HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-452 Engine Coolant Reservoir - Front
Part #: 603-452

Dorman 603-452 Engine Coolant Reservoir - Front

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

The Dorman 603-452 engine coolant reservoir is designed to maintain optimal coolant levels and pressure in your Toyota Hiace. Made from durable clear plastic, this reservoir allows for easy fluid level monitoring and is built to withstand pressurized cooling systems.

  • Constructed from durable clear plastic for visibility and longevity
  • Includes a spring loaded twist cap to maintain system pressure
  • Pressurized design compatible with Toyota Hiace cooling systems
  • Comes with one mounting hole for secure installation
  • Cap included for a complete replacement solution

Product Details and Specifications

This engine coolant reservoir by Dorman, part number 603-452, is engineered specifically for Toyota Hiace models. The clear plastic material provides a transparent view of coolant levels, helping you monitor fluid without removing the cap. The spring loaded twist cap is designed to maintain the necessary pressure within the cooling system, ensuring efficient engine temperature regulation. Although mounting hardware and brackets are not included, the reservoir features a single mounting hole for straightforward installation using existing vehicle components.

Compatible Applications and Common Uses

  • Replacement for cracked or leaking coolant reservoirs in Toyota Hiace vehicles
  • Restores proper coolant pressure and prevents overheating
  • Helps resolve coolant loss due to reservoir damage
  • Prevents air from entering the cooling system
  • Maintains engine temperature stability during operation

Installation Notes and Tips

When installing the Dorman 603-452 engine coolant reservoir, ensure the vehicle is cool to avoid injury from hot coolant. Use the existing mounting hardware or brackets from the original reservoir, as none are included with this part. Verify the spring loaded twist cap is securely tightened to maintain system pressure. Inspect hoses and connections for wear or damage during installation to ensure a leak-free fit.

Quality Assurance and Warranty Information

Dorman manufactures this engine coolant reservoir to meet or exceed OEM standards for fit, form, and function. The part number 603-452 undergoes quality checks to ensure durability and compatibility with Toyota Hiace cooling systems. Warranty coverage details can be obtained from the product packaging or Dorman’s official documentation.

BrandDorman
Part Number603-452
MaterialPlastic
ColorClear
Mounting Hardware IncludedNo
Mounting Hole Quantity1
Mounting Brackets IncludedNo
Cap TypeSpring loaded twist
PressurizedYes
Cap IncludedYes
Package Contents1 coolant reservoir; 1 cap

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019ToyotaHiace2.7LL4Front
2018ToyotaHiace2.7LL4Front
2017ToyotaHiace2.7LL4Front
2016ToyotaHiace2.7LL4Front
2015ToyotaHiace2.7LL4Front
2014ToyotaHiace2.7LL4Front
2013ToyotaHiace2.7LL4Front
2012ToyotaHiace2.7LL4Front
2011ToyotaHiace2.7LL4Front
2010ToyotaHiace2.7LL4Front
2009ToyotaHiace2.7LL4Front
2008ToyotaHiace2.7LL4Front
2007ToyotaHiace2.7LL4Front
2006ToyotaHiace2.7LL4Front

* 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:

164707512275121DAKG-75121FRT2031C

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