The Nissan Path

Washer pump motor died and the replacement from Nissan is the entire reservoir for the R51.
Up here, $218 CND. YMMV.

I wasn't quick to believe that they never sold the actual part by itself, so, dove into RockAuto, and they cross-referenced it to Nissan #28920-7S000 (Xterra, Pathfinder and Armada).

Verified that the Nissan Part# above matched the same part number on mine.

Actual # on unit:
Made in CZ
3030301 12V
MM/YY

Simple swap inside the passenger side well, three screws to access it.
I have to get into better habits of taking photos while I do stuff.

Might help those that will eventually need to replace it.

Added photos for reference.
Pump
Retaining Ring - O ring
Connector
Rubber seal that plugs into the tank.


Small ring needs to be lifted up, off a slot on the tank, and you just pull the washer pump out.

Wow so you were able to just find the pump?
When I had my R51 pump replaced it was with reservoir...
Pump does seem that great IMO since the squirt seems a bit light to me on that unit..

My reservoir leaked, so that's what I replaced along with the pump.