Dorman - OE Solutions Engine Coolant Reservoir Pressurized with OEM Design for 2006-2010 Chevrolet Cobalt, Pontiac G4, G5, Pursuit 603-059

Engine Coolant Reservoir for 2006-2010 Chevrolet Cobalt, Pontiac G4, G5, Pursuit that replaces the factory pressurized reservoir to maintain coolant pressure and engine performance.

Built to meet the manufacturer’s design intent for reliable service.

Key Features

• Pressurized design matches OEM specifications
• Engine Coolant Reservoir engineered for heat and vibration resistance
• Quality materials ensure long‑term durability
• Direct-fit replacement matching original part function

Benefits

• Maintains proper coolant pressure for optimal engine cooling
• Reduces risk of overheating and related damage
• Easy to install with no modification required
• Provides reliable performance over time

Application

Ideal for owners of Chevrolet Cobalt (2010-05), Pontiac G4 (2006-05), Pontiac G5 (2010-07), and Pontiac Pursuit (2006-05) needing a replacement coolant reservoir.

Fitment Notes

• Chevrolet Cobalt 2010-05
• Pontiac G4 2006-05
• Pontiac G5 2010-07
• Pontiac Pursuit 2006-05

Why Choose Dorman - OE Solutions?

• Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they’re made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.

What’s in the Box

• 1 PC

Item Dimensions

• 9.9in x 7.5in x 7.1in, 1.7lbs