Dorman 603-397 Engine Coolant Reservoir - Front
Engine Coolant Reservoir for OE-Style Replacement
Dorman 603-397 is a replacement engine coolant reservoir built from plastic to handle underhood heat and engine vibration. It matches the original part’s fit and function for a direct-style cooling system repair on the correct application.
Key Features
- Plastic construction for cooling system service
- White reservoir body for easy visual inspection
- Spring-loaded twist cap design
- Pressurized reservoir with a 20 psi cap rating
- Mounting brackets included for proper installation support
- Engineered to match OE fit and function
Product Details
This Dorman coolant reservoir, part number 603-397, is made to replace a damaged or aging expansion tank in the engine cooling system. It is designed for vehicles that use a pressurized reservoir with a spring-loaded twist cap, helping maintain proper coolant level management and system operation. For buyers searching for a Dorman 603-397 coolant reservoir or an OE-style engine coolant reservoir replacement, this part provides the correct form and function for the listed application. This part cross-references 98KU8K218AD and 1107521 for the same application.
What It Helps Fix
- Coolant leaks from a cracked or worn reservoir
- Low coolant level warnings caused by tank failure
- Visible coolant staining around the expansion tank
- Reservoir damage from heat cycling and vibration
- Cap sealing issues on a pressurized cooling system
Installation Notes and Tips
Verify reservoir shape, mounting points, cap style, and pressure rating before installation. This Dorman 603-397 coolant reservoir uses a spring-loaded twist cap and includes mounting brackets, but mounting hardware is not included. Confirm the vehicle’s cooling system layout and transfer any reusable components as needed during service.
Quality Assurance
Dorman manufactures this replacement reservoir from quality materials to withstand underhood heat and engine vibration. It is engineered to match the original part’s fit and function for dependable cooling system service.
Original: $32.44
-65%$32.44
$11.35Dorman 603-397 Engine Coolant Reservoir - Front
Engine Coolant Reservoir for OE-Style Replacement
Dorman 603-397 is a replacement engine coolant reservoir built from plastic to handle underhood heat and engine vibration. It matches the original part’s fit and function for a direct-style cooling system repair on the correct application.
Key Features
- Plastic construction for cooling system service
- White reservoir body for easy visual inspection
- Spring-loaded twist cap design
- Pressurized reservoir with a 20 psi cap rating
- Mounting brackets included for proper installation support
- Engineered to match OE fit and function
Product Details
This Dorman coolant reservoir, part number 603-397, is made to replace a damaged or aging expansion tank in the engine cooling system. It is designed for vehicles that use a pressurized reservoir with a spring-loaded twist cap, helping maintain proper coolant level management and system operation. For buyers searching for a Dorman 603-397 coolant reservoir or an OE-style engine coolant reservoir replacement, this part provides the correct form and function for the listed application. This part cross-references 98KU8K218AD and 1107521 for the same application.
What It Helps Fix
- Coolant leaks from a cracked or worn reservoir
- Low coolant level warnings caused by tank failure
- Visible coolant staining around the expansion tank
- Reservoir damage from heat cycling and vibration
- Cap sealing issues on a pressurized cooling system
Installation Notes and Tips
Verify reservoir shape, mounting points, cap style, and pressure rating before installation. This Dorman 603-397 coolant reservoir uses a spring-loaded twist cap and includes mounting brackets, but mounting hardware is not included. Confirm the vehicle’s cooling system layout and transfer any reusable components as needed during service.
Quality Assurance
Dorman manufactures this replacement reservoir from quality materials to withstand underhood heat and engine vibration. It is engineered to match the original part’s fit and function for dependable cooling system service.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Engine Coolant Reservoir for OE-Style Replacement
Dorman 603-397 is a replacement engine coolant reservoir built from plastic to handle underhood heat and engine vibration. It matches the original part’s fit and function for a direct-style cooling system repair on the correct application.
Key Features
- Plastic construction for cooling system service
- White reservoir body for easy visual inspection
- Spring-loaded twist cap design
- Pressurized reservoir with a 20 psi cap rating
- Mounting brackets included for proper installation support
- Engineered to match OE fit and function
Product Details
This Dorman coolant reservoir, part number 603-397, is made to replace a damaged or aging expansion tank in the engine cooling system. It is designed for vehicles that use a pressurized reservoir with a spring-loaded twist cap, helping maintain proper coolant level management and system operation. For buyers searching for a Dorman 603-397 coolant reservoir or an OE-style engine coolant reservoir replacement, this part provides the correct form and function for the listed application. This part cross-references 98KU8K218AD and 1107521 for the same application.
What It Helps Fix
- Coolant leaks from a cracked or worn reservoir
- Low coolant level warnings caused by tank failure
- Visible coolant staining around the expansion tank
- Reservoir damage from heat cycling and vibration
- Cap sealing issues on a pressurized cooling system
Installation Notes and Tips
Verify reservoir shape, mounting points, cap style, and pressure rating before installation. This Dorman 603-397 coolant reservoir uses a spring-loaded twist cap and includes mounting brackets, but mounting hardware is not included. Confirm the vehicle’s cooling system layout and transfer any reusable components as needed during service.
Quality Assurance
Dorman manufactures this replacement reservoir from quality materials to withstand underhood heat and engine vibration. It is engineered to match the original part’s fit and function for dependable cooling system service.
