Dorman OE Solutions Engine Coolant Reservoir Non-Pressurized for 2003-2005 Buick Century Regal Chevrolet Impala Monte Carlo 603-033

Engine coolant reservoir for 2003-2005 Buick Century, 2004-01 Buick Regal, 2003-00 Chevrolet Impala and Monte Carlo that replaces the factory part.

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

Key Features

• Manufactured from quality materials to withstand underhood heat and engine vibration.
• Engineered to match the fit and function of the original part.
• Non-pressurized design.
• Trustworthy design backed by 100 years of automotive aftermarket experience.

Benefits

• Reliable service with durable construction.
• Easy to install as a direct-fit replacement.
• Resists heat and vibration for long-term performance.
• Reduces risk of coolant leaks and overheating.

Application

This part is ideal for mechanics and DIY owners replacing the coolant reservoir on Buick Century, Buick Regal, Chevrolet Impala, and Monte Carlo models.

Fitment Notes

• 2003-2005 Buick Century
• 2004-01 Buick Regal
• 2003-00 Chevrolet Impala
• 2003-00 Chevrolet Monte Carlo

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

• 17.8in x 4.9in x 17.2in, 3.0lbs