HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-290 Engine Coolant Reservoir - Front
Part #: 603-290

Dorman 603-290 Engine Coolant Reservoir - Front

Front
⚙️ 4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mustang
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Overview of Dorman Engine Coolant Reservoir for Ford Mustang

The Dorman 603-290 engine coolant reservoir is designed specifically for Ford Mustang models, providing a reliable solution for your vehicle's cooling system. Made from durable plastic, this reservoir ensures efficient coolant storage and pressure management.

  • Material: High-quality plastic construction
  • Dimensions: 17 inches length, 8 inches height
  • Color: Black and clear for easy coolant level monitoring
  • Includes mounting brackets and a pressurized cap rated up to 16 psi
  • Capacity: 3 liters to accommodate cooling system needs
  • Mounting holes: 3 for secure installation
  • Cap included with the reservoir

Detailed Product Description

The Dorman 603-290 engine coolant reservoir is engineered to meet the specifications required by Ford Mustang vehicles. Its irregular shape is designed to fit precisely within the engine bay, optimizing space without compromising capacity. The black and clear plastic construction allows for quick visual checks of coolant levels, while the included pressurized cap maintains system pressure up to 16 psi, helping to prevent overheating and coolant loss. The reservoir comes with mounting brackets and three mounting holes to ensure a secure and stable fit during operation.

Common Applications and Problem Solving

  • Replaces cracked or leaking coolant reservoirs
  • Resolves coolant overflow and loss issues
  • Prevents engine overheating due to coolant system failure
  • Restores proper pressure regulation in the cooling system
  • Eliminates coolant contamination from damaged or missing caps

Installation Notes and Tips

Installation of the Dorman 603-290 reservoir requires removal of the old reservoir and careful alignment of the mounting holes with the vehicle’s mounting points. Use the included mounting brackets for a secure fit. Ensure the pressurized cap is properly seated to maintain system pressure. It is recommended to inspect hoses and clamps during installation and replace if necessary to avoid leaks.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 603-290 engine coolant reservoir includes a cap and mounting hardware for convenience. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.

BrandDorman
Part Number603-290
Cap IncludedYes
Cap Maximum Pressure Rating16
Cap TypeYes
Capacity3 L
ColorBlack and Clear
Height8
Length17
MaterialPlastic
Mounting Brackets IncludedYes
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Reservoir; 1 Cap
PressurizedYes
ShapeIrregular

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000FordMustang4.6LV8FrontStamped YR33 8A080-A
1999FordMustang4.6LV8Front
1998FordMustang4.6LV8Front
1997FordMustang4.6LV8Front

* 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:

9C3Z8101B

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