HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-320 Engine Coolant Reservoir - Front
Part #: 603-320

Dorman 603-320 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: Honda, S2000
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Overview of the Dorman Engine Coolant Reservoir for Honda S2000

The Dorman 603-320 engine coolant reservoir is designed specifically for Honda S2000 models, providing a reliable replacement part to maintain your vehicle's cooling system. Constructed from durable plastic, this white coolant reservoir includes essential mounting brackets and a cap to ensure proper installation and function.

  • Material: Durable plastic construction for long-lasting use
  • Color: White reservoir for easy fluid level monitoring
  • Includes mounting brackets for secure installation
  • Cap included with the reservoir for a complete assembly
  • One mounting hole for precise fitment
  • Non-pressurized design compatible with Honda S2000 cooling systems

Detailed Product Description

The Dorman 603-320 engine coolant reservoir is engineered to meet the specifications required for the Honda S2000. Its plastic construction offers resistance to corrosion and heat, ensuring consistent performance under normal operating conditions. The white color allows for quick visual checks of coolant levels without removing the cap. This reservoir comes with mounting brackets included, facilitating a secure and proper fit using the single mounting hole designed for this application. The included cap is designed to seal the reservoir effectively, although the reservoir itself is non-pressurized, matching the original equipment design for the Honda S2000.

Common Applications and Issues Addressed

  • Replacement of cracked or leaking coolant reservoirs
  • Resolving coolant overflow or loss due to damaged tanks
  • Addressing coolant contamination from deteriorated plastic reservoirs
  • Fixing improper coolant level readings caused by faded or discolored tanks
  • Restoring proper coolant system function after overheating incidents

Installation Notes and Tips

When installing the Dorman 603-320 coolant reservoir on your Honda S2000, ensure the mounting brackets align with the factory mounting points. Use the single mounting hole to secure the reservoir firmly. Verify that the included cap is properly seated to prevent coolant leakage. It is recommended to inspect hoses and clamps connected to the reservoir during installation to ensure overall system integrity.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-320 engine coolant reservoir undergoes quality checks to ensure durability and compatibility with Honda S2000 vehicles. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.

BrandDorman
Part Number603-320
Cap IncludedYes
Cap TypeYes
ColorWhite
MaterialPlastic
Mounting Brackets IncludedYes
Mounting Hardware IncludedNo
Mounting Hole Quantity1
Package Contents1 Coolant Reservoir; 1 Cap
PressurizedNo

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009HondaS20002.2LL4Front
2008HondaS20002.2LL4Front
2007HondaS20002.2LL4Front
2006HondaS20002.2LL4Front
2005HondaS20002.2LL4Front
2004HondaS20002.2LL4Front
2003HondaS20002.0LL4Front
2002HondaS20002.0LL4Front
2001HondaS20002.0LL4Front
2000HondaS20002.0LL4Front

* 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:

19101PCX000

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