Skip to main content
Moen Solutions

174329 Handle Adapter: 3372 or 3375 Independent Transfer Valves

This article will provide step-by-step instructions on replacing the 174329 handle adapter for the 3372 (3 Function) or 3375 (2 Function) Vertical Spa Transfer Valves.






1. Remove the handle screw (#1) by inserting the 7/64" Hex Wrench into the hole underneath the handle (#2) to unthread the handle screw (#1). Remove the handle (#2).

2. To remove the handle adapter (#4), use a Phillips screwdriver to unthread the adapter screw (#3) counter-clockwise and slide the handle adapter (#4) off.


1. Use pliers to pull the brass stem of the cartridge (#5) outward. Note: To ensure the proper operation of the valve, the cartridge stem (#5) must remain pulled outward. Snag_10ace1f.png

2. Rotate the stem of the cartridge (#5) so the two flat sides of the brass stem are facing to the left and right.

3. Slide the handle adapter (#4) onto the shower assembly. Using a Phillips screwdriver, thread and tighten the adapter screw (#3) into the center of the handle adapter (#4). Snag_14b9773.png
4. With the lever pointing down, slide the handle (#2) onto the adapter (#4) and use a  7/64" Hex Wrench to tighten the handle screw (#1)

For additional information on Moen products visit and select the type of faucet you are repairing. The faucet guide will contain repair details, troubleshooting and specific information on assembling handles associated with that style of product.

Still Not Finding What You're Looking For?

Contact Us or Call 1-800-BUY-MOEN           

Non US?  Moen Canada | Other International Sites

  • Was this article helpful?