HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-329 Engine Coolant Reservoir - Front
Part #: 603-329

Dorman 603-329 Engine Coolant Reservoir - Front

Front
⚙️ 9 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 603-329 engine coolant reservoir is designed specifically for Ford Mustang models, providing a reliable replacement for your vehicle's cooling system. Made from durable plastic with a clear finish, this reservoir allows for easy monitoring of coolant levels.

  • Material: Durable plastic construction
  • Capacity: 3.7 liters
  • Color: Clear for easy fluid level visibility
  • Dimensions: 8 inches length, 23.25 inches height
  • Shape: Irregular to fit specific engine bay contours
  • Mounting: Includes mounting brackets and one mounting hole
  • Cap: Flip top design, cap included
  • Non-pressurized reservoir

Detailed Product Description

The Dorman 603-329 engine coolant reservoir is engineered to meet the specifications required for Ford Mustang vehicles. Its clear plastic material allows drivers and mechanics to quickly assess coolant levels without removing the cap. The irregular shape is tailored to fit the engine compartment layout of the Mustang, ensuring proper installation and secure fitment. The included mounting brackets and single mounting hole facilitate straightforward attachment, while the flip top cap design provides convenient access for refilling and maintenance. This reservoir is non-pressurized, consistent with the original equipment design, and has a 3.7-liter capacity to accommodate the cooling system needs of the vehicle.

Common Applications and Problem Resolution

  • Replacement for cracked or leaking coolant reservoirs
  • Solves coolant overflow issues due to damaged tanks
  • Prevents engine overheating caused by insufficient coolant storage
  • Restores proper coolant level monitoring with clear reservoir design
  • Addresses mounting failures with included brackets for secure fit

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid injury from hot coolant. Remove the old reservoir carefully, disconnecting any hoses and mounting hardware. The Dorman 603-329 includes mounting brackets but does not come with additional mounting hardware, so retain original fasteners if possible. Align the irregular-shaped reservoir properly in the engine bay and secure it using the provided brackets and mounting hole. Attach the flip top cap securely to prevent leaks. After installation, refill the reservoir with the appropriate coolant and check for leaks during engine operation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 603-329 engine coolant reservoir undergoes quality inspections to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the supplier for exact warranty terms.

BrandDorman
Part Number603-329
Cap IncludedYes
Cap TypeFlip Top
Capacity3.7 L
ColorClear
Height23.25
Length8
MaterialPlastic
Mounting Brackets IncludedYes
Mounting Hardware IncludedNo
Mounting Hole Quantity1
Package Contents1 Reservoir; 1 Cap
PressurizedNo
ShapeIrregular

This part fits 9 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004FordMustang3.9LV6Front
2004FordMustang3.8LV6Front
2003FordMustang3.8LV6Front
2002FordMustang3.8LV6Front
2001FordMustang3.8LV6Front
2000FordMustang3.8LV6Front
1999FordMustang3.8LV6Front
1998FordMustang3.8LV6Front
1997FordMustang3.8LV6Front

* 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:

2R3Z8A080AC

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