This is a Genuine Meyer OE 07334 Adapter Harness Kit
This adapter kit is for the lights on a 2007+ GMC Yukon without a Snowplow Prep Package. This will work for vehicles with either HB3/HB11 lights or H13 lights. It includes the "A" Port Adapter Wiring Harness 07417 and the "B" Port Adapter Wiring Harness 07349.
If your Yukon has a Snowplow Prep Package, you will need adapter kit 07343, Click Part Number for Info