Moen MO1255 1255 Cartridge, Pack of 1, Unfinished

My Moen side mount single handle pull down faucet is 4 1/2 years old. Lately the handle seemed loose and then it started dripping water from the handle even if the water was OFF. I researched what the problem could be and I determined I needed to replace the ceramic cartridge. I looked up my model and I needed a 1255 Moen cartridge. It arrived in 2 days thanks to Amazon! It's no fun using the laundry room sink for my kitchen sink!I am a 61 year old female and I completed the repair in 5 minutes! It is so easy! First turn off the water. The new cartridge comes with an allen wrench, new set screw and new cartridge and new plastic outer nut.Using the allen wrench remove the handle and discard the old set screw. Place the new set screw inside the handle but don't tighten it yet. Now unscrew the metal decorative cover cap. Now using pliers or a wrench (I used pliers) remove the old black plastic nut. Pull the cartridge out. Mine was in bad shape!I used a paper towel to clean out the debris from inside the faucet. Then I popped the new cartridge inside by lining up the grooves. It will only go in one way so rotate it around until the proper grooves line up and slide it in. Then hand thread the new plastic nut over the cartridge and tighten with pliers. When it felt snug I turned it 90 degrees more. Now replace the outer cover and hand tighten.To test for leaks I turned the water on a little bit and I put the handle on and used the handle to turn the faucet on. NO LEAKS! Then I turned the water OFF again and tightened the handle using the new set screw. I turned the water on and it works great now. I want to add that my cartridge was so bad it was leaking under my sink through the housing of the faucet! It was a slow drip leak and it must have been doing it for a long time. Fortunately no damage under the sink! So if your faucet handle gets loose and it isn’t the set screw - run and replace the cartridge so you won't have potential damage to your cabinet!Good luck. You can do it!

14 year old Meon faucet was leaking a lot. I replaced this cartridge and it is like new again.

My Via faucet developed a problem where the handle was harder to move and when you moved it there was a squeaky rubber on rubber noise. It didn't drip, but the only replaceable part is the 1255 cartridge. It took about 10 minutes to replace which included rounding up the tools and then putting them away! The cartridge can only go in one way and I used the new plastic nut that came with the new cartridge rather than the plastic nut that was used with the original cartridge per the instructions. The cartridge comes with the retaining nut, a small allen wrench to loosen the screw holding the handle onto the faucet body, and an extra screw should you drop the original down the drain! Very satisfied, the faucet works like new. By the way, Moen will provide these cartridges free of charge for the life, but I went ahead and ordered this one because Moen was weeks out for delivery. When theirs gets here I will have a back up!

Easy to install, seems to be typical these days to be replacing these cartridges on faucets that are only a few years old. Technology is supposed to make the faucets last longer but this is not the case in my experience. Moen faucet handle had become stiff and was only a few years old but here I am replacing parts. Hmm

Replaced existing valve that was clogged, with this one, and faucet works again.

Stopped my leak, not much else to say about it.

This spring, we noticed water starting to pool under the kitchen sink. Assuming it was a leaky garbage disposal, we replaced the unit (and cabinet bottom), only the find the water was still dripping.As it turns out, our Moen Renzo pull-out kitchen faucet (model CA87316SRS) needed a new cartridge, and the leak was running down the braided cord onto the pipes, making it it *seem* as though the leak was coming from somewhere under the sink.As it turns out, all it really took to fix was the MO1255 cartridge and 5-10 minutes to install it, and we haven't had any issues since. The new garbage disposal works well, too! 😅

I bought my condo 3 years ago, and had no idea what my Moen Model was when it started leaking! I called Moen and they told me exactly what I needed (a new cartridge), and the replacement was easy! All you'll need is a wrench and everything else is included in the box. Thank you for making it so easy!

It was a perfect replacement for my broken one. Easy to install and working perfectly.

My Moen kitchen faucet failed last night. I opened it, identified the cartridge and admired the ceramic valve body, also finding the damaged portion that explained the failure. With next day delivery I've got water back in my kitchen sink today! install was effortless, faucet is good as new. Happy I chose a Moen several years back. Hopefully they'll keep making this cartridge.

easy install. good quality

Our excellent Moen kitchen sink valve started leaking at the base of the cartridge. Moen honored their warranty by sending us a new cartridge, but it was taking a week to arrive, so we paid for this one to arrive at Amazon Prime speed while the Moen one was enroute.When it arrived and I took the old one apart to replace it, it became obvious that it was still in perfect shape, but just had worked loose!I tightened the old one and it's been working perfectly for several months now.I suppose I could/should have returned this one for a refund, since ONE spare should be plenty.I wish the online info had educated me about the possibility of the cartridge loosening, and the simple solution. :-(

This replaced a leaking faucet valve. The item arrived next day and was new, sealed in package. Installation is easy as it is notched and can only go one way.