How do I find my shower mixing valve?

Look at the center of the trim plate behind the shower handle to find a brand name or manufacturer symbol. If you see a “K,” the faucet is a Kohler unit; an “M” signifies Moen. American Standard, Delta and Price Pfister typically print their entire name on the faucet itself.

What is the PBU gp77759 for Kohler shower?

Features a red or black temperature limit stop attached to stem of the mixer cap. The brass, round, splined stem rotates clockwise to turn on. Mixer Cap GP77759 may resolve a constant leak from the showerhead or spout. Pressure Balancing Unit (PBU) GP800820 may resolve temperature issues. K-304-K-NA Service Parts information.

Is the Kohler part gp877851 rite temp mixer compatible?

Compatible with Kohler shower valves K-304 and K-11748 platforms Latest Rite-Temp technology maintains even temperature, preventing water pressure fluctuations and protecting the user Resistant to aggressive water conditions providing long-lasting performance

What kind of PBU does a Kohler shower valve have?

The valve had a PBU with smooth o-rings. The K-2971 has a PBU with notched o-rings. The PBU GP1144925 is interchangeable and used with both the K-306 and K-2971. Black mixer cap has 2 screws located at 3 and 9 o’clock that screw the cap to the brass valve body. The square brass stem rotates clockwise to turn on. Manufactured from 1997-2004.

What is the Kohler rite temp mixer and pressure balance assembly?

Kohler’s Web site listed part# Kohler K-8305-NA for the mixing valve and pressure balance assembly, which wasn’t correct for my version of the handle. This part, GP876851, replaces the older GP76851. That’s not a typo. We got it for a plumber to install to replace a Kohler shower temp regulator.

Compatible with Kohler shower valves K-304 and K-11748 platforms Latest Rite-Temp technology maintains even temperature, preventing water pressure fluctuations and protecting the user Resistant to aggressive water conditions providing long-lasting performance

Can a k-15701 PBU be upgraded to gp876751?

I’m glad to answer your question. If you have the K-15701 valve with a square brass stem protruding from the black cap, the cap and PBU can be upgraded to the GP876851 (which includes the GP77759 and GP500520. This would be compatible with the TS15621-4 trim.

How to replace pressure balancing unit in Kohler mixer?

If the link doesn’t work, just search YouTube for 304:305:11748 Mixer Cap and Pressure Balancing Unit Replacement Parts and Temperature Adjustment. The video takes away any anxiety you may have doing this yourself.

Where are the PBU rings on a Kohler shower?

See the “Identify a Single Control Bath/Shower Valve” help topic for more information. Place the small O-rings, (#3 from Fig 1), on the back of the PBU. The PBU location for the O-rings is oval-shaped but the small O-rings are flexible enough to fit into the location (Fig. 3). Proceed by reinstalling the PBU and mixer cap into the valve body.