HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-381 Engine Coolant Reservoir - Front
Part #: 603-381

Dorman 603-381 Engine Coolant Reservoir - Front

Front
⚙️ 14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Fiesta and EcoSport
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Reliable Engine Coolant Reservoir for Ford EcoSport and Fiesta

The Dorman 603-381 engine coolant reservoir is designed to maintain optimal coolant levels and pressure in your Ford EcoSport or Fiesta. Constructed from durable plastic with a white finish, this reservoir includes a spring loaded twist cap rated for 21 psi, ensuring proper system pressurization.

Key Features of Dorman 603-381 Engine Coolant Reservoir

  • Material: Durable plastic construction for corrosion resistance
  • Color: White reservoir for easy coolant level monitoring
  • Cap Type: Spring loaded twist cap included with a 21 psi maximum pressure rating
  • Pressurized design to maintain proper cooling system pressure
  • Mounting holes: Two for secure installation (mounting hardware not included)
  • Package includes one coolant reservoir and one compatible cap

Detailed Description

This engine coolant reservoir by Dorman, part number 603-381, is engineered specifically for Ford EcoSport and Fiesta models. The plastic construction resists corrosion and withstands the heat and pressure of the cooling system. The included spring loaded twist cap maintains system pressure up to 21 psi, which is critical for preventing coolant loss and overheating. With two mounting holes, the reservoir can be securely installed, although mounting hardware and brackets are not included. The white color allows for quick visual checks of coolant levels, helping to identify leaks or low coolant conditions early.

Common Issues Addressed by This Coolant Reservoir

  • Coolant leaks due to cracked or damaged reservoir tanks
  • Loss of cooling system pressure causing engine overheating
  • Inaccurate coolant level readings from discolored or opaque reservoirs
  • Failure of the reservoir cap leading to coolant evaporation or spillage
  • Replacement of worn or brittle plastic reservoirs in Ford EcoSport and Fiesta vehicles

Installation Notes and Tips

  • Ensure the engine is cool before removing the old reservoir to avoid burns
  • Check and replace mounting hardware if necessary, as it is not included
  • Properly tighten the spring loaded twist cap to maintain system pressure
  • Inspect hoses connected to the reservoir for wear or damage during installation
  • After installation, fill the reservoir with the recommended coolant and bleed the system to remove air pockets

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit and function. The 603-381 engine coolant reservoir undergoes rigorous quality control to ensure durability and reliability in Ford EcoSport and Fiesta vehicles. Warranty coverage details can be obtained from the product documentation or Dorman directly.

BrandDorman
Part Number603-381
Cap IncludedYes
Cap Maximum Pressure Rating21
Cap TypeSpring Loaded Twist
ColorWhite
MaterialPlastic
Mounting Brackets IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Package Contents1 Coolant Reservoir; 1 Cap
PressurizedYes

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019FordFiesta1.6LL4N/A
2018FordFiesta1.6LL4Front
2017FordFiesta1.6LL4Front
2017FordFiesta1.0LL3Front
2016FordFiesta1.6LL4Front
2016FordFiesta1.0LL3Front
2015FordFiesta1.6LL4Front
2015FordFiesta1.0LL3Front
2014FordFiesta1.6LL4Front
2014FordFiesta1.0LL3Front
2013FordEcoSport2.0LL4Front
2013FordFiesta1.6LL4Front
2012FordFiesta1.6LL4Front
2011FordFiesta1.6LL4Front

* 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:

BE8Z8100ADAKG-BE8Z8AE88080FRT1524CSK603381

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