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  • Pressure balancing unit (shower) parts cartridge and cap replace for kohler GP76851compatible for Rite-Temp and 1/2" Shower Valve GP500520 and GP77759 parts after market replacement
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Pressure balancing unit (shower) parts cartridge and cap replace for kohler GP76851compatible for Rite-Temp and 1/2" Shower Valve GP500520 and GP77759 parts after market replacement

3.9 out of 5 stars 551 ratings
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Brand GREATUS
Item dimensions L x W x H 8.9 x 7.9 x 7.9 Centimetres
Inlet connection size 0.5 inches
Valve type Pressure balancing unit
Manufacturer GreatUs
UPC 778992056168

About this item

  • 1. Controls pressure and regulates temperature to ensure a gracious shower experience, repairing the problem of old equipment leakage and cannot mix hot and cold water correctly.
  • 2.Consists of the parts replace for the #GP500520 and #GP77759， Includes cartridge and mixer cap for 1/2" valve. Compatible with most Rite-Temp valves.
  • 3. Including the sandpaper, which can help you remove scale and avoid leakage caused by scale.
  • 4.Please confirm the model before purchasing.
  • 5. Please pay attention to the correct installation of the O-ring, the O-ring needs to be placed flat in the groove, dont rotate the cartridge, just put it directly.

Frequently bought together

This item: Pressure balancing unit (shower) parts cartridge and cap replace for kohler GP76851compatible for Rite-Temp and 1/2" Shower Valve GP500520 and GP77759 parts after market replacement
$53.84
Get it by Monday, Aug 18
In Stock
Sold by Babapunk and ships from 鶹 Fulfillment.
+
Kohler 1060514 Handle Insert
$18.95
Get it by Monday, Aug 18
In Stock
Sold by Canadain supply store and ships from 鶹 Fulfillment.
Total price:$00
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Product description

GP76851 Mixer Cap and Pressure Balancing Unit (Shower) Parts Cartridge
Replacement for #GP500520 and GP77759 for 1/2" Shower Valve.
It controls pressure and regulates temperature to ensure a gracious shower experience.

Installation Troubleshooting Guide
For Leakage
1.O-ring is the key, must be replaced, and add lubricant, then firmly placed in the correct position.
2. Do not rotate the Cartridge, just put it in, otherwise the O-ring will shift and cause leakage.
3. Tighten the screws to fix the cap and the Cartridge.
For Valve Cannot be Shut Off
A. Remove the Mixer Cap. Use a tool to help turn the valve stem or collar, and check whether the two water outlets at the bottom of the Mixer Cap open/close normally.
B. If the mixer cap is open/close normal, please check whether the collar is reset after adjusting the temperature limit, and check whether the shower handle is installed correctly.

NOTE: Please read the packaging instructions carefully before installation. If you encounter any problems with the installation, we will help you.

Product information

Technical Details

Manufacturer ‎GreatUs
Product Dimensions ‎8.89 x 7.87 x 7.87 cm; 281 g
Colour ‎Black
Item Package Quantity ‎1
Batteries Included? ‎No
Batteries Required? ‎No
Item Weight ‎281 g

Additional Information

ASIN B07VZ4WRV2
Customer Reviews
3.9 out of 5 stars 551 ratings

3.9 out of 5 stars
鶹 Rank
Date First Available Aug. 24 2019

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Pressure balancing unit (shower) parts cartridge and cap replace for kohler GP76851compatible for Rite-Temp and 1/2" Shower Valve GP500520 and GP77759 parts after market replacement

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Customer reviews

3.9 out of 5 stars
551 global ratings

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Customers say

Customers like the fit, durability, and installation of the valve. They mention it fits perfectly, is easy to install, and follows instructions using provided round o-rings. However, some customers have reported that it leaks and is of poor quality.

Select to learn more

FitDurabilityInstallationLeakageQuality
8 customers mention "Fit"8 positive0 negative

Customers like the fit of the valve. They mention it fits perfectly and is easy to install.

"Perfect fit, matched it to OEM Kohler # gp76851. Followed instructions using provided round o-rings. Used requested plumbers silicone lube...." Read more

"...I bought one of these. It fit good and worked fine for about 1.5 years and broke! I had cold water only again!..." Read more

"Fit nicely, exactly the same as the original item" Read more

"Fits as expected" Read more

6 customers mention "Durability"6 positive0 negative

Customers are satisfied with the durability of the valve. They mention it works and doesn't have any issues.

"Worked for about a week, then started leaking again. Would not recommend." Read more

"...I bought one of these. It fit good and worked fine for about 1.5 years and broke! I had cold water only again!..." Read more

"Worked excellent, no more drips." Read more

"Product worked and fast shipping was exactly as advertised." Read more

3 customers mention "Installation"3 positive0 negative

Customers find the valve easy to install. They mention it fits perfectly and they followed the instructions using provided round o-rings.

"Easy to install and no more leaks !" Read more

"exactly as on picture, and easy to install." Read more

"Perfect fit, matched it to OEM Kohler # gp76851. Followed instructions using provided round o-rings. Used requested plumbers silicone lube...." Read more

16 customers mention "Leakage"3 positive13 negative

Customers are dissatisfied with the leakage of the valve. They mention it's leaking, has a slow drip from the original replacement, and has water coming out of the trim piece.

"Worked for about a week, then started leaking again. Would not recommend." Read more

"This was a piece of garbage. Leaked worse than the one I was replacing...." Read more

"Very bad product, waste of money and time, keep leaking all the time" Read more

"This product's are leaking and damaged my ceilings," Read more

11 customers mention "Quality"2 positive9 negative

Customers are dissatisfied with the quality of the valve. They mention it's not durable and doesn't last long.

"This was a piece of garbage. Leaked worse than the one I was replacing...." Read more

"Very bad product, waste of money and time, keep leaking all the time" Read more

"...Pretty poorly built product from my personal experience." Read more

"Poor quality, not genuine Kohler parts...." Read more

Top reviews from Canada

  • JARVY
    5.0 out of 5 stars Perfect fit to OEM # GP76851 Kohler
    Reviewed in Canada on July 7, 2025
    Verified Purchase
    Perfect fit, matched it to OEM Kohler # gp76851. Followed instructions using provided round o-rings. Used requested plumbers silicone lube. Installed exactly how I removed the old one. Tap NO longer drips. So far so good.
    Helpful
     Report
  • Meiyu Wang
    5.0 out of 5 stars fix
    Reviewed in Canada on June 3, 2025
    Verified Purchase
    just fix the shower faucet
    Helpful
     Report
  • Amanda M.
    1.0 out of 5 stars Poor quality, not genuine Kohler parts.
    Reviewed in Canada on July 6, 2025
    Verified Purchase
    Worked for about a week, then started leaking again. Would not recommend.
    Helpful
     Report
  • Mike
    5.0 out of 5 stars Perfect fit! looks stock
    Reviewed in Canada on February 17, 2025
    Verified Purchase
    fit perfectly without any issues. followed instructions and videos online. It's been a few months and still going strong! Better price than the "Big" brands
    Helpful
     Report
  • 鶹 Customer
    4.0 out of 5 stars It fits, but not durable.
    Reviewed in Canada on August 5, 2025
    Verified Purchase
    About 2 years ago,my shower faucet only let cold water out. I bought one of these. It fit good and worked fine for about 1.5 years and broke! I had cold water only again! I got the second one about 6 months ago. It's been working fine solar. I wander how long this one would last?
    Helpful
     Report
  • Basile Ginis
    5.0 out of 5 stars Good product, very good price
    Reviewed in Canada on January 8, 2025
    Verified Purchase
    Fit nicely, exactly the same as the original item
    Helpful
     Report
  • g barker
    5.0 out of 5 stars Fits perfectly
    Reviewed in Canada on January 4, 2025
    Verified Purchase
    Came on time and it works just like it was new
    Helpful
     Report
  • Patrick Buye
    1.0 out of 5 stars Does not work
    Reviewed in Canada on May 9, 2025
    Verified Purchase
    This was a piece of garbage. Leaked worse than the one I was replacing. Had a slow drip from the original replacement one was a steady stream of water. Then bought an original Koler paid more but it worked perfectly. Don’t waste your money on this garbage…
    Helpful
     Report

Top reviews from other countries

Translate all reviews to English
  • José Flores
    5.0 out of 5 stars La Rapidez del producto y la marca kooler
    Reviewed in Mexico on February 14, 2025
    Verified Purchase
    Excelente material
    Y seguro
    Un servicio super rápido
    Ya está instalo
    Quedo Excelente
    Gracias
    Report
  • Brian
    5.0 out of 5 stars It was the exact fit for my old Kohler
    Reviewed in the United States on April 11, 2024
    Verified Purchase
    As others have said, this is apparently the older style, which is what I actually needed for my nearly 20 year old shower.

    I don't see any leaking, and the knob now operates smoothly and precisely (as precise as a shower knob could be, I suppose).

    Ask me in 10 years if it's reliable. :D Actually, it'll probably be fine. It seemed to be as good as the original one was in terms of quality. Buying an original isn't really an option, since it's obsolete and only available from people with old stock who overcharge. I decided to take my chances on a new aftermarket part, and it paid off.

    I would recommend it.

    For anybody who is curious, I didn't have any leaking, and it did get hot and cold. The symptom was that the knob didn't turn as well (I didn't realize until I replaced it), and it was very difficult to get the temperature right. I would have to turn it all the way to the stop to get it hot, then turn it almost all the way back down to get it to a normal temperature. It was slowly getting worse over time, but got significantly worse a couple of weeks ago, which is what prompted me to look for a replacement. I wasn't sure if it was the valve or the PDU, so I did both.

    This part came with extra washers, so I picked the ones that matched the original (the smaller ones). It also came with a little wrench for adjusting the temperature stop. They also threw in a couple of squares of sandpaper, just in case, but I didn't do anything with the sandpaper.

    I did put some o-ring lube (from my swimming pool stuff) on the rubber washers, just in case. If nothing else, it helped hold them in place until I had everything back together.

    I was very happy that I didn't have to tear up the walls to get this job done.
    Report
  • Ana Carolina Castillo Bustamante
    5.0 out of 5 stars Excelente
    Reviewed in Mexico on August 25, 2024
    Verified Purchase
    Yo compré dos de estas piezas y embonaron muy bien el la regadera! En vez de romper toda la tubería solo compré esta pieza y pude reparar el goteo que tenía. Súper recomiendo si es compatible con su regadera.
    Report
  • nesnakes
    5.0 out of 5 stars Feelin hot hot hot!
    Reviewed in the United States on August 5, 2024
    Verified Purchase
    Item Description: Hot/Cold water mixer that fits inside/behind the Kohler brand shower handles.

    Pros: The previous replacement, which was a Kohler genuine part, had failed. This worked nicely & was a relatively easy replacement.

    Cons: the 2 smaller O-rings that fit against the furthest most inside point, were too loose & fell off easily. Add some vaseline or lubricant to keep them in place. Problem solved! It also comes with a bunch of other O-rings that did not seem necessary but had me 2nd-guesting myself that I might have left something out. The instructions were not super clear. BUT alas.. no water leaking. Keep in mind that this is a medium-skill level repair. I am not a plumber BUT if you watch a YouTube video & have the right tools, you can do it.

    Suggestions to manufacture: none

    Would I buy again or as a gift? Yes.. if this one fails, I will order again.

    Did I receive anything for this review? NO! I paid full price for this item.
    Report
  • 鶹 Customer
    1.0 out of 5 stars Product leaked in under a year
    Reviewed in the United States on July 31, 2025
    Verified Purchase
    Valve installed easy and worked great until it leaked. Leaked after 7 month and now I'm replacing the Sheetrock in the room below. Not recommended. Stick with the original manufacturer.
    Report

Product Summary: Pressure balancing unit (shower) parts cartridge and cap replace for kohler GP76851compatible for Rite-Temp and 1/2" Shower Valve GP500520 and GP77759 parts after market replacement

From GREATUS

3.9 out of 5 stars, 551 ratings

Customer reviews

100+ bought in past month

Price

No featured offers available

Other sellers

Other sellers

About this Item

  • 1. Controls pressure and regulates temperature to ensure a gracious shower experience, repairing the problem of old equipment leakage and cannot mix hot and cold water correctly.
  • 2.Consists of the parts replace for the #GP500520 and #GP77759， Includes cartridge and mixer cap for 1/2" valve. Compatible with most Rite-Temp valves.
  • 3. Including the sandpaper, which can help you remove scale and avoid leakage caused by scale.
  • 4.Please confirm the model before purchasing.
  • 5. Please pay attention to the correct installation of the O-ring, the O-ring needs to be placed flat in the groove, dont rotate the cartridge, just put it directly.

Product description

GP76851 Mixer Cap and Pressure Balancing Unit (Shower) Parts Cartridge Replacement for #GP500520 and GP77759 for 1/2" Shower Valve. It controls pressure and regulates temperature to ensure a gracious shower experience. Installation Troubleshooting Guide For Leakage 1.O-ring is the key, must be replaced, and add lubricant, then firmly placed in the correct position. 2. Do not rotate the Cartridge, just put it in, otherwise the O-ring will shift and cause leakage. 3. Tighten the screws to fix the cap and the Cartridge. For Valve Cannot be Shut Off A. Remove the Mixer Cap. Use a tool to help turn the valve stem or collar, and check whether the two water outlets at the bottom of the Mixer Cap open/close normally. B. If the mixer cap is open/close normal, please check whether the collar is reset after adjusting the temperature limit, and check whether the shower handle is installed correctly. NOTE: Please read the packaging instructions carefully before installation. If you encounter any problems with the installation, we will help you.
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