Fill Valve Seal For Mansfield

This seal fits the Mansfield blue cap, white cap, yellow cap, and black cap new style pilot fill valves. This is the seal that would cause leaking out of the cap. It can also cause a whining, or groaning sound. To replace this part you will need to pop the cap of the fill valve off by pushing up on it with both thumbs. Once the cap is removed you will need to disconnect the black plastic arm from the threaded arm of the float. The next step is to turn the black plastic arm at the top of the fill valve clockwise. You should hear a click, and then you should be able to pull the grey piece in the center of the cap of the valve out. The seal will be located on the underside of this grey piece. 

Compatible Tank Models For This Part:

• 125
• 160
• 161
• 165
• 170
• 171
• 175
• 180
• 181
• 190
• 386
• 387
• 377
• 376
• 166