Dorman 603-5133 Heavy Duty Pressurized Engine Coolant Reservoir

The Dorman 603-5133 is a heavy-duty pressurized engine coolant reservoir designed as a direct replacement for select International truck models. This aftermarket reservoir is engineered to restore proper coolant system function and maintain optimal engine operating temperatures.

Key Features:

• Constructed from quality materials engineered to withstand extreme under-hood heat and engine vibration
• Pressurized design maintains proper cooling system pressure for efficient operation
• Direct-fit replacement designed to match the original equipment in fit, form, and function
• Heavy-duty construction for commercial vehicle applications
• Includes necessary mounting points for straightforward installation

This coolant reservoir is specifically designed for International medium and heavy-duty trucks. Dorman's engineering ensures this replacement part meets the demanding requirements of commercial vehicle service, providing reliable coolant storage and overflow capacity to protect your engine from overheating.