Dorman 603-026 Engine Coolant Reservoir - Front

Reliable Engine Coolant Reservoir for Ford and Lincoln Vehicles

The Dorman 603-026 engine coolant reservoir is designed to maintain optimal cooling system performance for select Ford and Lincoln models. Constructed from durable plastic, this white coolant reservoir ensures proper coolant storage and pressure management for your vehicle's engine.

• Made from high-quality plastic material for durability
• Compatible with Ford Blackwood, Expedition, F-150, F-150 Heritage, F-250, and Lincoln Navigator
• Includes a spring-loaded twist cap rated for 16 psi pressure
• Pressurized reservoir design to maintain system integrity
• Dimensions: 283 mm length, 197 mm height with 3 mounting holes
• Cap included for secure sealing and pressure control

Product Details and Specifications

The Dorman 603-026 engine coolant reservoir is a direct replacement part engineered to meet or exceed OEM specifications. Its white plastic construction resists corrosion and withstands engine bay temperatures. The reservoir features a spring-loaded twist cap that maintains a maximum pressure rating of 16 psi, helping to prevent coolant loss and overheating. With three mounting holes, it can be securely installed without included brackets or hardware, making it compatible with the mounting points on Ford and Lincoln vehicles such as the F-150 and Navigator.

Compatible Vehicles and Applications

This engine coolant reservoir is compatible with a range of Ford and Lincoln models, including:

• Ford Blackwood
• Ford Expedition
• Ford F-150 and F-150 Heritage
• Ford F-250
• Lincoln Navigator

It is designed to replace worn or damaged coolant reservoirs that can cause coolant leaks, overheating, or pressure loss in the cooling system.

Common Issues Addressed by This Coolant Reservoir

• Coolant leaks due to cracked or damaged reservoir tanks
• Loss of coolant pressure affecting engine temperature regulation
• Overheating caused by insufficient coolant storage
• Faulty or missing reservoir caps leading to coolant evaporation
• Degraded plastic reservoirs that compromise cooling system integrity

Installation Notes and Tips

Installation of the Dorman 603-026 engine coolant reservoir requires no additional mounting hardware or brackets, as it uses existing mounting points with three holes. Ensure the old reservoir is fully drained before removal to avoid coolant spills. When installing, verify the spring-loaded twist cap is properly seated to maintain system pressure. It is recommended to inspect hoses and clamps during installation for any signs of wear or damage.

Quality Assurance and Warranty

Dorman parts are manufactured to meet strict quality standards, ensuring reliable performance and fitment. The 603-026 engine coolant reservoir includes the cap and is designed for pressurized cooling systems up to 16 psi. While specific warranty details may vary, Dorman typically offers coverage against defects in material and workmanship to provide confidence in your replacement part.