B21 Kubota Brakes

Clarkschapel · May 5, 2015

First time to use this, hope someone can help me with this question.
the brakes are not holding on my b21 kubota tractor and I can find part numbers
but can anyone tell me where i can order the disk brakes for the left and right hand side?
I know i can go to the dealer but looking to see if any after market parts like this are available.
Also are any videos on doing a brake replacement available or do i need to order a shop manual?

Thanks for your help Clarkschapel

troutsqueezer · May 6, 2015

The brakes on the B21 do not usually wear out. The most common problems are with linkage on the pedals or low transmission fluid. If the brakes do need to be serviced the tractor needs to be cracked. That means taking off the canopy, FEL, ROPs, rear wheels, fenders and then splitting the tractor. Something you don't want to do. The brakes are encased in the rear axle case where they are immersed in transmission oil, hence the term "wet disc brakes".

On my B21 I have to push the pedals down then push the holding lever down, then do it again. The second time will keep the tractor from moving.

David_Kb7uns · May 6, 2015

Why would you need to split the tractor?

David Kb7uns

troutsqueezer · May 7, 2015

David_Kb7uns said:
Why would you need to split the tractor?

David Kb7uns

The only answer I can give you is because that's what my B21 service manual states. Maybe there is a shortcut, never know for sure until you get your hands dirty. Service manuals do have a tendency to be right, however.