Dorman - OE Solutions Engine Coolant Reservoir Pressurized for 2017-2023 Buick Cadillac Chevrolet 603-385

Engine Coolant Reservoir for 2017-2023 Buick Cadillac Chevrolet to replace worn or failing factory reservoirs.

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.
• Pressurized design ensures proper coolant pressure.
• Backed by 100 years of automotive aftermarket experience.

Benefits

• Maintains reliable coolant pressure for optimal engine cooling.
• Reduces risk of overheating and related damage.
• Durable construction withstands harsh underhood conditions.
• Easy to install as a direct-fit replacement.

Application

This part is ideal for vehicle owners needing a reliable replacement after leaks or failure of the factory coolant reservoir.

Fitment Notes

• Buick 2017-2020
• Cadillac 2019-2020
• Chevrolet 2020-2023

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

• 8.3in x 8.1in x 7.6in, 1.6lbs