DV8 Offroad 40 Amp Wire Harness with DT Connector and Switch

The DV8 Offroad 40 Amp Wire Harness (UNWH-03) is a single-light wiring solution for auxiliary light bars and pod lights that use a 2-pin Deutsch (DT) connector. Built from 14-gauge copper wire with a 40-amp fuse and 60-amp relay, it delivers protected, consistent power without improvised splicing or undersized wiring. Available in quantities of one, two, three, or four harnesses to match the number of lights in a build.

Clean, Protected Power for One Light

The UNWH-03 pairs a 40-amp in-line fuse with a 60-amp relay, so the circuit is protected both at the source and at the load. The 14-gauge copper conductors handle the current a single light bar or pod light draws without voltage drop or heat buildup that thinner wire invites. A 1-foot power and ground lead with ring terminals connects directly to the battery or distribution block for a secure, corrosion-resistant termination.

Plug-and-Play Installation with a Dedicated Switch

The 10-foot lead terminates in a 2-pin male Deutsch connector that mates directly with DV8 Elite Series light bars and pod lights, eliminating adapter pigtails. The separate 8-foot lead ends in a round metal-housing switch sized for a standard dash or A-pillar hole, giving the driver direct control without a relay module wired in separately. Professional installation is recommended; drilling is required to mount the switch.

Multi-Harness Quantities for Larger Builds

The UNWH-03 is sold in single, pair, three-harness, and four-harness quantities, so a build with two or four individually switched lights can be kitted in one order. For setups that need to run multiple lights from a single switched circuit using the same DT connector type, DV8 recommends pairing this harness with the UNWH-01 and UNWH-02 for proper load distribution rather than daisy-chaining from one UNWH-03.

Features

• 14-Gauge Copper Wire: handles single-light current draw without heat buildup or voltage drop
• 40-Amp Fuse and 60-Amp Relay: dual circuit protection at both the source and the load
• 10-Foot Lead with 2-Pin Male Deutsch Connector: direct plug-in to DT-connector lights, no adapter needed
• 8-Foot Lead with Round Metal-Housing Switch: mounts in a standard dash or panel hole for driver-side control
• 1-Foot Power and Ground Lead: ring terminals and in-line fuse for a clean battery or bus-bar connection

Specifications

Who This Is For and Isn't

This harness suits any vehicle owner adding a single DT-connector auxiliary light (a light bar or pod light) who wants a fused, relay-protected circuit with a dedicated dash switch and clean ring-terminal battery connections rather than a bare wire tap.

The UNWH-03 is not designed to power more than one light from a single harness; running multiple lights on one connector type requires the UNWH-01 and UNWH-02 instead. It is also not compatible with lights that use a connector other than the 2-pin Deutsch (DT) type.

Common Questions

How many lights can one UNWH-03 harness power?

Each DV8 Offroad UNWH-03 wire harness is designed to power one light. Running multiple lights that share the same DT connector type requires pairing the UNWH-01 with the UNWH-02 for proper load distribution rather than adding a second light to a single UNWH-03.

Which DV8 lights does this harness connect to directly?

The UNWH-03 terminates in a 2-pin male Deutsch (DT) connector that mates directly with DV8 Elite Series light bars and pod lights, including the 13-inch and 20-inch Elite Series LED light bars and the 3-inch Elite Series LED and flush-mount pod lights in both standard and amber versions.

Does the switch require drilling to install?

Yes. The 8-foot switch lead on the DV8 Offroad UNWH-03 ends in a round metal-housing switch that mounts in a drilled hole in the dash, A-pillar, or panel. Professional installation is recommended, and the full harness install is estimated at approximately one hour.

What is included with each harness?

Each DV8 Offroad UNWH-03 includes a 10-foot lead with a 2-pin male Deutsch connector, an 8-foot lead with a round metal-housing switch, and a 1-foot power and ground lead with an in-line fuse and ring terminals. The 40-amp fuse and 60-amp relay are part of the harness assembly.

Is there a Proposition 65 warning for this product?

Yes. WARNING: This product can expose you to chemicals including lead and lead compounds, DEHP, and bisphenol A (BPA), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.