Do these use factory mounting points or do I need to drill?

These mount at the factory fog light locations—no drilling or modification to the bumper. If your SUV came equipped with fogs from the factory, the holes already exist and ready to go.

Is the wiring harness long enough to reach the engine bay, or do I need extension wire?

The harness is designed to integrate with your existing electrical loom. Length and routing depend on your installation path—test-fit before committing to secure routing to avoid adding extensions you don't need.

What bulb type does this use?

Bulb type and specifications are not listed in this assembly's data. Check your vehicle's owner manual or contact support with your VIN to confirm the correct bulb fitment for your model year.