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Dorman 603-056 Engine Coolant Reservoir - Front
Reliable Engine Coolant Reservoir for Chrysler and Dodge Vehicles
The Dorman 603-056 engine coolant reservoir is designed to maintain optimal cooling system performance for select Chrysler and Dodge models. Crafted from durable plastic, this reservoir ensures efficient coolant storage and pressure management for your vehicle's engine.
- Constructed from high-quality plastic for durability
- Dimensions: 355mm length and 274mm height for precise fitment
- Includes a spring loaded twist cap rated for 18 psi pressure
- Pressurized reservoir with two mounting holes for secure installation
- Cap included for immediate replacement needs
Product Details and Specifications
This engine coolant reservoir by Dorman is specifically engineered for compatibility with Chrysler 300, Dodge Challenger, Charger, and Magnum models. The irregular shape of the reservoir is designed to fit seamlessly within the engine bay, optimizing space without compromising capacity. The included spring loaded twist cap maintains system pressure up to 18 psi, which is critical for preventing coolant loss and overheating. Although mounting hardware and brackets are not included, the reservoir features two mounting holes to facilitate straightforward installation using existing vehicle components.
Compatible Vehicles and Applications
This coolant reservoir is compatible with the following vehicles:
- Chrysler 300
- Dodge Challenger
- Dodge Charger
- Dodge Magnum
It is designed to replace worn or damaged reservoirs that may cause coolant leaks, pressure loss, or engine overheating.
Common Issues Addressed by This Coolant Reservoir
- Coolant leaks due to cracked or damaged reservoir tanks
- Loss of system pressure causing engine overheating
- Faulty or missing reservoir caps leading to coolant evaporation
- Inadequate coolant storage affecting engine temperature regulation
- Degraded plastic reservoirs that compromise cooling system integrity
Installation Notes and Tips
Installation of the Dorman 603-056 engine coolant reservoir requires removal of the old reservoir and securing the new unit using the vehicle’s existing mounting points. Since mounting hardware and brackets are not included, ensure that your current hardware is in good condition or obtain replacements as needed. The spring loaded twist cap should be properly tightened to maintain system pressure. Always allow the engine to cool before beginning installation to avoid injury from hot coolant.
Quality Assurance and Warranty Information
Dorman manufactures this engine coolant reservoir to meet or exceed OEM specifications for fit, form, and function. The part number 603-056 undergoes rigorous quality control to ensure durability and reliable performance in Chrysler and Dodge vehicles. Warranty coverage details can be obtained from the product documentation or manufacturer directly.
| Brand | Dorman |
| Part Number | 603-056 |
| Cap Included | Yes |
| Cap Maximum Pressure Rating | 18 |
| Cap Type | Spring Loaded Twist |
| Color | White |
| Height | 274 |
| Length | 355 |
| Material | Plastic |
| Mounting Brackets Included | No |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 2 |
| Package Contents | 1 Coolant Reservoir; 1 Cap |
| Pressurized | Yes |
| Shape | Irregular |
This part fits 66 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Chrysler | 300 | 5.7L | V8 | Front | |
| 2010 | Chrysler | 300 | 6.1L | V8 | Front | |
| 2010 | Chrysler | 300 | 3.5L | V6 | Front | |
| 2010 | Chrysler | 300 | 2.7L | V6 | Front | |
| 2010 | Dodge | Challenger | 5.7L | V8 | Front | |
| 2010 | Dodge | Challenger | 6.1L | V8 | Front | |
| 2010 | Dodge | Challenger | 3.5L | V6 | Front | |
| 2010 | Dodge | Charger | 5.7L | V8 | Front | |
| 2010 | Dodge | Charger | 6.1L | V8 | Front | |
| 2010 | Dodge | Charger | 3.5L | V6 | Front | |
| 2010 | Dodge | Charger | 2.7L | V6 | Front | |
| 2009 | Chrysler | 300 | 5.7L | V8 | Front | |
| 2009 | Chrysler | 300 | 6.1L | V8 | Front | |
| 2009 | Chrysler | 300 | 3.5L | V6 | Front | |
| 2009 | Chrysler | 300 | 2.7L | V6 | Front | |
| 2009 | Dodge | Challenger | 5.7L | V8 | Front | |
| 2009 | Dodge | Challenger | 6.1L | V8 | Front | |
| 2009 | Dodge | Challenger | 3.5L | V6 | Front | |
| 2009 | Dodge | Charger | 5.7L | V8 | Front | |
| 2009 | Dodge | Charger | 6.1L | V8 | Front | |
| 2009 | Dodge | Charger | 3.5L | V6 | Front | |
| 2009 | Dodge | Charger | 2.7L | V6 | Front | |
| 2008 | Chrysler | 300 | 5.7L | V8 | Front | |
| 2008 | Chrysler | 300 | 6.1L | V8 | Front | |
| 2008 | Chrysler | 300 | 3.5L | V6 | Front | |
| 2008 | Chrysler | 300 | 2.7L | V6 | Front | |
| 2008 | Dodge | Challenger | 6.1L | V8 | Front | |
| 2008 | Dodge | Charger | 5.7L | V8 | Front | |
| 2008 | Dodge | Charger | 6.1L | V8 | Front | |
| 2008 | Dodge | Charger | 3.5L | V6 | Front | |
| 2008 | Dodge | Charger | 2.7L | V6 | Front | |
| 2008 | Dodge | Magnum | 5.7L | V8 | Front | |
| 2008 | Dodge | Magnum | 6.1L | V8 | Front | |
| 2008 | Dodge | Magnum | 3.5L | V6 | Front | |
| 2008 | Dodge | Magnum | 2.7L | V6 | Front | |
| 2007 | Chrysler | 300 | 5.7L | V8 | Front | |
| 2007 | Chrysler | 300 | 6.1L | V8 | Front | |
| 2007 | Chrysler | 300 | 3.5L | V6 | Front | |
| 2007 | Chrysler | 300 | 2.7L | V6 | Front | |
| 2007 | Dodge | Charger | 5.7L | V8 | Front | |
| 2007 | Dodge | Charger | 6.1L | V8 | Front | |
| 2007 | Dodge | Charger | 3.5L | V6 | Front | |
| 2007 | Dodge | Charger | 2.7L | V6 | Front | |
| 2007 | Dodge | Magnum | 5.7L | V8 | Front | |
| 2007 | Dodge | Magnum | 6.1L | V8 | Front | |
| 2007 | Dodge | Magnum | 3.5L | V6 | Front | |
| 2007 | Dodge | Magnum | 2.7L | V6 | Front | |
| 2006 | Chrysler | 300 | 5.7L | V8 | Front | |
| 2006 | Chrysler | 300 | 6.1L | V8 | Front | |
| 2006 | Chrysler | 300 | 3.5L | V6 | Front | |
| 2006 | Chrysler | 300 | 2.7L | V6 | Front | |
| 2006 | Dodge | Charger | 5.7L | V8 | Front | |
| 2006 | Dodge | Charger | 6.1L | V8 | Front | |
| 2006 | Dodge | Charger | 3.5L | V6 | Front | |
| 2006 | Dodge | Charger | 2.7L | V6 | Front | |
| 2006 | Dodge | Magnum | 5.7L | V8 | Front | |
| 2006 | Dodge | Magnum | 6.1L | V8 | Front | |
| 2006 | Dodge | Magnum | 3.5L | V6 | Front | |
| 2006 | Dodge | Magnum | 2.7L | V6 | Front | |
| 2005 | Chrysler | 300 | 5.7L | V8 | Front | |
| 2005 | Chrysler | 300 | 6.1L | V8 | Front | |
| 2005 | Chrysler | 300 | 3.5L | V6 | Front | |
| 2005 | Chrysler | 300 | 2.7L | V6 | Front | |
| 2005 | Dodge | Magnum | 5.7L | V8 | Front | |
| 2005 | Dodge | Magnum | 3.5L | V6 | Front | |
| 2005 | Dodge | Magnum | 2.7L | 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.