Will this pump fit directly into my existing washer reservoir?

Yes—this is an OEM-spec replacement. It mounts at factory connection points without modification. Confirm your pump assembly orientation before seating it fully.

Do I need to drain the reservoir before installing this pump?

Draining is not required, but many installers do it to avoid spills and get a cleaner connection. Either way works; just be ready for minor spillage if you leave fluid in the tank.

What if the pump doesn't spray after installation?

Check that all hose connections are seated firmly and the electrical connector is fully engaged. If spray is weak or absent after that, test washer fluid level and verify no hose kinks are blocking flow.