Dorman 603-5247 Engine Coolant Reservoir

Engine Coolant Reservoir for OE-Style Cooling Repair

Dorman 603-5247 is a replacement engine coolant reservoir built from metal and plastic materials to handle underhood heat and engine vibration. It matches the original part’s fit and function for a direct cooling-system repair on select applications, including vehicle searches for coolant reservoir replacement on Ford and International models.

• Engine coolant reservoir with clear body for fluid level visibility
• Pressurized design with 15 psi cap rating
• Spring-loaded twist cap included
• Level sensor included for reservoir monitoring
• Mounting brackets included; 8 mounting holes
• 8 L capacity for cooling-system expansion and recovery
• Irregular shape, 22 in. length, 16 in. height

Detailed Product Information

This Dorman coolant reservoir, part number 603-5247, is engineered as a direct replacement for the original engine coolant reservoir used in select heavy-duty and commercial cooling systems. The clear reservoir body helps with visual coolant checks, while the pressurized construction, included cap, and level sensor support proper system operation. If you are searching for Dorman 603-5247 coolant reservoir replacement for Ford or International truck cooling system service, this part is built to match the original fit and function.

This part cross-references 2604896C1 and 2604896C3 for the same application.

What This Part Helps Address

• Cracked or leaking coolant reservoir housing
• Loss of coolant from a damaged expansion tank
• Faulty reservoir cap sealing or pressure retention
• Inaccurate coolant level monitoring from a worn sensor
• Cooling-system service needs on select Ford and International applications

Installation Notes and Tips

Verify reservoir mounting points, hose routing, cap style, and sensor connection before installation. Transfer or connect all cooling-system lines and electrical connections according to the vehicle’s service procedure, then refill and bleed the system to remove trapped air. Confirm the cap seats correctly and inspect for leaks after the engine reaches operating temperature. Fits should be confirmed against the original reservoir shape, mounting hole count, and pressure rating for the specific application.

Quality Assurance

Dorman manufactures this replacement coolant reservoir from materials selected to withstand heat and vibration in the engine bay. It is engineered to match the original part’s fit and function for dependable cooling-system service.