[Applicable model] 2014-2020 for GMC Sierra, Yukon; for Cadillac CT6 from 2016 to 2018, Escalade from 2015; 2014-2019 for Chevrolet Silverado, 2015-2020 for Chevrolet Suburban, Tahoe. Part Number: 86774933, 85585333.The bypass valve regulates the flow of coolant within the engine and cooling system based on temperature, thereby optimizing engine performance and preventing excessive cooling and overheating.Improve engine efficiency: By helping the engine reach its optimum temperature faster, it helps warm up faster during cold starts and prevents excessive cooling in extreme conditions, protecting mission components from potential damage.[High quality] The by-pass temperature control valve made of high quality aluminum alloy has corrosion resistance, wear resistance and good electric heating performance, so that the product can be used for a long time.[Efficiency] Heat exchange valves are an important addition to the mission cooling system, providing enhanced reliability and greater efficiency, reducing the risk of premature wear and failure. Name:Cooler Thermal Bypass ValvePart Number:86774933 13511136 85585333Part Number:86774933Other Part Number:8677-4933Model:CT6 Escalade Silverado Suburban Tahoe Sierra YukonFitment Type:Direct ReplacementFitment:For Cadillac For Chevrolet For GMC 2014 2015 2016 2017 2018 2019 2020Colour:SilverMaterial:Metal Package Contents:1 * Cooler hot bypass valve 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.