HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-630 Engine Coolant Reservoir - Front
Part #: 603-630

Dorman 603-630 Engine Coolant Reservoir - Front

Front
⚙️ 46 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge and Jeep, Durango and Grand Cherokee
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dorman Engine Coolant Reservoir 603-630

The Dorman 603-630 engine coolant reservoir is designed specifically for Dodge Durango and Jeep Grand Cherokee models. This replacement reservoir ensures proper coolant storage and circulation, helping maintain optimal engine temperature and performance.

  • Constructed from durable white plastic for corrosion resistance
  • Includes mounting brackets and a flip-top cap for secure installation and easy access
  • Features three mounting holes for stable attachment
  • Cap included with the reservoir for a complete replacement solution
  • Non-pressurized design suitable for specified vehicle applications
  • Package contains one coolant reservoir, one cap, and tubing

Detailed Product Description

The Dorman 603-630 engine coolant reservoir is manufactured from high-quality plastic, providing a reliable and corrosion-resistant component for your vehicle's cooling system. Its white color allows for easy fluid level inspection. The reservoir comes with mounting brackets and three mounting holes, ensuring a secure fit in Dodge Durango and Jeep Grand Cherokee models. The included flip-top cap allows for convenient coolant refilling and maintenance. This reservoir is designed as a non-pressurized component, matching the original equipment specifications for the compatible vehicles. The package also includes tubing to facilitate proper coolant flow and connection.

Compatible Vehicles and Applications

This engine coolant reservoir is compatible with the following vehicles:

  • Dodge Durango
  • Jeep Grand Cherokee

Use this part number 603-630 when searching for a replacement reservoir for these specific models to ensure proper fit and function.

Common Issues Addressed by This Coolant Reservoir

  • Coolant leaks due to cracked or damaged reservoirs
  • Overheating caused by insufficient coolant storage
  • Difficulty maintaining proper coolant levels
  • Faulty or missing reservoir caps leading to coolant contamination
  • Loose or broken mounting brackets causing reservoir instability

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid injury
  • Use the included mounting brackets and three mounting holes for secure attachment
  • Check all hose connections and tubing for tight seals to prevent leaks
  • Fill the reservoir with the appropriate coolant type recommended for your vehicle
  • Verify the flip-top cap is securely closed after installation

Quality Assurance and Warranty

Dorman parts are engineered to meet or exceed OEM standards for fit, form, and function. The 603-630 engine coolant reservoir undergoes rigorous quality control to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman's official documentation for exact warranty terms.

BrandDorman
Part Number603-630
Cap IncludedYes
Cap TypeFlip Top
ColorWhite
MaterialPlastic
Mounting Brackets IncludedYes
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Coolant Reservoir; 1 Cap; Tubing
PressurizedNo

This part fits 46 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2024DodgeDurango5.7LV8Front
2023DodgeDurango6.4LV8Front
2022DodgeDurango6.4LV8Front
2021DodgeDurango6.2LV8Front
2021JeepGrand Cherokee6.2LV8Front
2020DodgeDurango5.7LV8Front
2020JeepGrand Cherokee6.4LV8Front
2019DodgeDurango5.7LV8Front
2019DodgeDurango6.4LV8Front
2019JeepGrand Cherokee5.7LV8Front
2019JeepGrand Cherokee6.4LV8Front
2019JeepGrand Cherokee6.2LV8Front
2018DodgeDurango5.7LV8Front
2018DodgeDurango6.4LV8Front
2018JeepGrand Cherokee5.7LV8Front
2018JeepGrand Cherokee6.4LV8Front
2017DodgeDurango5.7LV8Front
2017JeepGrand Cherokee5.7LV8Front
2017JeepGrand Cherokee6.4LV8Front
2016DodgeDurango5.7LV8Front
2016JeepGrand Cherokee5.7LV8Front
2016JeepGrand Cherokee6.4LV8Front
2015DodgeDurango5.7LV8Front
2015DodgeDurango3.6LV6Front
2015JeepGrand Cherokee5.7LV8Front
2015JeepGrand Cherokee3.6LV6Front
2015JeepGrand Cherokee6.4LV8Front
2014DodgeDurango5.7LV8Front
2014DodgeDurango3.6LV6Front
2014JeepGrand Cherokee5.7LV8Front
2014JeepGrand Cherokee3.6LV6Front
2014JeepGrand Cherokee6.4LV8Front
2013DodgeDurango5.7LV8Front
2013DodgeDurango3.6LV6Front
2013JeepGrand Cherokee5.7LV8Front
2013JeepGrand Cherokee3.6LV6Front
2013JeepGrand Cherokee6.4LV8Front
2012DodgeDurango5.7LV8Front
2012DodgeDurango3.6LV6Front
2012JeepGrand Cherokee5.7LV8Front
2012JeepGrand Cherokee3.6LV6Front
2012JeepGrand Cherokee6.4LV8Front
2011DodgeDurango5.7LV8Front
2011DodgeDurango3.6LV6Front
2011JeepGrand Cherokee5.7LV8Front
2011JeepGrand Cherokee3.6LV6Front

* 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:

5165708AA

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.