Do these bolt directly into my factory marker light holes?

Yes, these are a direct fit replacement. They mount into your existing marker light housing location with no modification needed.

Will I need to wire these myself, or do they plug into the factory connector?

Confirm your vehicle's factory connector type before ordering. Most direct-fit units use the OEM connector, but test-fit to verify compatibility with your specific wiring harness.

Do these come with bulbs or LEDs already installed?

These ship with the LED light bar pre-installed and ready to mount. No additional bulbs or wiring components are included.