Dorman Engine Coolant Reservoir Pressurized for 2007 Cadillac CTS 603-343

Engine coolant reservoir for 2007 Cadillac CTS by Dorman - OE Solutions to replace the original pressurized reservoir.

Built to meet the manufacturer’s design intent for reliable service. This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part. Pressurized Coolant Reservoir Trustworthy design - backed by 100 years of automotive aftermarket experience.

Key Features

• Manufactured from quality materials for durability
• Withstands underhood heat and engine vibration
• Engineered to match the fit and function of the original part
• Pressurized design for reliable coolant flow
• Backed by 100 years of automotive aftermarket experience

Benefits

• Ensures reliable cooling system performance
• Provides durable protection against heat and vibration
• Exact fit allows easy installation without modification
• Long‑lasting design reduces risk of leaks or failures
• Maintains engine temperature for optimal operation

Application

This part is for owners of a 2007 Cadillac CTS needing a replacement coolant reservoir after wear or failure. Common use cases include routine maintenance, repair after coolant leaks, or upgrading to a pressurized system.

Fitment Notes

• 2007 Cadillac CTS

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

• 12.3in x 10.5in x 8.5in, 2.5lbs