RIGID Industries H13 to H4 Headlight Adapter

If you're running a Truck-Lite headlight kit from RIGID Industries and hitting a plug mismatch, this H13 to H4 adapter is the fix. It bridges the gap between an H13 vehicle harness connector and an H4 headlight plug — no splicing, no rewiring, no fabricating custom pigtails.

We stock this adapter specifically because connector incompatibility is one of the most common friction points when swapping to an aftermarket lighting setup. RIGID built this to work with their Truck-Lite headlight kits, so you're getting a plug-and-play solution that's matched to the hardware you're already using — not a generic adapter sourced from a parts bin.

The job is straightforward: your existing H13 harness connects to one end, your H4 headlight plugs into the other. That's the conversion. No guessing at wire gauges or pin configurations.

What we like here is the simplicity. There's one spec that matters — H13 input, H4 output — and this adapter does exactly that. If your lighting kit and harness aren't speaking the same language, this is the part that makes them compatible. Grab it before you're deep into a headlight install with no clean way to terminate the connection.