Dorman 603-861 Pressurized Coolant Reservoir with Cap Compatible with Select Models

Key features

• Direct replacement - this engine coolant reservoir matches the fit and function of the original part
• Ideal solution - engineered for a seamless installation
• Durable construction - manufactured from quality materials to withstand underhood heat and vibration
• Trustworthy design - backed by 100 years of automotive aftermarket experience
• Please confirm fitment before ordering.

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. This part is compatible with the following vehicles. Before purchasing, please confirm fitment with your vehicle trim. [Buick Envision: 2021, 2022, 2023, 2024, 2025] - [Buick LaCrosse: 2017, 2018, 2019] - [Buick Regal Sportback: 2018, 2019, 2020] - [Buick Regal TourX: 2018, 2019, 2020] - [Cadillac XT4: 2019, 2020, 2021, 2022, 2023, 2024, 2025] - [Cadillac XT5: 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025] - [Cadillac XT6: 2020, 2021, 2022, 2023, 2024, 2025] - [Chevrolet Blazer: 2019, 2020, 2021, 2022, 2023, 2024, 2025] - [Chevrolet Colorado: 2023, 2024, 2025] - [Chevrolet Equinox: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025] - [Chevrolet Malibu: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025] - [GMC Acadia: 2017, 2018, 2019, 2020, 2021, 2022, 2023] - [GMC Canyon: 2023, 2024, 2025] - [GMC Terrain: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025]

Free shipping on orders $50+. 30-day hassle-free returns.