Replacement 2019 M5 raw water pump part #?

[wdr]

Anyone happen to know the part # for a 2019 M5 raw water pump? The one I have sounds like it’s about to go out. I have already isolated the issue to the pump and not the valve train which was a major scare to say the least. Yes I could go get one from the dealer, but I am looking to save the drive if possible. I did an online search for the original Sherwood and for a Johnson if available, but came up empty. This is what is on the current Sherwood plate: P1505 / 18247

Thanks for the help. 
 

[Cole2001]

No warranty left? I would still give your dealer a call and see if they can at least get you a part number for you specific hull number. I believe there were a few variations as they ran into issues in the early years. 

[wdr]

The warranty expired earlier this month unfortunately and I kind of want to avoid the usual dealer inquisition as to “why do I think I need a new “X”, it could be something more significant, so it’s best to let us check it out” during the start of the season and @ $150 an hour, pass! Realistically I will probably have to call them, but that is my last resort.

[dalt1]

16 hours ago, wdr said:

The warranty expired earlier this month unfortunately and I kind of want to avoid the usual dealer inquisition as to “why do I think I need a new “X”, it could be something more significant, so it’s best to let us check it out” during the start of the season and @ $150 an hour, pass! Realistically I will probably have to call them, but that is my last resort.

I hear you there. Don't miss that at all. My new dealer made a house call for me this week. Loving the new dealer experience here!

[Woodski]

A google search shows this as a 1505, it does have a different second number on the plate:

https://marinepumpdirect.com/sherwood-pump-p1505-replaced-by-p1505-01-pump/

From Malibu Parts:  https://www.malibuparts.com/products/impeller-malibu-m-series

Does this one look like the one on your engine?  Best I can tell, it uses the same impeller as the typical crank mounted F6-9B pump found on most engines from Indmar, PCM etc.  The difference looks to be the way it mounts and what drives it.  If it is your pump, they don't exactly give them away and if you add some dealer markup, ouch.  Can you remove the pump  and determine where the problem is?  You could remove it, pull out the impeller and spin it to see if the bearings are faulty based on what your description seems to indicate.  I can't imagine a set of bearings / seals would be very expensive.  Good luck.

[wdr]

Looks to be the same pump. I pulled it and spun it up to probably 100 rpm to see if I could replicate the knock and it wouldn’t reproduce the knock. It wasn’t under load by the belt and pulley so that might be the difference. I also pulled the belt and ran the engine a second to isolate the noise. Definitely the pump! There is about a 1/4” rotational play in the pulley until the impeller engages so that might be an indicator. There is no discernible run out on the bearing or end to end play either. I am heading down to the dealer this morning to see what they say. I did find a rebuild kit, I believe… so I will try that cheaper option first. The dealership years back said they wouldn’t mess with the rebuild kits it was too time consuming vs a new pump. Understandable from a warranty work perspective it’s a 10 minute job max to swap the pump, not so much from an out of pocket perspective.

Thank you all for the help. I update this thread when I am finished.