Delta®
Stem Extender - 18 Series
Model#:
RP34787
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Documents & Specs
Installation Information
Overall Height (in.) :
13/16
Valve Type:
NA
REVIEWS
Q&A
Does this Stem Extender fit or 17 Series
Hello looking for a stem extender for 17 series for our shower, when we have the new cement board installed along with the new tile for the wall, the original stem is to short. Also we prob will not be able to fit any nob on the stem to turn the water on without an extender.
Thanks
Hi Anousone, Thank you for your question. If you have a Monitor 17 series tub/shower faucet with a dual function pressure balanced cartridge we do not offer an extension kit. You will have to replumb the valve to the proper depth.
If you have a TempAssure 17T series faucet with a thermostatic cartridge the part number for the extension kit is RP75137.
Thanks,
Dave
Date published: 2024-03-28
Is this stem extender for the 3 function shower? What is the part number for the stem extender for 6 function shower, jets and hand wand.
Hi Eddie,
Thank you for your question! Our 3 and 6 function shower diverters currently use the extension kit RP75137 with diverter cartridge RP51918 or RP51919.
For an older jetted shower diverter that uses RP25513 stem, a stem extender is RP34787.
Please reach out with any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2025-06-02
The parts diagram for an R18000XOWS valve shows a screw - part # RP37890 - which attaches the stem extender to the stem. Part # RP37890 shows up as "discontinued" in the parts catalog. Is there a substitute part for that screw?
Hello Valued Customer,
Thank you for contacting Delta Faucet Company!
The RP37890 stem extender screw is obsolete and is no longer being manufactured.
We appreciate your inquiry. Please reach out directly if you have further questions!
Best Regards,
Kyra
Digital Communications Specialist
Date published: 2025-02-10
Hello, I believe I have a 18 series Single Handle Monitor® MultiChoice® Jetted Shower™ and Jetted Shower XO® Trim. The stem extender broke off for the body sprayer. Would this be the correct item?
Hi Nick_Tulsa,
Thank you for your question about the Delta Faucet RP34787.
This stem extender is used by R18000, R18224, and other models that use the RP25513 stem assembly in the diverter. See the parts diagram here:
https://media.deltafaucet.com/PartsDiagram/77499-PD%20Rev%20A.pdf
Please reach out with any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-10-01
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