Will this bolt directly into my factory license plate housing?

Yes. It's designed to use existing factory mounting points without drilling or cutting. Install is straightforward with basic hand tools.

Do I need to run new wiring or can I splice into the factory harness?

Wiring configuration depends on your truck's connector type. Test fit the assembly before committing to any harness modifications — you may be able to use factory connectors directly.

How long will the LED last compared to the stock bulb?

LED units outlast incandescent by a significant margin and resist yellowing. Lifespan depends on driving hours and electrical conditions; refer to manufacturer specifications for exact ratings.