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 Hummer H3 AccessoriesSelect A Category Below
Towing
Hummer H3 Trailer Hitch
Hummer H3 Trailer Wiring
Hummer H3 Brake Controller
Hummer H3 Front Mount Hitch
Hummer H3 Base Plate for Tow Bar
Hummer H3 Vehicle Tow Bar Brake System
Hummer H3 Vehicle Tow Bar Wiring
Cargo Control
Hummer H3 Roof Rack
Hummer H3 Spare Tire Bike Racks
Performance Accessories
Hummer H3 Air Filter
Hummer H3 Exhaust
Hummer H3 Suspension Enhancement
Hummer H3 Performance Chip Tuners
Hummer H3 Vehicle Lights
Hummer H3 Tire Chains
Hummer H3 Fluid Filters
Hummer H3 Catalytic Converters
Hummer H3 Salt Spreader
Hummer H3 Vehicle Engine Heaters
Hummer H3 Radiator Fan
Hummer H3 Lift Assist
Vehicle Trim
Hummer H3 Floor Mats
Hummer H3 Nerf Bars - Running Boards
Hummer H3 Vehicle Covers
Hummer H3 Grille Guard
Hummer H3 Side Window Vents
Hummer H3 Mud Flaps
Hummer H3 Vehicle Seat Covers
Hummer H3 Windshield Wiper Blades
Hummer H3 Windshield Covers
Hummer H3 Vehicle Air Mattress
