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Moen Solutions

K15-4000 And O-Rings

100883 Spout O-Rings and Bearing Washers  

Tools Needed:

3/32" Allen Wrench


Large Pliers  of  Channel Locks

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Flathead Screwdriver


Removal of the Spout O-Rings

Always turn your water supplies off before disassembling your faucet. With the supplies turned off, move your faucet’s handle to the “on” position to relieve pressure.
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  1. Rotate the faucet handle in either direction until it stops.
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  2.  Insert the Allen wrench into the hole on the handle to unscrew the handle set screw. The screw does not need to be fully removed. Lift the handle off of the faucet an
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  3. Using your hands, grab the collar. Rotate this counter-clockwise.
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  4. Remove the collar from the faucet.
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  5. Remove the plastic ring on top of the spout. Then, using large pliers or Channel Locks, unscrew the retainer nut counter-clockwise. Place this away from the work area next to the collar.
    Acr12794456844736-5861238 copy.pngSpout_O-Rings_10.png
  6. Using your hands grab the spout and lift up to remove the item from the faucet body.
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  7. Locate the two rubber O-rings.
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  8. Using a screwdriver, gently pry each O-ring from their groove in the brass valve body then remove them from the faucet.
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Now you can install the new O-Rings!

**NOTE: The 100883 spout O-ring kit includes two thin, plastic rings along with the rubber O-rings. These plastic rings, called Bearing Washers, generally will not need to be replaced. In the rare situation where you find one of these plastic rings to be damaged or out of place, you may want to replace these. For this, please follow the steps in the “Bearing Washer Replacement” section at the end of this document before installing the spout O-rings.

Installation of the Spout O-Rings

  1. Place a new rubber O-ring onto the brass valve body and push down until fully seated in the lowest groove in the valve body. Once seated in the groove, make sure this O-ring is not twisted.
  2. Place a new rubber O-ring onto the brass valve body and push down until fully seated in the top groove in the valve body. Once seated in the groove, make sure this O-ring is not twisted.
  3. Using the supplied pouch of grease, apply a thin layer of grease to the outside of each rubber O-ring.
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  4. You may now reassemble the faucet by following the disassembly instructions starting at step 9 and working in reverse order.

**NOTE: After assembling the faucet, turn the faucet on and inspect the area under the handle to insure there is not any water seeping out. If water is seen leaking here, remove the handle and the collar and tighten the retaining nut another 1/8 of a turn.
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Bearing Washer Replacement

Use the following instructions only if the plastic rings need to be replaced

  1. Be sure to follow the “Removal of the Spout O-Rings” section to have the faucet disassembled and ready to replace the bearing washers. The upper bearing washer was removed in step 7 of that section and will be installed when reassembling the faucet using that same section and following the steps in reverse. The steps below will explain how to remove and install the lower bearing washer.
  2. Locate the plastic ring at the base of the faucet.
  3. Use a flathead screwdriver to pry the bearing washer out of the groove.
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  4. Place the new bearing washer onto the brass valve body. Be sure this is fully seated.
  5. Move to the “Installing the Spout O-Rings” section to install the new spout O-rings and upper bearing washer.
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You are all done!

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