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.

Non-Pressurized Coolant Reservoir 603-078 Features:

• Fits 2003-2024 Chevrolet; 2003-2024 GMC
• Constructed from Plastic for lasting durability
• Direct replacement — this engine coolant reservoir matches the fit and function of the original part
• Ideal solution — engineered for a seamless installation
• Trustworthy design — backed by 100 years of automotive aftermarket experience