Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

[buckhorn7]

Getting conflicting info on part numbers. My 01 B2 serial# is 0M104216. The inner race is wider on the 18-2100 bearing than on the bearing I just pulled out. Will that cause problems? Thanks

 

[thumpar]

Re: Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

It shows as correct. Mercruiser Gimbal Bearings - iboats

 

[achris]

Re: Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

Getting conflicting info on part numbers. My 01 B2 serial# is 0M104216. The inner race is wider on the 18-2100 bearing than on the bearing I just pulled out. Will that cause problems? Thanks

Which is why you will find a lot of people suggest using OEM parts.

How much wider is the inner race?

 

[Fun Times]

Re: Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

Your OEM part number would be 862540A3 which translates into sierra part number Part # 18-21005. Replaces OEM part #
MERCURY MARINE 30-862540A3 Gimbal Bearing for Mercruiser 30-562540A3 - Sierra 18-21005 - iboats

OEM #862540A3 supersedes into 879194A01 which translates into sierra part number 18-21006. These numbers are for the permalube bearings.

This service bulletin may help with making some decisions. Good luck.

http://ethesis.zois.gr/fileshare/ΤΕ...MERCURY - EPC 13.3/data/001/04/2009/EN_13.PDF

 

[wrench 3]

Re: Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

The 18-2100 bearing is for the older units. The 2013 Sierra catalog lists the 18-2005 for the bravo units.

 

[buckhorn7]

Re: Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

Thanks for the service bulletin, the bearing I took out is made in the USA, Linkbelt, greaseable and has a red dot with the .09 taken off the aft side of the inner race. It is probably the original bearing. Looks like that bearing is for X,XR,X2 drives with bigger U-joints. I wonder if I have the bigger U-joints. Thanks

 

[Fun Times]

Re: Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

and has a red dot with the .09 taken off the aft side of the inner race. It is probably the original bearing. Looks like that bearing is for X,XR,X2 drives with bigger U-joints. I wonder if I have the bigger U-joints. Thanks

You are correct, the new bearing was shaved down in 2000 to fit the bigger u-joints that you do not have on your drive/serial number.

The shaved bearing became standard in 2000 for all bravos whether or not you had the bigger u-joints or not.

Since you do not have the bigger u-joints on your standard bravo drive the 18-2100 will work just fine in your gimbal housing.

Now starting with serial number 0M111208 & Up (2004 +) on the standard and bravo X drives, there was a few slight changes made to the u-joint assembly due to Merc went with a different company that makes the u-joint assembly for them and it appears to be in the photo just a hair longer, along with they went from greasable to non greasable u joints. The u-joint assemblies are also different colors. Your color should be gray while the 04+ should be black in color. I personally would not chance running the old bigger bearing with the newer standard drives.

So for future reference, if your bravo drive is 0M111208 & Up (2004 +) you will be better off/safer to run the 18-21005 or 18-21006 sierra part number if buying from sierra marine available here on iboats. The host that has helped you confirm correct information.

http://www.boatfix.com/merc/Bullet/00/00_08.pdf

 

[buckhorn7]

Re: Will a Sierra 18-2100 gimbal bearing fit in a 01 B2?

Thanks for the great info on the bearings. I will go with the 18-21005.