Dorman OE Solutions Engine Coolant Reservoir for 2003-2005 Chevrolet Vectra and 2003-2011 Saab 9-3 603-372

Pressurized coolant reservoir for 2003-2005 Chevrolet Vectra and 2003-2011 Saab 9-3 used to replace cracked or leaking factory overflow tanks.

Built to meet the manufacturer's design intent for reliable service, this unit is engineered from quality materials to withstand underhood heat and engine vibration while matching the original part's fit and function.

Key Features

• Direct replacement for specific Chevrolet Vectra and Saab 9-3 model years
• Constructed from durable materials designed to resist thermal stress
• Engineered to match original equipment form and function
• Validated through testing for dependable performance
• Includes one complete pressurized coolant reservoir assembly

Benefits

• Restores proper coolant capacity and system pressure
• Prevents overheating caused by cracked or failing storage tanks
• Ensures a precise fit for smoother installation without modification
• Reduces the risk of repeat repairs with robust construction
• Helps maintain optimal engine operating temperature

Application

Ideal for owners of Chevrolet Vectra and Saab 9-3 vehicles experiencing coolant leaks, visible cracks in the old tank, or low coolant warnings due to reservoir failure.

Fitment Notes

• Compatible with 2003-2005 Chevrolet Vectra
• Compatible with 2003-2011 Saab 9-3 and 9-3X models
• Replaces part numbers including Saab 9202799 and 32021931

Why Choose Dorman - OE Solutions?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function
• Backed by over 100 years of automotive aftermarket experience
• Built with quality materials to stand up to daily driving demands

What's in the Box

• 1 PC Engine Coolant Reservoir

Item Dimensions

• 8.5in x 6.7in x 7.0in
• Weight: 1.3lbs