal use conditions.