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Dorman 603-135 Engine Coolant Reservoir - Front
Overview of Dorman Engine Coolant Reservoir for Ford Escape and Mercury Mariner
The Dorman 603-135 engine coolant reservoir is designed specifically for Ford Escape and Mercury Mariner models. Made from durable clear plastic, this pressurized coolant reservoir includes a spring loaded twist cap rated for a maximum pressure of 17 psi, ensuring reliable performance in your vehicle's cooling system.
- Material: Clear plastic construction for easy fluid level monitoring
- Pressurized reservoir with a spring loaded twist cap included
- Cap maximum pressure rating of 17 psi for optimal system pressure
- Includes one coolant reservoir and one cap in the package
- Two mounting holes for secure installation (mounting hardware and brackets not included)
Detailed Product Description
The Dorman 603-135 engine coolant reservoir is engineered to meet the cooling system requirements of Ford Escape and Mercury Mariner vehicles. Its clear plastic material allows for quick visual inspection of coolant levels without removing the cap. The reservoir is pressurized to maintain proper coolant flow and pressure, with a spring loaded twist cap that helps prevent leaks and maintains system integrity. The cap included with this reservoir is rated for a maximum pressure of 17 psi, which aligns with the specifications of the original equipment. The reservoir features two mounting holes for installation, though mounting hardware and brackets are not included, allowing for compatibility with existing vehicle mounts.
Common Applications and Issues Addressed
- Replacement of cracked or leaking coolant reservoirs in Ford Escape and Mercury Mariner
- Restoring proper coolant pressure to prevent overheating
- Resolving coolant loss due to damaged or faulty reservoir caps
- Maintaining coolant system integrity after collision or wear
- Ensuring accurate coolant level monitoring with clear reservoir material
Installation Notes and Tips
When installing the Dorman 603-135 engine coolant reservoir, ensure the vehicle is cool to avoid injury from hot coolant. Use the existing mounting hardware or brackets from the original reservoir, as this product does not include them. Verify that the spring loaded twist cap is securely tightened to maintain system pressure. After installation, check for leaks and proper coolant levels before operating the vehicle.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-135 engine coolant reservoir undergoes quality inspections to ensure durability and performance. Please refer to Dorman's warranty policy for specific coverage details.
| Brand | Dorman |
| Part Number | 603-135 |
| Cap Included | Yes |
| Cap Maximum Pressure Rating | 17 |
| 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 | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2007 | Ford | Escape | 2.3L | L4 | GAS | Front | |
| 2007 | Mercury | Mariner | 2.3L | L4 | GAS | Front | |
| 2006 | Ford | Escape | 2.3L | L4 | GAS | Front | |
| 2006 | Mercury | Mariner | 2.3L | L4 | GAS | Front | |
| 2005 | Ford | Escape | 2.3L | L4 | GAS | Front | |
| 2005 | Mercury | Mariner | 2.3L | L4 | GAS | Front |
* 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.