Dorman 603-5570 Engine Coolant Reservoir
Engine Coolant Reservoir Replacement
Dorman 603-5570 is a replacement engine coolant reservoir built from plastic to handle underhood heat and engine vibration. It is engineered to match the original fit and function for service on compatible applications, including Chevrolet Silverado and GMC Sierra cooling system repairs.
Key Features
- Direct replacement engine coolant reservoir for OE-style fit and function
- Plastic construction with black and natural finish
- Pressurized design with a spring-loaded twist cap
- Cap pressure rating: 15 psi
- Level sensor included for reservoir monitoring
- Mounting brackets included; mounting hardware not included
- Irregular shape with 4 mounting holes and 4 mounting points
- Working capacity: 5.9 L; maximum capacity: 7.5 L
Detailed Description
This Dorman coolant reservoir, part number 603-5570, is manufactured to replace a damaged or aging expansion tank in the engine cooling system. The reservoir is pressurized and includes a spring-loaded twist cap, helping maintain proper coolant storage and system operation in vehicles that use this style of tank. The integrated level sensor provision supports coolant level monitoring, while the OE-grade construction helps it match the original part’s fit and function. For shoppers searching for a Chevrolet Silverado coolant reservoir replacement or GMC Sierra coolant reservoir replacement, 603-5570 provides a direct-service solution for the cooling system.
This part cross-references Dorman 603-5570 for the same application.
What It Helps Address
- Cracked or leaking coolant reservoir housing
- Low coolant warnings caused by reservoir damage or sensor issues
- Coolant loss from a worn cap or tank seal area
- Heat-related plastic fatigue in the expansion tank
- Cooling system service needs on Chevrolet Silverado and GMC Sierra applications
Installation Notes and Tips
Verify reservoir shape, mounting points, cap style, and sensor connection before installation. Transfer any required components from the original setup if the vehicle configuration calls for them, and inspect hoses, clamps, and the radiator cap area for wear before refilling the cooling system. After installation, refill with the correct coolant mixture and bleed air from the system according to the vehicle service procedure.
Quality Assurance
Dorman manufactures this reservoir from quality materials to withstand heat and vibration in the engine bay. It is built as an OE-style replacement for dependable fitment on the intended applications.
Original: $308.09
-65%$308.09
$107.83Dorman 603-5570 Engine Coolant Reservoir
Engine Coolant Reservoir Replacement
Dorman 603-5570 is a replacement engine coolant reservoir built from plastic to handle underhood heat and engine vibration. It is engineered to match the original fit and function for service on compatible applications, including Chevrolet Silverado and GMC Sierra cooling system repairs.
Key Features
- Direct replacement engine coolant reservoir for OE-style fit and function
- Plastic construction with black and natural finish
- Pressurized design with a spring-loaded twist cap
- Cap pressure rating: 15 psi
- Level sensor included for reservoir monitoring
- Mounting brackets included; mounting hardware not included
- Irregular shape with 4 mounting holes and 4 mounting points
- Working capacity: 5.9 L; maximum capacity: 7.5 L
Detailed Description
This Dorman coolant reservoir, part number 603-5570, is manufactured to replace a damaged or aging expansion tank in the engine cooling system. The reservoir is pressurized and includes a spring-loaded twist cap, helping maintain proper coolant storage and system operation in vehicles that use this style of tank. The integrated level sensor provision supports coolant level monitoring, while the OE-grade construction helps it match the original part’s fit and function. For shoppers searching for a Chevrolet Silverado coolant reservoir replacement or GMC Sierra coolant reservoir replacement, 603-5570 provides a direct-service solution for the cooling system.
This part cross-references Dorman 603-5570 for the same application.
What It Helps Address
- Cracked or leaking coolant reservoir housing
- Low coolant warnings caused by reservoir damage or sensor issues
- Coolant loss from a worn cap or tank seal area
- Heat-related plastic fatigue in the expansion tank
- Cooling system service needs on Chevrolet Silverado and GMC Sierra applications
Installation Notes and Tips
Verify reservoir shape, mounting points, cap style, and sensor connection before installation. Transfer any required components from the original setup if the vehicle configuration calls for them, and inspect hoses, clamps, and the radiator cap area for wear before refilling the cooling system. After installation, refill with the correct coolant mixture and bleed air from the system according to the vehicle service procedure.
Quality Assurance
Dorman manufactures this reservoir from quality materials to withstand heat and vibration in the engine bay. It is built as an OE-style replacement for dependable fitment on the intended applications.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Engine Coolant Reservoir Replacement
Dorman 603-5570 is a replacement engine coolant reservoir built from plastic to handle underhood heat and engine vibration. It is engineered to match the original fit and function for service on compatible applications, including Chevrolet Silverado and GMC Sierra cooling system repairs.
Key Features
- Direct replacement engine coolant reservoir for OE-style fit and function
- Plastic construction with black and natural finish
- Pressurized design with a spring-loaded twist cap
- Cap pressure rating: 15 psi
- Level sensor included for reservoir monitoring
- Mounting brackets included; mounting hardware not included
- Irregular shape with 4 mounting holes and 4 mounting points
- Working capacity: 5.9 L; maximum capacity: 7.5 L
Detailed Description
This Dorman coolant reservoir, part number 603-5570, is manufactured to replace a damaged or aging expansion tank in the engine cooling system. The reservoir is pressurized and includes a spring-loaded twist cap, helping maintain proper coolant storage and system operation in vehicles that use this style of tank. The integrated level sensor provision supports coolant level monitoring, while the OE-grade construction helps it match the original part’s fit and function. For shoppers searching for a Chevrolet Silverado coolant reservoir replacement or GMC Sierra coolant reservoir replacement, 603-5570 provides a direct-service solution for the cooling system.
This part cross-references Dorman 603-5570 for the same application.
What It Helps Address
- Cracked or leaking coolant reservoir housing
- Low coolant warnings caused by reservoir damage or sensor issues
- Coolant loss from a worn cap or tank seal area
- Heat-related plastic fatigue in the expansion tank
- Cooling system service needs on Chevrolet Silverado and GMC Sierra applications
Installation Notes and Tips
Verify reservoir shape, mounting points, cap style, and sensor connection before installation. Transfer any required components from the original setup if the vehicle configuration calls for them, and inspect hoses, clamps, and the radiator cap area for wear before refilling the cooling system. After installation, refill with the correct coolant mixture and bleed air from the system according to the vehicle service procedure.
Quality Assurance
Dorman manufactures this reservoir from quality materials to withstand heat and vibration in the engine bay. It is built as an OE-style replacement for dependable fitment on the intended applications.
