Will these work with my factory wiring harness?

Yes. These use OEM connectors and tap directly into your vehicle's stock fog light circuits with no rewiring needed.

Do I need to remove the bumper to install?

You'll need to access the mounting points from behind the bumper fascia. Most installs can be done by removing trim panels and unbolting the lights from the inside—no full bumper removal required, but check your service manual for exact access points on your specific model year.

Are the lenses sealed against moisture?

These are designed as direct OEM replacements, so they meet the same weatherproofing standards as factory units. That said, inspect seals during installation and ensure gaskets sit flush to avoid condensation buildup over time.