Feature●Horn Assembly Compatible with 2015-2020 Escalade , 2015-2020 Escalade ESV , 2014-2018 Silverado 1500 , 2019 Silverado 1500 LD , 2015-2020 Suburban , 2015-2020 Tahoe , 2014-2018 Sierra 1500 , 2019 Sierra 1500 Limited , 2015-2020 Yukon , 2015-2020 Yukon XL●Direct replacement - with mounting bracket, easy to install or replace●Each horn is tested to assure maximum performance. Available in high or low note horn.●Horn frequency : H : 495HZ , L: 405HZ●1 year warrantyDescription