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Dorman 603-205 Engine Coolant Reservoir - Front
Overview of Dorman Engine Coolant Reservoir 603-205
The Dorman 603-205 engine coolant reservoir is designed for reliable cooling system performance in Ford Escape, Mazda Tribute, and Mercury Mariner vehicles. This clear plastic reservoir includes a spring loaded twist cap and mounting brackets for secure installation.
- Constructed from durable clear plastic material
- Dimensions: 204.3 mm length and 270.6 mm height
- Includes spring loaded twist cap rated for 17 psi maximum pressure
- Pressurized reservoir design for efficient coolant management
- Equipped with two mounting holes and included mounting brackets
- Cap and reservoir included in the package
Detailed Product Description
The Dorman 603-205 engine coolant reservoir is engineered to meet the cooling system requirements of select Ford, Mazda, and Mercury models, specifically the Escape, Tribute, and Mariner. Made from clear plastic, the reservoir allows for easy visual inspection of coolant levels. Its pressurized design supports optimal coolant flow and system pressure, with a spring loaded twist cap rated to withstand up to 17 psi. The reservoir measures 204.3 mm in length and 270.6 mm in height, fitting precisely within the engine bay. Two mounting holes and included brackets ensure a secure and stable installation without the need for additional hardware.
Common Applications and Problem Resolution
- Replacement for cracked or leaking coolant reservoirs
- Restores proper coolant level monitoring and containment
- Prevents coolant loss due to faulty or damaged reservoirs
- Maintains system pressure to avoid overheating issues
- Addresses coolant reservoir cap failures affecting pressure regulation
Installation Notes and Tips
- Verify compatibility with Ford Escape, Mazda Tribute, or Mercury Mariner before installation
- Ensure the engine is cool before removing the old reservoir to avoid injury
- Use the included mounting brackets and two mounting holes for secure fitment
- Check the spring loaded twist cap for proper sealing after installation
- Inspect coolant levels and system pressure after replacement
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 603-205 engine coolant reservoir undergoes quality control testing to ensure durability and performance under normal operating conditions. This part includes the reservoir and cap, both designed for long-term reliability. Warranty coverage details can be obtained from the product documentation or manufacturer.
| Brand | Dorman |
| Part Number | 603-205 |
| Cap Included | Yes |
| Cap Maximum Pressure Rating | 17 |
| Cap Type | Spring Loaded Twist |
| Color | Clear |
| Height | 270.6 |
| Length | 204.3 |
| Material | Plastic |
| Mounting Brackets Included | Yes |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 2 |
| Package Contents | 1 Coolant Reservoir; 1 Cap |
| Pressurized | Yes |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Ford | Escape | 3.0L | V6 | Front | |
| 2006 | Mazda | Tribute | 2.3L | L4 | Front | |
| 2006 | Mazda | Tribute | 3.0L | V6 | Front | |
| 2006 | Mercury | Mariner | 3.0L | V6 | Front | |
| 2005 | Ford | Escape | 3.0L | V6 | Front | |
| 2005 | Mazda | Tribute | 2.3L | L4 | Front | |
| 2005 | Mazda | Tribute | 3.0L | V6 | Front | |
| 2005 | Mercury | Mariner | 3.0L | V6 | Front | |
| 2004 | Ford | Escape | 3.0L | V6 | Front | |
| 2004 | Mazda | Tribute | 3.0L | V6 | Front | |
| 2003 | Ford | Escape | 3.0L | V6 | Front | |
| 2003 | Mazda | Tribute | 3.0L | V6 | Front | |
| 2002 | Ford | Escape | 3.0L | V6 | Front | |
| 2002 | Mazda | Tribute | 3.0L | V6 | Front | |
| 2001 | Ford | Escape | 3.0L | V6 | Front | |
| 2001 | Mazda | Tribute | 3.0L | V6 | 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.