[Perfect Function]Replace the coolant radiator reservoir tank to prevent engine stalls caused by overheating and to maintain your engine running at the proper temperature under a range of circumstances. [Compatibility Reference]Fit for , Regal Sportback, Regal TourX, fit for XT5, , , fit for Acadia, Terrain. This coolant radiator reservoir tank is custom fit for your car. [Premium Material]Made of plastic materials, this car radiator coolant expansion tank replacement prevent rust, oxidation, fluid loss, and deformation, and that it 't come off after extended use, solid, and has a long service life. [Part Number]Part numbers are 23386455, GM3014176. Please check the part number to check whether this engine coolant recovery tank is fit for your car for a better purchase experience. [Easy To Install]Turn off the engine and let it cool down before removing the reservoir, the bolts, and the coolant hose from the radiator. Next, let any residual coolant drain back into the drain pan. Replace the replacement reservoir tank. This engine coolant recovery tank is easy to install. Fitment: Fit for 2017-2019 Fit for Regal Sportback 2018-2020 Fit for Regal TourX 2018-2020 Fit for XT5 2017-2019 Fit for 2018-2019 Fit for 2016-2018 Fit for Acadia 2017-2019 Fit for Terrain 2018-2019 Name:Expansion Tank Type:Auto Parts Material Type:ABS Part Number:23386455 84841961 603-861 Color:White Package Contents: 1 x Expansion Tank With Cap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.