HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-597 Engine Coolant Reservoir - Front
Part #: 603-597

Dorman 603-597 Engine Coolant Reservoir - Front

Front
⚙️ 9 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: Mercury and Ford, Cougar, Contour, and Mystique
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Overview of Dorman Engine Coolant Reservoir 603-597

The Dorman 603-597 engine coolant reservoir is designed for reliable cooling system performance in select Ford and Mercury vehicles. This white plastic reservoir includes a spring loaded twist cap and mounting brackets, ensuring a secure fit and proper coolant containment for models like the Ford Contour, Mercury Cougar, and Mystique.

  • Constructed from durable white plastic material
  • Includes spring loaded twist cap for pressurized coolant system
  • Comes with mounting brackets but no additional hardware
  • Features two mounting holes for secure installation
  • Compatible with Ford Contour, Mercury Cougar, and Mystique
  • Part number 603-597 for precise identification

Detailed Product Description

The Dorman 603-597 engine coolant reservoir is engineered to maintain proper coolant levels and pressure within the cooling system. Made from sturdy plastic, this reservoir withstands heat and pressure typical of engine operation. The included spring loaded twist cap is designed to maintain system pressure, which helps prevent overheating and coolant loss. With two mounting holes and included brackets, installation is straightforward on compatible Ford and Mercury vehicles. This reservoir is specifically designed for the Ford Contour, Mercury Cougar, and Mystique models, ensuring a proper fit and function.

Common Applications and Problem Resolution

  • Replacement for cracked or leaking coolant reservoirs
  • Solves coolant overflow or loss issues due to damaged tanks
  • Restores proper pressure in the cooling system with included cap
  • Prevents engine overheating caused by coolant system failure
  • Addresses mounting instability with included brackets

Installation Notes and Tips

  • Ensure vehicle compatibility with Ford Contour, Mercury Cougar, or Mystique before installation
  • Use the two mounting holes and included brackets for secure attachment
  • Do not reuse old mounting hardware if damaged; new hardware is not included
  • Check the spring loaded twist cap for proper sealing after installation
  • Follow vehicle manufacturer guidelines for coolant system maintenance

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-597 engine coolant reservoir undergoes quality checks to ensure durability and performance under normal operating conditions. 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 information.

BrandDorman
Part Number603-597
Cap IncludedYes
Cap TypeSpring Loaded Twist
ColorWhite
MaterialPlastic
Mounting Brackets IncludedYes
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Package Contents1 Coolant Reservoir; 1 Cap
PressurizedYes

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001MercuryCougar2.5LV6Front
2000FordContour2.5LV6Front
2000MercuryCougar2.5LV6Front
2000MercuryMystique2.5LV6Front
1999FordContour2.5LV6Front
1999MercuryCougar2.5LV6FrontFrom 4/98
1999MercuryMystique2.5LV6Front
1998FordContour2.5LV6FrontFrom 10/97
1998MercuryMystique2.5LV6FrontFrom 10/97

* 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:

F8RZ8A080FAFRT1522CSK603597

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