Does this pump come with the hoses and connectors attached?

The pump ships as an assembly. You'll need to verify that your existing hose and electrical connectors match before installation — most Lexus IS models use compatible factory connections, but test-fit to confirm.

Will I need any tools or hardware beyond what's in the box?

The pump mounts at factory points, so you'll only need basic hand tools. Any fasteners or clips specific to your washer reservoir setup should already be in place on your vehicle.

What if the pump doesn't work after installation?

Check that the electrical connector is fully seated and the fluid lines are secure. If spray still doesn't work, the issue may be a clogged line or empty reservoir — not the pump itself. Most failures are connection or blockage, not the unit.