Mercruiser 4.3 belt

[Devin2680]

Hey yell, this is my first post. I can find the correct belt for my boat. Boat is a 1997 vip vision 1886 with a 4.3 lx and alpha 1 gen + out drive. The boat has power steering with metal ps pully and standard cooling. The serial number for the boat is 0k028202. Thanks for your help

 

[alldodge]

Alpha drive
Power steering pump pulley is 4 3/4 inch diameter part number is 861758A1
Power steering pump pulley is 5 3/4 inch diameter part number is 861758Q

Bravo drive
Power steering pump pulley is 4 3/4 inch diameter part number is 861759A1
Power steering pump pulley is 5 3/4 inch diameter part number is 861759Q

 

[Fun Times]

Also just to be on the safe side, inspect your power steering pulley, http://www.boatfix.com/merc/bullet/00/00_03.PDF ..., https://www.perfprotech.com/blog/un...-belts-pulleys-and-kits-service-bulletin-98-1

 

[Devin2680]

I have the 5 3/4 pulley. Does anyone else know the interchange so I can get it from the parts store?

 

[Fun Times]

I have the 5 3/4 pulley. Does anyone else know the interchange so I can get it from the parts store?

I don't know of a direct replacement part number from an auto store but here's one trick you could try at a NAPA auto parts which offers some Sierra Marine parts or look up charts. Using Aftermarket Sierra Marine part number 18-15116 which is equivalent to your OEM Serpentine Belt 'Mercury part numbers 57-861758
http://www.napaonline.com/napa/en/search/?text=18-15116

S​ee if they can cross it over to a Gates, Goodyear or one of the other belt manufacture names for a lower cost possibly. You may need to walk your belt in to see if they can match it as as well. Or just order from iboats and have it sent to your door, http://www.iboats.com/BELT/dm/cart_id.086532246--session_id.543258128--view_id.1613776

Sierra Marine Serpentine Belt is equivalent to parts:

• 57861758Q Mercury Marine
• 57861758 Mercury Marine