Demand authentic OEM GM parts for the exceptional quality and performance requirements of your vehicle. The recommended part 84390872 Reservoir Tank is also referred to as GM Coolant Reservoir. We distribute these components through all certified dealer networks operating across the United States. All products have a 12-month, 12,000-mile warranty. The performance of your vehicle requires original equipment manufacturer components for proper installation. This item fits the following: Buick Envision.
The GM part 84390872 Reservoir Tank has been engineered to be reliable and easy to fit. This GM Reservoir Tank is supported by a factory warranty, to get details about delivery and returns, refer to our Shipping Policy and Return Policy pages. The GM part 84390872 is a coolant reservoir designed in such a way that the engine cooling system is not leaked to the outside, and any air pockets are removed, which can cause rust, corrosion, or dangerous antifreeze spills. It is also designed to accommodate overflow tank and expansion tank configurations, as well as reinforced, topped, with an integrated pressure cap, depending on the GM vehicle configuration. Regular physical inspections on cracks, seepage and age related wear and tear due to the continuous heat cycling is recommended so that there will always be the same pressure and the long life of this vital component.
The ideal choice to make when wanting an assuring quality and a flawless performance is OEM parts. These items are checked closely in terms of quality and designed to fit perfectly into GM's specifications in terms of factory completion making it very easy to install the parts. We have a large stock of OEM GM components, which also come at highly competitive prices in the market. Just in case you need any new original GM parts please be assured that we would provide them to you at your doorstep within a short period of time. In addition to this, all our pieces are covered by the manufacturer's warranty.










