Delta®
Solenoid Assembly - Bathroom
Model#:
EP74857
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PRODUCT FEATURES
The solenoid assembly enables your Delta Touch2O® bathroom faucet. It senses your touch or hands-free activation, and shows the water temperature. Consider replacing this part if you notice either of these two issues: The faucet keeps dripping until you move the handle to OFF, even after you’ve flushed the system. Or Touch activation works only sometimes, and you’ve already ruled out other causes (improper installation, metal shank touching the sink, loose wires, battery pack in the wrong spot, or tapping the faucet incorrectly).
- To ensure compability with your faucet, location a sticker on the solenoid assembly with a part number. Part numbers that work with this replacement solenoid are X00090226, X00074954, or X00064688.
- Backed by Delta Faucet's Electronics 5-year Limited Warranty
Documents & Specs
Product Support, Repair Parts & Technical Specifications
Installation Information
Overall Height (in.) :
2.5
Valve Type:
NA
REVIEWS
Rated 2 out of
5
by
Roger from
It works…. But…
While this replacement solenoid works, I am not happy that this Delta product works only five years. This is my third replacement. The second and third replacements tend to leak under the sink. The third replacement (this recent one) is flaky. It likes to randomly turn off without tapping the metal parts of the faucet and can sometimes turn on without tapping the metal parts.
Date published: 2025-09-28
Rated 1 out of
5
by
M3753 from
Cheaply made and breaks often
I have had to replace this part 3 times now in my faucets. It’s no wonder they consider this part to not be warrantied very long. What a poor design . Charging over $200 for something that just breaks in a few years is such a waste. Don’t buy their touch free faucets unless you want maintenance for a lifetime.
Date published: 2025-09-17
Rated 1 out of
5
by
DrThom from
Poor quality, poor design
I have 5 of the Touch2O faucets in my house. This is the number one problem. This part fails to work, leaks out of the solenoid, doesn't show the temperature correctly, or the solenoid doesn't close all the way and causes the faucet to leak. Overall this is a poorly designed and implemented part.
Date published: 2025-03-25
Rated 1 out of
5
by
Stephanie from
Needs to be replaced often.
I’m having to the replace this after just 3 years, and it was replaced five years before that.
Date published: 2025-03-07
Q&A
Will the EP74857 work with older Delta Touch20 bath faucets that ONLY have touch sensor and no proximity sensor? My current solenoid is *similar* to RP64166 (a.k.a 64688), but only has tag on it reading 64687 so I don't know the actual "RP" part number.
Hello Valued Customer,
Thank you for contacting Delta Faucet Company!
No, the EP74857 is not compatible with RP70179 (64687). However, the EP75384 will work!
We appreciate your inquiry. Please reach out directly if you have further questions!
Best Regards,
Kyra
Digital Communications Specialist
Date published: 2025-09-22
Can I purchase the EP74857 solenoid only and save a few coins. I already have an extra battery holder.
Hi Need new solenoid,
Thank you for your question about the Delta Faucet EP74857.
I apologize that this is not available without the included battery holder.
Please contact us directly if you have any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-03-28
Can you buy a plug in wall adapter for this item
Hello!
Yes, we offer the EP102157 A/C adapter.
https://www.deltafaucet.com/parts/product/EP102157.html
Please reach out with further questions!
Best Regards,
Tim
Digital Communications Specialist
Date published: 2026-07-13
Is this the solenoid replacement for the Delta 592T?
Thank you for your question Sgraves059! Yes, EP74857 is the solenoid replacement for the 592T-DST faucet.
Best regards, Bryan
Date published: 2024-03-28
Can I just buy the battery holder for the faucet? Somehow I lost the insert that holds the batteries, I don't need the selonoid. Thank you.
Hello neelie43,
Thank you for your question. We are happy to help you find the part your need! The battery box is available as part number RP78389. Please reach out directly if you have any questions or need additional assistance.
Best regards,
Bryan
Date published: 2024-03-28
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