[Dana]

Good day!
I am the proud owner of my second Mariah!! Had a 2000 222 Shabah and now have a mint z252 with only 204 hours, 7.4 merc, Bravo III. I had a serpentine belt give it up on my first time out and am getting the run around from a boat dealer on what belt the 7.4 w/ power steering , the power steering pulley is steel and approx 5" + or - a 1/4. tightener pulley is not metal. If anyone has a part owners manual with the part
# and diagram it would be great!!!
Great to be back with the z252.
Thanks
Dana

[Hudson River Steve]

I assume you have the 7.4 MPI. If so, you can look up the part number at a number of online parts sites. Here is one I like to use:
Genuine Mercury & Mercruiser parts. WATER PUMP AND FRONT COVER
I believe the part number you are looking for with the plastic power steering pulley is 57-861049Q.

[Dana]

thanks, but the power steering pulley in my boat steel. I looked the belt up that you mentioned and it is not the one I need, thanks again.

[Hudson River Steve]

If you have a steel power steering pump pulley then the correct belt part number is 57-865615Q06

[Dana]

Thanks, I have the belt and will get it on today!!

[Dana]

Yea!!!! That was the right one! THANKS