HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-442 Engine Coolant Reservoir - Front
Part #: 603-442

Dorman 603-442 Engine Coolant Reservoir - Front

Front
⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Sequoia and Tundra
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Reliable Engine Coolant Reservoir for Toyota Sequoia and Tundra

The Dorman 603-442 engine coolant reservoir is designed to maintain optimal coolant levels in your Toyota Sequoia or Tundra. Constructed from durable plastic with a black and white finish, this reservoir ensures consistent performance and longevity.

  • Durable plastic construction for long-lasting use
  • Includes flip top cap for easy access and secure sealing
  • Comes with mounting brackets and two mounting holes for secure installation
  • Non-pressurized design suitable for specific Toyota cooling systems
  • Package includes one coolant reservoir, one cap, and a fan shroud

Product Details and Specifications

The Dorman 603-442 engine coolant reservoir features a non-pressurized design tailored for Toyota Sequoia and Tundra models. Its black and white plastic body offers resistance to heat and corrosion, ensuring reliable coolant containment. The included flip top cap allows for convenient refilling and inspection without removing the entire cap assembly. With two mounting holes and included mounting brackets, installation is straightforward and secure. This reservoir is supplied with a fan shroud to support proper engine cooling system function.

Compatible Vehicles and Common Applications

This engine coolant reservoir is compatible with the following Toyota models:

  • Toyota Sequoia
  • Toyota Tundra

It is designed to address issues such as:

  • Coolant leaks from cracked or damaged reservoirs
  • Overheating caused by insufficient coolant levels
  • Damaged or missing reservoir caps leading to coolant evaporation
  • Loose or broken mounting brackets causing reservoir instability
  • Fan shroud damage affecting cooling efficiency

Installation Notes and Tips

When installing the Dorman 603-442 coolant reservoir, ensure the mounting brackets align with the two mounting holes for a secure fit. The flip top cap should be checked for proper sealing to prevent coolant loss. It is recommended to inspect the fan shroud for any damage and replace it if necessary to maintain optimal airflow. Always allow the engine to cool before removing the old reservoir to avoid injury.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for your Toyota Sequoia or Tundra. The 603-442 engine coolant reservoir undergoes rigorous quality control to ensure durability and fitment accuracy. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number603-442
MaterialPlastic
ColorBlack/white
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Mounting Brackets IncludedYes
Cap TypeFlip top
PressurizedNo
Cap IncludedYes
Package Contents1 coolant reservoir; 1 cap; fan shroud

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009ToyotaSequoia4.7LV8FrontShroud Assembly
2009ToyotaTundra4.7LV8FrontShroud Assembly
2008ToyotaSequoia4.7LV8FrontShroud Assembly
2008ToyotaTundra4.7LV8FrontShroud Assembly
2007ToyotaTundra4.7LV8FrontShroud Assembly

* 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:

167110F050DAKG-167115FRT2028C

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