Does this pump work with my existing washer fluid hoses and nozzles?

Yes. This assembly is designed to mate directly with factory hose connections on your Matrix. You're just swapping the pump unit itself—no rewiring of fluid lines needed.

Is the rear wiper motor pre-assembled or does it need installation?

The motor comes integrated into the assembly, but you'll need to mount it to the rear hatch arm according to your vehicle's layout. Consult your service manual for bracket and fastening points.

Will this assembly work with my existing washer fluid reservoir?

This pump is built to connect to standard Matrix washer reservoirs. If your reservoir is damaged or missing, you'll need to source that separately—this assembly does not include the reservoir itself.