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Dorman 603-358 Engine Coolant Reservoir - Front
Reliable Engine Coolant Reservoir for Ford Fusion and Lincoln MKZ
The Dorman 603-358 engine coolant reservoir is designed to maintain optimal coolant levels and pressure in your Ford Fusion or Lincoln MKZ. Crafted from durable clear plastic, this reservoir allows for easy fluid level monitoring and is built to meet the demands of your vehicle's cooling system.
- Constructed from clear plastic for easy coolant level visibility
- Includes one coolant reservoir and one spring loaded twist cap
- Cap is pressurized with a maximum pressure rating of 16 psi
- Equipped with two mounting holes for secure installation
- Compatible with Ford Fusion and Lincoln MKZ models
Durable Design and Functional Features
This engine coolant reservoir by Dorman is engineered to replace the original part with precision fitment for Ford Fusion and Lincoln MKZ vehicles. The clear plastic material provides durability while allowing you to visually inspect coolant levels without removing the cap. The included spring loaded twist cap is pressurized to 16 psi, ensuring the cooling system maintains proper pressure to prevent overheating and coolant loss. Although mounting hardware and brackets are not included, the reservoir features two mounting holes to facilitate straightforward installation using existing vehicle components.
Purpose and Common Issues Addressed
- Maintains proper coolant levels to prevent engine overheating
- Replaces cracked or leaking coolant reservoirs
- Restores pressurization in the cooling system to improve efficiency
- Prevents coolant contamination by providing a sealed environment
- Helps avoid engine damage caused by coolant loss or pressure failure
Installation Notes and Tips
Installation of the Dorman 603-358 engine coolant reservoir requires removal of the old reservoir and securing the new one using the two mounting holes. Since mounting hardware and brackets are not included, reuse the original components or acquire compatible hardware separately. Ensure the spring loaded twist cap is properly tightened to maintain system pressure. Always check for leaks after installation and refill the coolant to the recommended level for your Ford Fusion or Lincoln MKZ.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and fitment. The 603-358 engine coolant reservoir undergoes quality checks to ensure durability and functionality. Please refer to Dorman's warranty policy for specific coverage details.
| Brand | Dorman |
| Part Number | 603-358 |
| Cap Included | Yes |
| Cap Maximum Pressure Rating | 16 |
| Cap Type | Spring Loaded Twist |
| Color | Clear |
| Material | Plastic |
| Mounting Brackets Included | No |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 2 |
| Package Contents | 1 Coolant Reservoir; 1 Cap |
| Pressurized | Yes |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2011 | Ford | Fusion | 3.5L | V6 | Front | w/2 Ports |
| 2011 | Lincoln | MKZ | 3.5L | V6 | Front | w/2 Ports |
| 2010 | Ford | Fusion | 3.5L | V6 | Front | w/2 Ports |
| 2010 | Lincoln | MKZ | 3.5L | V6 | Front | w/2 Ports |
| 2009 | Lincoln | MKZ | 3.5L | V6 | Front | w/2 Ports |
| 2008 | Lincoln | MKZ | 3.5L | V6 | Front | w/2 Ports |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.