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3/4″ Thermostatic Cartridge for Kohler 78913

Bright brass cartridge with metal c clip black rubber o-rings stainless screen and copper thermo.
3/4" Thermostatic Cartridge for Kohler 78913 - Image 2
3/4" Thermostatic Cartridge for Kohler 78913 - Image 3
3/4" Thermostatic Cartridge for Kohler 78913 - Image 4
Bright brass cartridge with metal c clip black rubber o-rings stainless screen and copper thermo.

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“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”
-Kimberly S.
04/25/2026

$306.47

 

The Kohler 78913 (often listed as K-78913) is a 3/4-inch high-flow thermostatic valve cartridge. It is primarily designed for Kohler MasterShower systems and K-400/K-401 rough-in valves manufactured prior to 2006, ensuring precise water temperature control and preventing scalding.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 12753a Category: Tag:

Ensure a safe, comfortable, and reliable shower experience with the genuine Kohler 78913 Thermostatic Valve Cartridge. A replacement for 3/4-inch rough-in valves (including models K400, K-400-K and K-401-K), this high-flow cartridge restores smooth, dependable water regulation to your luxury bath or shower system.

 

78913

 

  • It regulates both water temperature and flow concurrently).
  • 3/4-inch valve profile engineered for high-flow rate luxury shower applications manufactured prior to 2006.
  • Built with high-quality brass components and a specialized memory-alloy spiral temperature sensing probe.

 

Related document

 

Kohler K-400 Series Thermostatic Mixing Valve Specs

Common questions about this product

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

Will this item replace the original OEM part? chevron-icon

Yes, this aftermarket part will replace your OEM part. 

chat iconWHAT OUR CUSTOMERS SAY…

“I spent the balance of 3 days looking locallyfor a replacement head for our Kitchen sink...only to find these guys with an exact fit and finish and lower than market pricing...I immediately ordered (an awesome website with smooth cart checkout). 20 minutes later I find a blown out gasket/ring that I was able to replace, and avoid having to replace entire spray head. I text there support line ( while the store was closed!) Requesting the order to be canceled. Within minutes and without hesitation or questions they had refunded my card and canceled the order. They have one of the largest online inventories, notably stocking harder to locate stuff and boasting a separate text line dedicated to recieve customer pics of parts/gear to ensure we are getting exactly what we need. Enough said. Bring your future plumbing problems/needs here and trust you will be taken care of...I know I will... @ Noels, thanks for continuing a tradition of honorable business practice, in a world that is littered with allot less... ”
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03/14/2026
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