HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-328 Engine Coolant Reservoir - Front
Part #: 603-328

Dorman 603-328 Engine Coolant Reservoir - Front

Front
⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Sequoia and Tundra
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Overview of Dorman Engine Coolant Reservoir for Toyota

The Dorman 603-328 engine coolant reservoir is designed specifically for Toyota Sequoia and Tundra models. This replacement reservoir is made from durable plastic and includes a flip-top cap and tubing to ensure proper coolant containment and flow.

  • Constructed from durable white plastic for corrosion resistance
  • Includes one coolant reservoir, one flip-top cap, and tubing
  • Features three mounting holes for secure installation
  • Cap included with flip-top design for easy access
  • Non-pressurized reservoir compatible with Toyota Sequoia and Tundra

Detailed Product Description

The Dorman 603-328 engine coolant reservoir is engineered to meet the specifications required for Toyota Sequoia and Tundra vehicles. Made from sturdy plastic, this white reservoir is designed to withstand the heat and pressure fluctuations typical in engine cooling systems. The included flip-top cap allows for convenient coolant level checks and refills without removing the entire cap assembly. With three mounting holes, the reservoir can be securely fastened in place, although mounting hardware and brackets are not included. This non-pressurized reservoir is supplied with tubing to facilitate proper coolant circulation within the cooling system.

Common Applications and Problem Resolution

  • Replacement for cracked or leaking coolant reservoirs
  • Solves coolant overflow or leakage issues
  • Prevents engine overheating caused by coolant loss
  • Restores proper coolant level monitoring
  • Addresses reservoir cap failure or damage

Installation Notes and Tips

When installing the Dorman 603-328 coolant reservoir on Toyota Sequoia or Tundra models, ensure the vehicle is cool to avoid injury from hot coolant. Use the existing mounting hardware or source compatible fasteners, as none are included. Verify the three mounting holes align with the vehicle’s mounting points. Connect the supplied tubing securely to prevent leaks. Inspect the flip-top cap for proper sealing after installation to maintain system integrity.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 603-328 engine coolant reservoir undergoes quality checks to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandDorman
Part Number603-328
Cap IncludedYes
Cap TypeFlip Top
ColorWhite
MaterialPlastic
Mounting Brackets IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Coolant Reservoir; 1 Cap; Tubing
PressurizedNo

This part fits 10 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2007ToyotaSequoia4.7LV8Front
2006ToyotaSequoia4.7LV8Front
2006ToyotaTundraCrew Cab Pickup4.7LV8Front
2005ToyotaSequoia4.7LV8Front
2005ToyotaTundraCrew Cab Pickup4.7LV8Front
2004ToyotaSequoia4.7LV8Front
2004ToyotaTundraCrew Cab Pickup4.7LV8Front
2003ToyotaSequoia4.7LV8Front
2002ToyotaSequoia4.7LV8Front
2001ToyotaSequoia4.7LV8Front

* 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:

164700F010DAKG-164700FRT1202CFRT2018C

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