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🛁 Upgrade your shower game with KOHLER’s precision-engineered mixer cap!
The KOHLER Genuine Part GP77759 Mixer Cap is a precision-engineered replacement component designed for 1/2" pressure balance shower valves. It ensures smooth handle rotation, integrates a temperature limit stop for safe water control, and fits seamlessly with KOHLER Rite-Temp valves and trim. Crafted from durable materials and backed by KOHLER’s warranty, this mixer cap protects your investment and restores optimal shower performance with easy installation.










| ASIN | B001GZU1PW |
| Best Sellers Rank | #25,465 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #64 in Bathtub & Shower Trim Systems #908 in Pumps & Plumbing Equipment |
| Brand | Kohler |
| Brand Name | Kohler |
| Connector Type | Cap |
| Customer Reviews | 4.5 out of 5 stars 1,166 Reviews |
| Exterior Finish | painted |
| Global Trade Identification Number | 00650531630650 |
| Included Components | Plumbing Fixtures;Kitchen Faucets and Accessories;faucet-aerators-and-adapters |
| Inlet Connection Size | 0.5 inches |
| Inlet Connection Type | Female Iron Pipe |
| Item Dimensions | 3.5 x 2.5 x 4 inches |
| Item Type Name | MIXER CAP FOR PRESSURE BALANCE 1/2" SHOWER VALVE |
| Item Weight | 5.6 ounces |
| Item dimensions L x W x H | 3.5 x 2.5 x 4 inches |
| Manufacturer | Kohler |
| Manufacturer Part Number | GP77759 |
| Manufacturer Warranty Description | Warranty |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | K-GP77759 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Outlet Connection Size | 0.5 inches |
| Outlet Connection Type | FIP |
| Size | No Size |
| Thread Size | 1/2 inch |
| Thread Type | Female Iron Pipe |
| UPC | 650531630650 |
| Unit Count | 1 Count |
| Valve Type | Pressure Balance Valve |
W**I
So far it stopped the dripping..
So far it stopped the dripping. Installation was easy and simple! Time will tell if this KOHLER GENUINE part how much it could last. It works for the following KOHLER's trim (in the picture)
C**.
I Have a Love/Hate Relationship With This Part
01/30/15 UPDATE =============== Since the original review, I've since replaced the mixer cap in our other two showers. I've grown to have a serious love/hate relationship with this part. I love it because it constantly fixes the problem where you barely get hot water. I hate it because the failure rate (especially in showers that ARE NOT used often) seems to be astronomically high -- unquestionably, I've now spent north of $200 on replacement mixer caps and pressure balance units over the past decade. In my most recent replacement, the failing cap literally fell apart as I unscrewed it from the brass valve housing, just like last time. Unbelievable. I can now safely say it is worth keeping one of these and a pressure balance unit on-hand -- there's a near-100% chance you will need them at some point. =============== ORIGINAL REVIEW =============== I was having an(other) issue with one of our Kohler shower faucets where hot water would only be dispensed if the handle was turned to the end of its' range of travel, at which time the overall pressure dropped significantly. After cracking open the handle assembly and making some tweaks to the anti-scalding collar (to no avail) I decided to order both this mixer valve and the pressure balance cartridge I had replaced in two other Kohler assemblies in our home. Once the parts came (thank you, Prime), I pulled the original mixer valve out and it, more or less, came apart in my hands. I re-seated the O-rings in the pressure balance cartridge and reaffixed the mixer cap to the brass housing. I turned the water back on for a test and sure enough, it was working perfectly now AND with better pressure than before. Bonus. Ten minutes later I had everything reassembled and re-caulked. Job done. I'm considering keeping one of these as a spare since the guts of these Kohler fixtures seem to fail with such regularity. If you're having any sort of issue with your Kohler fixture, chances are it's either this or the pressure balance cartridge. Buy them both and you (probably) can't go wrong. I'm on the handy side, so replacing this for me was not a big deal. If the thought of turning off your water supply or getting a little wet scares you.. best to have a friend handy who has done this kind of thing before :)
T**D
That it fit and worked properly.
It fit perfectly.
A**N
Works but a tiny bit larger than the original
Simple install that solved my shower leak problem and saved me a couple hundred dollars in plumber fees. It was ever so slightly larger than the original which made the faucet handle collar a bit more difficult to slip on but a little oil on the inside of the collar solved that issue.
B**N
Lasted 14 years of constant use by multiple adults and kids
I put a new one in to replace a leaking one that just spun all the way around when I bought my house. Hard labor for the last 6 or so years with the kids taking at least 1 shower a day, 2 if they play in the mud or go to the pool, plus me and the wife. Nearly 14 years till it started leaking and I bought a replacement.
A**R
Easy peasy, fit perfect
Replacement part for a Kohler Forte shower faucet. Watched a youtube video, followed directions. Advice is to take lots of pictures as you remove the existing part so you have a reference, if necessary, during reinstallation. Only complaint is the part came with a pill sized tube of grease for the seals. Needed a little bit more to cover all three seals. Took about 30 mins start to finish and only because when I disassembled and pulled the separate cartridge piece out a seal in the very back popped off and I found it after reassembly just before putting water back on. So had to take everything apart a second time. I’m guessing a qualified plumber could do this replacement in 10 minutes.
B**T
Buy direct from the manufacturer
Kohler makes and sells fantastic products!
C**F
Buy it and save
Great buy it was $30 more
T**N
Factory product. Perfect fit.
Product is as described and is a direct factory manufactured piece from Kohler. Fixed the issue I was having with a 15 year old cartridge. Slow drip for the last few months. Arrived quick and with all the related parts and extra seals and lubricant.
M**D
ممتاز
ممتاز جودة عالية
S**O
Excelente repuesto el monomando quedo como nuevo
es un producto original de excelente calidad lo cual asegura que el monomando funcionará por mucho tiempo mas
J**E
Good product !!
It took me a month to install this product. Although I watched how to do it in Youtube, at first, I was still hesitant to install it because, I thought it would be complicated... I almost called a plumber. But it was a very simple installation.... I even learned to assemble and disassemble this product, using the old one that I replaced. As a matter of fact, the old one was not really broken... the leaking was caused by the displacement of the washer for the cold water and for the hot water not coming out all the time, it was the spring that was displaced. I cleaned the whole unit, greased the springs and washers and it's all good !! But of course, I am now using the new one.
R**N
Funciona
Funciona
Trustpilot
3 days ago
1 month ago