This kit is a NO-SPLICE, NO-CUT harness designed to be a plug and play item for wiring any truck cap brake light and interior dome light into your truck. This wiring harness is Leer part #224030. This is made for the 2024 and newer GMC/Chevy 2500/3500 trucks with LED taillights. This is made by Leer and offered with their truck caps but can be used on any truck cap. We use these on ARE, LEER, Jeraco, Ranch, Century caps etc.
This comes with a T-connector style harness that will interface between the wiring harness and taillight on the driver's side light. From there it comes with a fused red wire to run up to the truck's battery to power the caps interior dome light. This kit comes prepackaged from Leer and will include the complete T-connector harness, fused red wire to power the interior lights from the battery, zip ties, heat shrink connector and end plug to secure to any LEER/Century cap with built in fuse box.
This harness can be used on other brands of truck cap but a different wiring connector to plug into the cap may be required. Please see the attached chart to ensure you order the correct part. The highlighted truck models are the proper fit for this wiring harness.