Does this switch come with the mounting bracket and fasteners?

The switch assembly is included. Mounting fasteners are typically factory hardware already present in your door panel cavity — no additional hardware needed for installation.

Will this work with my existing window regulator and motor?

Yes. This is a direct OEM replacement that interfaces with the factory electrical harness and motor setup. No compatibility issues if your regulator and motor are functional.

What if the switch doesn't seat properly in the panel?

Test-fit first. If the housing catches on panel trim, file or shim the mounting surface lightly. Returns accepted within 30 days if fitment can't be resolved — reach out if you hit snags during install.