| 2015-2020 GMC Yukon XL Trailer Brake Control - AC Delco GMC Yukon XL Trailer Brake Control. Brand: AC Delco. Fits Years: 2015, 2016, 2017, 2018, 2019, 2020, 15, 16, 17, 18, 19, 20. Trailer Brake Control -- New; LABELED 84109434, 22945024; INTEGRATED TRAILER BRAKE CONTROL (JL1), SINGLE SPEED ACTIVE TRANSFER... ... more 2015-2020 GMC Yukon XL Trailer Brake Control - AC Delco GMC Yukon XL Trailer Brake Control. Brand: AC Delco. Fits Years: 2015, 2016, 2017, 2018, 2019, 2020, 15, 16, 17, 18, 19, 20. Trailer Brake Control -- New; LABELED 84109434, 22945024; INTEGRATED TRAILER BRAKE CONTROL (JL1), SINGLE SPEED ACTIVE TRANSFER... Partsgeek.com | | $47.97 go to store |