1、Fitment: Trailer brake harness is replacement for Freightliner SL 2004‑2022, replacement for Freightliner XC 2004‑2022, which is made according to the prototype of the car. 2、OE Number: Trailer brake controller wiring harness replace part number is 3027 P. Please make sure the OE number matches the part you are replacing. 3、Advantages: The brake control harness reduces possible shorts and crosswiring of the brake control, and the 32inch length provides flexibility in application. 4、Stable Performance: The plug is made of excellent pure copper with better conductivity. The shell is waterproof, wear resistant, flame retardant, cold resistant and extremely durable. 5、Thoughtful Detail: To keep the power flowing and ensure your connections remain well protected, the trailer brake controller harness comes with straps that help keep the wires tied to avoid breakage and resist abrasion.