HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-757 Engine Coolant Reservoir - Front
Part #: 603-757

Dorman 603-757 Engine Coolant Reservoir - Front

Front
⚙️ 38 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Subaru, XV, Crosstrek, Impreza, WRX STI, XV Crosstrek, WRX, and Forester
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Reliable Engine Coolant Reservoir for Subaru Vehicles

The Dorman 603-757 engine coolant reservoir is designed specifically for select Subaru models, including the Crosstrek, Forester, Impreza, WRX, WRX STI, XV, and XV Crosstrek. This clear plastic reservoir provides a durable and precise fit to help maintain your vehicle's cooling system performance.

  • Constructed from durable plastic material for long-lasting use
  • Clear color allows easy monitoring of coolant levels
  • Includes a flip-top cap for convenient access and secure sealing
  • Capacity of 450 ml to meet cooling system requirements
  • Two mounting holes for secure installation (mounting hardware not included)
  • Non-pressurized design compatible with specified Subaru models
  • Cap included for a complete replacement solution

Product Details and Specifications

The Dorman 603-757 engine coolant reservoir measures 6.25 inches in length and 13.5 inches in height, featuring an irregular shape tailored to fit the engine bay of Subaru Crosstrek, Forester, Impreza, WRX, WRX STI, XV, and XV Crosstrek models. The clear plastic construction allows for easy visual inspection of coolant levels without removing the cap. This reservoir comes with a flip-top cap that is included in the package, ensuring a proper seal to prevent coolant loss. It is designed as a non-pressurized tank and does not include a level sensor or mounting hardware, so existing brackets and fasteners should be reused during installation.

Compatible Subaru Models and Applications

This engine coolant reservoir is compatible with the following Subaru vehicles:

  • Subaru Crosstrek
  • Subaru Forester
  • Subaru Impreza
  • Subaru WRX and WRX STI
  • Subaru XV and XV Crosstrek

Common Issues Addressed by This Coolant Reservoir

  • Cracked or leaking coolant reservoir tanks
  • Coolant contamination due to damaged or missing caps
  • Inaccurate coolant level readings from discolored or opaque reservoirs
  • Coolant overflow or loss caused by faulty reservoir seals
  • Replacement of worn or brittle plastic reservoirs to prevent engine overheating

Installation Notes and Tips

When installing the Dorman 603-757 coolant reservoir, ensure the vehicle is cool and the engine is off. Remove the old reservoir carefully to avoid spilling coolant. This reservoir requires reuse of existing mounting hardware as none is included. Align the two mounting holes properly and secure the reservoir firmly. Fill the reservoir with the appropriate coolant mixture and check for leaks after installation. The flip-top cap should be securely closed to maintain system integrity.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-757 engine coolant reservoir undergoes quality inspections 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 warranty policy for complete information.

BrandDorman
Part Number603-757
Cap IncludedYes
Cap TypeFlip Top
Capacity450 mL
ColorClear
Height13.5
Length6.25
Level Sensor IncludedNo
MaterialPlastic
Mounting Brackets IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Package Contents1 Coolant Reservoir; 1 Cap
PressurizedNo
ShapeIrregular

This part fits 38 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2018SubaruXV2.0LH4Front
2017SubaruCrosstrek2.0LH4Front
2016SubaruCrosstrek2.0LH4Front
2016SubaruImpreza2.0LH4Front
2016SubaruXV2.0LH4Front
2015SubaruImpreza2.0LH4Front
2015SubaruWRX STI2.5LH4Front
2015SubaruXV2.0LH4Front
2015SubaruXV Crosstrek2.0LH4Front
2014SubaruImpreza2.0LH4Front
2014SubaruImpreza2.5LH4Front
2014SubaruWRX2.5LH4Front
2014SubaruWRX STI2.5LH4Front
2014SubaruXV2.0LH4Front
2014SubaruXV Crosstrek2.0LH4Front
2013SubaruForester2.5LH4Front
2013SubaruImpreza2.0LH4Front
2013SubaruImpreza2.5LH4Front
2013SubaruWRX2.5LH4Front
2013SubaruWRX STI2.5LH4Front
2013SubaruXV2.0LH4Front
2013SubaruXV Crosstrek2.0LH4Front
2012SubaruForester2.5LH4Front
2012SubaruImpreza2.0LH4Front
2012SubaruImpreza2.5LH4Front
2012SubaruWRX2.5LH4Front
2011SubaruForester2.5LH4Front
2011SubaruImpreza2.0LH4Front
2011SubaruImpreza2.5LH4Front
2010SubaruForester2.5LH4Front
2010SubaruImpreza2.0LH4Front
2010SubaruImpreza2.5LH4Front
2009SubaruForester2.5LH4Front
2009SubaruImpreza2.0LH4Front
2009SubaruImpreza2.5LH4Front
2009SubaruImprezaFrontH4 2.0L (1994cc)
2008SubaruImpreza2.0LH4Front
2008SubaruImpreza2.5LH4Front

* 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:

45150AG001

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