Make installing your trailer wiring harness as easy as possible with a custom fit wiring harness. Trailer wiring from Draw-Tite, Curt, Pollak, Tow Ready, Bosal, and Hopkins eliminates or reduces the need to cut and splice wires. It also helps to protect your vehicle's sensitive electronics from mis-wired trailers.
Choose the year of your vehicle to the left to find a custom fit trailer wiring harness.
Wiring Adapter Fitguide
Trailer Wiring Manufacturers
Search For Custom Fit GMC Sierra AccessoriesSelect A Category Below
Towing
GMC Sierra Trailer Hitch
GMC Sierra Trailer Wiring
GMC Sierra Brake Controller
GMC Sierra Fifth Wheel Hitch
GMC Sierra Gooseneck Hitch
GMC Sierra Front Mount Hitch
GMC Sierra Towing Mirrors
GMC Sierra Base Plate for Tow Bar
GMC Sierra Vehicle Tow Bar Brake System
GMC Sierra Vehicle Tow Bar Wiring
GMC Sierra BOLT brand vehicle and hitch locks
GMC Sierra Blind Spot Detection
Cargo Control
GMC Sierra Roof Rack
GMC Sierra Tool Box
GMC Sierra Ladder Rack
GMC Sierra Tailgate
GMC Sierra Truck Bed Extender
GMC Sierra Trunk Bike Rack
GMC Sierra Vehicle Cargo Control
GMC Sierra Headache Rack
GMC Sierra Truck Bed Sliding Tray
GMC Sierra Camper Tie-Downs
GMC Sierra Truck Bed Bike Rack
GMC Sierra Spare Tire Bike Racks
Performance Accessories
GMC Sierra Cold Air Intake
GMC Sierra Air Filter
GMC Sierra Exhaust
GMC Sierra Suspension Enhancement
GMC Sierra Transmission Cooler
GMC Sierra Performance Chip Tuners
GMC Sierra Vehicle Lights
GMC Sierra Tire Chains
GMC Sierra Fluid Filters
GMC Sierra Vehicle Sway Bars
GMC Sierra Catalytic Converters
GMC Sierra Vehicle Snow Plows
GMC Sierra Salt Spreader
GMC Sierra Vehicle Engine Heaters
GMC Sierra Off Road Lights
GMC Sierra Radiator
GMC Sierra Radiator Fan
GMC Sierra Cabin Air Filter
GMC Sierra Battery
GMC Sierra Lift Assist
Vehicle Trim
GMC Sierra Floor Mats
GMC Sierra Tonneau Cover
GMC Sierra Nerf Bars - Running Boards
GMC Sierra Trim Kits
GMC Sierra Vehicle Covers
GMC Sierra Grille
GMC Sierra Grille Guard
GMC Sierra Bug Shield
GMC Sierra Side Window Vents
GMC Sierra Truck Bed Mat
GMC Sierra Bumpers
GMC Sierra Mud Flaps
GMC Sierra Lamp Guards
GMC Sierra Van Cargo Mat
GMC Sierra Truck Tailgate Lock
GMC Sierra Truck Bed Rail Caps
GMC Sierra Truck Bed Tailgate Assist
GMC Sierra Vehicle Tent
GMC Sierra Vehicle Seat Covers
GMC Sierra Vehicle Tow Hook Step
GMC Sierra Replacement Mirrors
GMC Sierra Windshield Wiper Blades
GMC Sierra Wheel Liners
GMC Sierra Wheel Well Guards
GMC Sierra Battery Box Relocation
GMC Sierra Windshield Covers
GMC Sierra Vehicle Air Mattress
GMC Sierra Wheel Cover
GMC Sierra Truck Bed Camera
Jeep Accessories
GMC Sierra Replacement Top
GMC Sierra Jeep Doors
GMC Sierra Jeep Seats
GMC Sierra Jeep Windows
GMC Sierra Fender Flares
GMC Sierra Jeep Spare Tire Carriers
GMC Sierra Roll Bar Cover
GMC Sierra Jeep Hardware
ATV and UTV
GMC Sierra ATV Hitch
GMC Sierra ATV Winch Mount
GMC Sierra Snow Plow
GMC Sierra UTV Tops
GMC Sierra ATV-UTV Seat Covers
GMC Sierra ATV-UTV Windshield
GMC Sierra ATV-UTV Toolbox
GMC Sierra UTV Tonneau Cover
RV and Fifth Wheel
GMC Sierra RV Vents
GMC Sierra RV Mattress
GMC Sierra RV and Camper Steps
GMC Sierra RV Tires and Wheels
GMC Sierra RV Covers
GMC Sierra RV Fireplace
GMC Sierra RV Furniture
GMC Sierra RV Weight Distribution
GMC Sierra RV Hubs and Drums
GMC Sierra RV Brakes
GMC Sierra RV Roof Membrane
GMC Sierra RV Bearing
GMC Sierra Fifth Wheel King Pin
GMC Sierra Trailer Jack
GMC Sierra Spare Tire Cover
GMC Sierra RV Camera
GMC Sierra RV Doors
GMC Sierra RV Propane
GMC Sierra RV Interior Lighting
GMC Sierra RV Exterior Lighting
GMC Sierra RV Electrical
GMC Sierra RV Power Inlets
GMC Sierra RV Power Cord
GMC Sierra RV Plug Adapters
GMC Sierra RV Transfer Switch
GMC Sierra RV Jack Pads
GMC Sierra RV Jumper
GMC Sierra RV Bike Racks
GMC Sierra RV Antenna and Radio
GMC Sierra RV Air Conditioner
