HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-432 Engine Coolant Reservoir - Front
Part #: 603-432

Dorman 603-432 Engine Coolant Reservoir - Front

Front
⚙️ 12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Scion and Toyota, xA, xB, and Echo
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Reliable Engine Coolant Reservoir for Toyota and Scion Models

The Dorman 603-432 engine coolant reservoir is designed to provide a durable and efficient solution for maintaining proper coolant levels in your vehicle. Specifically compatible with Toyota Echo, xA, and xB models as well as Scion vehicles, this reservoir ensures reliable performance and fitment.

  • Constructed from durable brown plastic for long-lasting use
  • Includes mounting brackets and a flip-top cap for easy access
  • Features three mounting holes for secure installation
  • Cap included with a flip-top design for convenient coolant refills
  • Non-pressurized reservoir designed to meet OEM specifications
  • Package contains one coolant reservoir, one cap, and a fan shroud

Durable Design and Functional Features

The Dorman 603-432 engine coolant reservoir is made from sturdy plastic material in a brown finish, providing resistance to heat and corrosion commonly found in engine compartments. The included mounting brackets and three mounting holes allow for a secure and precise fit in compatible Toyota Echo, xA, and xB models, as well as Scion vehicles. The flip-top cap design simplifies coolant level checks and refills without the need to remove the entire cap assembly. This reservoir is non-pressurized, matching the original equipment specifications to maintain proper coolant system function.

Compatible Vehicles and Applications

This engine coolant reservoir is compatible with the following makes and models:

  • Toyota Echo
  • Toyota xA
  • Toyota xB
  • Scion models corresponding to these platforms

It is designed to replace worn or damaged coolant reservoirs that may cause coolant leaks, overheating, or improper coolant level readings.

Common Issues Addressed by This Coolant Reservoir

  • Coolant leaks due to cracked or damaged reservoir tanks
  • Inaccurate coolant level readings from faulty or missing caps
  • Overheating caused by insufficient coolant circulation
  • Loose or broken mounting points leading to reservoir movement
  • Degraded plastic material from heat exposure over time

Installation Notes and Tips

Installation of the Dorman 603-432 engine coolant reservoir requires basic mechanical skills. Ensure the engine is cool before beginning installation to avoid injury. Use the included mounting brackets and three mounting holes to secure the reservoir firmly in place. The flip-top cap should be checked for proper sealing after installation to prevent leaks. No additional mounting hardware is included, so retain original fasteners or acquire compatible replacements as needed.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-432 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 terms.

BrandDorman
Part Number603-432
Cap IncludedYes
Cap TypeFlip Top
ColorBrown
MaterialPlastic
Mounting Brackets IncludedYes
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Coolant Reservoir; 1 Cap; Fan Shroud
PressurizedNo

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006ScionxA1.5LL4FrontShroud Assembly; To 12/05
2006ScionxB1.5LL4FrontShroud Assembly; To 12/05
2005ScionxA1.5LL4FrontShroud Assembly
2005ScionxB1.5LL4FrontShroud Assembly
2005ToyotaEcho1.5LL4FrontShroud Assembly
2004ScionxA1.5LL4FrontShroud Assembly
2004ScionxB1.5LL4FrontShroud Assembly
2004ToyotaEcho1.5LL4FrontShroud Assembly
2003ToyotaEcho1.5LL4FrontShroud Assembly
2002ToyotaEcho1.5LL4FrontShroud Assembly
2001ToyotaEcho1.5LL4FrontShroud Assembly
2000ToyotaEcho1.5LL4FrontShroud 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:

1671121030FRT2008CFRT2012CSK603432

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