<font color="blue">I have the 4690B hoe does this mean I already have the reinforced top link?? </font>
The heavy duty top link bracket is a requirement for the backhoe. If you dealer did it right, you have it.
I don't have a part number...but if you look at the bracket, it is held on with six or 8 bolts...I could take a picture of mine and post it if it would help...