Dorman OE Solutions Engine Coolant Reservoir for 2002-2009 Buick Chevrolet GMC Isuzu Oldsmobile Saab 603-126

Non-pressurized engine coolant reservoir for 2002 to 2009 Buick Chevrolet GMC Isuzu Oldsmobile and Saab models used to replace cracked or leaking factory overflow tanks.

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

Key Features

• Direct replacement for specific General Motors vehicle applications
• Constructed from durable materials resistant to heat and vibration
• Non-pressurized design matches original equipment specifications
• Engineered to restore proper coolant system capacity
• Validated through testing for dependable performance

Benefits

• Prevents coolant loss and potential engine overheating issues
• Eliminates the need for temporary fixes or sealants on cracked tanks
• Ensures a precise fit for faster and easier installation
• Restores factory-like reliability to the cooling system
• Reduces the risk of repeat repairs with robust construction
• Provides a cost-effective solution compared to dealer parts

Application

Ideal for owners of Buick, Chevrolet, GMC, Isuzu, Oldsmobile, or Saab vehicles experiencing coolant leaks, visible cracks, or fluid level inconsistencies in the original overflow tank.

Fitment Notes

• Compatible with select 2002-2009 Buick models
• Compatible with select 2002-2009 Chevrolet models
• Compatible with select 2002-2009 GMC models
• Compatible with select 2003-2008 Isuzu models
• Compatible with select 2002-2004 Oldsmobile models
• Compatible with select 2005-2009 Saab models
• Please verify specific vehicle fitment before purchase

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
• Focus on durability helps ensure a smoother installation and reliable results

What's in the Box

• 1 Engine Coolant Reservoir

Item Dimensions

• Length: 13.7 inches
• Width: 12.6 inches
• Height: 9.3 inches
• Weight: 2.6 lbs