The TAG Direct Fit Wiring Harness is set up for MERCEDES-BENZ Sprinter vans built from 2018, so you can hook a towbar into factory lights without chopping into random wires under the floor. The kit is aimed at day-to-day towing jobs like box trailers and work gear where a standard 12 V lighting feed does the job. You get a loom length matched to the rear of a long-body van so there is enough reach without big messy coils.

The harness uses automotive copper cable sized for typical trailer light loads on a 12 V Sprinter, and the insulation is built to handle hot floor cavities and dusty roads. A compact control box mounts near factory connection points to keep the wiring tidy and serviceable. The socket housing is shaped for common towbar plates and sits close to the hitch so plugs do not drag. For a Sprinter owner wanting a smart buy, this kit keeps the wiring factory-style.

• TAG direct fit vehicle specific wiring harness
• Suits MERCEDES-BENZ Sprinter from 02/2018-on
• Also suits additional Sprinter variants from 06/2018-on
• Integrates towbar trailer lighting with factory electrics
• Includes vehicle specific wiring loom and control module
• Includes trailer socket with mounting housing
• Printed fitting instructions supplied in the kit
• Harness configuration suited to standard 12 V lighting loads
• Helps keep wiring tidy behind rear trim panels
• Ideal for towing setups on work and touring Sprinter vans

Q: Does this wiring harness require cutting factory wires?

No, this harness is vehicle specific and is intended to use dedicated connection points on the Sprinter. That keeps the original loom intact and makes future fault finding simpler. It also reduces the risk of poor joints hidden under trim. Auto electricians can usually remove the kit later without leaving stray cuts in the OEM wiring.

Q: Can this kit be used on Sprinter models built before 2018?

No, this harness is specified for MERCEDES-BENZ Sprinter models from 02/2018 and 06/2018 onward. Earlier vans often use different connectors and wiring layouts. Using the wrong loom can lead to lighting faults or warning messages. Always match the harness to the build date on the compliance plate.

Q: Is this harness suitable for heavy trailer loads like car carriers?

This harness is intended to power standard 12 V trailer lighting circuits rather than high-draw accessories. Heavy trailers with extra marker lights may need load checks by an auto electrician. Any additional power-hungry gear should usually run from separate fused feeds. Keeping lighting and accessory circuits split helps protect the vehicle loom.

Q: Who should install this towbar wiring kit?

A qualified auto electrician or towbar specialist should install this kit. Modern vans like the Sprinter use sensitive electronics that can be affected by incorrect wiring. A professional has the tools to test circuit loads and confirm correct operation. Proper installation also helps maintain warranty and long-term reliability.

• Direct fit wiring harness for MERCEDES-BENZ Sprinter built from 02/2018 on
• Suits additional MERCEDES-BENZ Sprinter variants built from 06/2018 on
• Vehicle specific loom interfaces with factory electrics for towing functions
• Intended for towbar wiring setups on compatible Sprinter vans
• Professional installation is recommended for correct integration with vehicle systems