Does anyone have the part number...

[AshKat]

Does anyone have the part number or link for 2007 350 Mag MPI raw water pump housing?  Should I upgrade to brass or are there any other better than stock housings?

[billy2]

The stock part #is 46-862914T10m, I am not sure about brass housings.Billy

[Seabuz]

There is a stainless steel one out there. Never heard of a brass one.

[Ollie]

I am actually in the same situation and looking at one of these. All you do is replace a plate after wear. http://www.cpperformance.com/p-15774-stainless-steel-gen-7-sea-pump-for-mercury-350-496-and-502-mag.aspx

My buddy who has a 280 DA purchased one of these CP Perfomace SS pumps and says they're great.

[AshKat]

I ended up ordering a couple from a guy who sells reconditioned ones on eBay. I will have to send back the cores. I read some bad reviews on the stainless ones, but cost was really the determining factor. Here's the link to the eBay ones:
http://www.ebay.com/itm/Mercury-Raw-Water-Pump-46-8M0118067-8M0122655-Mercruiser-46-862914-T10-New-Style/142315410328?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160727114228%26meid%3D2f7d2cd02822421b8efb6bf482192e58%26pid%3D100290%26rk%3D2%26rkt%3D4%26mehot%3Dlo%26sd%3D142202496250&_trksid=p2060778.c100290.m3507

He has them with or without pulleys.

[Stroh]

Couple of different raw water pump configurations, here is link to help determine stock replacement:
http://www.mercruiserparts.com/bam/subassembly/31851/11681/320

Also check out Hardin Marine for aftermarket raw water pumps:
http://www.hardin-marine.com/p-15774-stainless-steel-gen-7-sea-pump-for-mercury-350-496-and-502-mag.aspx