HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 603-097 Engine Coolant Reservoir - Front
Part #: 603-097

Dorman 603-097 Engine Coolant Reservoir - Front

Front
⚙️ 27 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Saturn and Pontiac, Sky, Solstice, and Ion
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Overview of Dorman Engine Coolant Reservoir 603-097

The Dorman 603-097 engine coolant reservoir is designed for reliable cooling system performance in select Pontiac and Saturn vehicles. This clear plastic reservoir includes a spring loaded twist cap rated for 15 psi, ensuring proper pressurization and coolant containment for your Pontiac Ion, Saturn Sky, or Saturn Solstice.

  • Material: Durable clear plastic for easy coolant level monitoring
  • Cap Type: Spring loaded twist cap included with 15 psi maximum pressure rating
  • Pressurized reservoir to maintain optimal cooling system pressure
  • Mounting: Features 2 mounting holes; mounting hardware and brackets not included
  • Package includes one coolant reservoir and one compatible cap

Detailed Product Description

The Dorman 603-097 engine coolant reservoir is engineered to meet the specifications required for proper cooling system function in Pontiac Ion, Saturn Sky, and Saturn Solstice models. Constructed from clear plastic, this reservoir allows for quick visual inspection of coolant levels without removal. The included spring loaded twist cap is designed to maintain system pressure up to 15 psi, which helps prevent coolant loss and overheating. With two mounting holes, the reservoir can be securely installed using existing hardware. Note that mounting brackets and hardware are not included with this part.

Compatible Vehicles and Applications

  • Compatible with Pontiac Ion models requiring a replacement coolant reservoir
  • Suitable for Saturn Sky vehicles needing a pressurized coolant reservoir
  • Fits Saturn Solstice models designed for this specific reservoir and cap assembly

Common Issues Addressed by This Coolant Reservoir

  • Coolant leaks due to cracked or damaged reservoir tanks
  • Loss of cooling system pressure causing engine overheating
  • Difficulty monitoring coolant levels with opaque or discolored reservoirs
  • Failure of old or faulty reservoir caps leading to coolant loss
  • Replacement of worn or brittle plastic reservoirs to maintain system integrity

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid injury from hot coolant. Drain the cooling system as needed to prevent spills. Use the existing mounting hardware to secure the reservoir via the two mounting holes. Verify the spring loaded twist cap is properly seated to maintain system pressure. Inspect hoses and connections for wear or damage during installation and replace if necessary.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 603-097 engine coolant reservoir undergoes quality checks to ensure durability and performance. This part includes the reservoir and cap, both designed for reliable operation in specified Pontiac and Saturn models. Warranty coverage details should be confirmed through the original purchase source.

BrandDorman
Part Number603-097
Cap IncludedYes
Cap Maximum Pressure Rating15
Cap TypeSpring Loaded Twist
ColorClear
MaterialPlastic
Mounting Brackets IncludedNo
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Package Contents1 Coolant Reservoir; 1 Cap
PressurizedYes

This part fits 27 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2010SaturnSky2.4LL4Front
2010SaturnSky2.0LL4Front
2009PontiacSolstice2.4LL4Front
2009PontiacSolstice2.0LL4Front
2009SaturnSky2.4LL4Front
2009SaturnSky2.0LL4Front
2008PontiacSolstice2.4LL4Front
2008PontiacSolstice2.0LL4Front
2008SaturnSky2.4LL4Front
2008SaturnSky2.0LL4Front
2007PontiacSolstice2.4LL4Front
2007PontiacSolstice2.0LL4Front
2007SaturnIon2.2LL4Front
2007SaturnIon2.4LL4Front
2007SaturnIon2.0LL4Front
2007SaturnSky2.4LL4Front
2007SaturnSky2.0LL4Front
2006PontiacSolstice2.4LL4Front
2006SaturnIon2.2LL4Front
2006SaturnIon2.4LL4Front
2006SaturnIon2.0LL4Front
2005SaturnIon2.2LL4Front
2005SaturnIon2.0LL4Front
2004SaturnIonFrontL4 134CID 2.2L
2004SaturnIon2.2LL4Front
2004SaturnIon2.0LL4Front
2003SaturnIon2.2LL4Front

* 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:

10368831FRT1208C

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