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.

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.

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

Can you use thick washers on a PBU?

Discard the thick washers (#1 from Fig. 1). These washers are only used when installing a PBU in the Coralais® K-15877 valve. If installing a new PBU with an existing mixer cap, install the medium O-rings, (#2 from Fig. 1), and large O-ring, (#4 from Fig. 1), onto the existing mixer cap (Fig. 2).

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.

Can a k-15701 PBU be upgraded to gp876751?