Delta Faucet RP77739 Repair Kit

I bought this because the twenty-year-old bathroom faucet's seals had given out, so it was either try to fix it or replace the whole faucet with a new one. I had already disassembled the faucet, so I felt alright in trying a repair. The faucet kit arrived promptly, and the same evening I set about applying it. I thought perhaps I would need to look online for instructions, but I found an instruction guide was printed with the package label. I looked over the parts, and was momentarily wondering whether I had ordered the right kit, but the instructions mentioned that the part design had changed. They also specified removing the adjustment ring that had the job of keeping enough pressure on gaskets so that they did not leak. I replaced the two small rubber sleeved seals for the supplies and their springs, after doing the recommended cleaning of the ports with a soft cloth. The new ball's post went through the gasket assembly, and all that went into the faucet barrel. I removed the no-longer-needed adjustment ring from the barrel cover, then tightened down the barrel cover. I positioned the handle to midway and slowly turned on the supply lines in turn, verifying no leakage was happening where it shouldn't, then bringing the handle to the closed position and seeing that there was no flow there. That all took me about thirty minutes, and I was being slow and making sure I read the directions because of the parts change. Next time, I think a changeover would take me maybe twenty minutes from starting disassembly to putting the decorative handle cover back on. The newly repaired faucet handle moves more freely, yet does not have any leakage. This is one time where the newly re-engineered solution succeeds brilliantly. It is easier to put together, has fewer adjustments that have to happen, and works better than the original ever did. Congratulations to the product designers.

Fit perfectly. Bought an OEM kit for a 26 year old Delta crystal ball bath faucet that was supposed to fit. It kinda did but handle very stiff and difficult to operate. This one fit perfectly!

Ordered this kit to rebuild a single knob bathroom faucet in our home that was built in 1976 with original plumbing hardware. Installation was easy as can be and I also used some waterproof plumber's grease when I reassembled. The faucet works wonderfully-- so silky and smooth now. I loved it so much I decided to rebuild our shower faucet as well but got impatient and ran to Lowes to see if they had this kit. They did not have the OEM Delta kit and I bought the aftermarket brand kit they carried that was similar with the same replacement ball and o-rings. It is NOT the same. I rebuilt our shower with the aftermarket kit and it leaks unless you cinch the top ring on very tightly, which doesn't allow free and easy movement of the knob. Ended up ordering another one of these kits to rebuild that shower valve with. The aftermarket kit was about half the price of this one, but it's about 1/4 of the quality. Highly recommend this Delta kit!

This kit worked. Not an exact match but it seems not no longer leak. The new spring washer parts looked a little smaller, cheaper, but still it works.

Skip the OEM parts and buy the Delta parts. Yes, they cost more, but the Delta parts renewed my 35yr old shower faucet as good as new. Faucet is a much smoother operation and easy to adjust temperature. The same with the diverter valve. I used the OEM parts before but never again.

I could probably have gotten away with just replacing the washers and springs, but once you have the whole thing torn apart, you might as well replace everything, right? There are some really good videos on YouTube about how to do this. We did have some trouble getting the dome nut off. At first, we used a pipe wrench as recommended in the comments section of the video we watched. Clearly the nut was not coming lose and the entire valve was beginning to twist in the wall. This can lead to catastrophic porblems. We switched to a chanel lock and were able to get it lose and proceed with the repair. My suggestion, soak the entire nut area of your old valve repeatedly for days in advance with some sort of "Bolt Off" lubricant. Before you try to unscrew it, rap on the dome nut all the way around. I don't mean tap lightly nor do I mean for you to beat on it. But you need to knock it pretty good to loosen those threads. Also, get some silicone paste and slather all the new parts up good before you put it back together. Doing this yourself will save you hundreds over what a plumber would charge. Good luck!

This really saved the day, as I wasn't sure what parts I needed and couldn't find anything like that at either of the two big box hardware stores in town. It included all the parts for the older version of the valve I had, plus what I needed to upgrade the valve to the newer version--along with instructions to show exactly how to dismantle and reassemble the device. To make it easier next time for me (or for the next owner of the house) in making a repair, I hid a tag on the valve with this repair kit number where it will be discovered when the beauty trim would be removed to disclose the plumbing for potential repairs.

I think this kit is great but I had to return it. When I received it I noticed that one piece was different, a round plastic piece with a rectangular slot opening where my original had a triangle opening. I ended up with the RP77738 kit for my kitchen faucet. I was able to return the incorrect kit because I did not even have to open the package to see the discrepancy so everything worked out good in the end.

Did just what I needed. Stopped an old leaky Delta faucet from dripping without needing to do any major work or replace the whole thing. Used on a single knob bath/shower diverter faucet and the job was done in 10m.

It works.

Everything you need is in the package, save for the silicon grease (to be applied onto springs, gaskets and ball bearing).

fits well, and works, no more leaking