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SOLENOID & DIAPHRAGM ASSY UNIT
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- solenoid diaphragm assy
- Parts and Accessories Type:
- Solenoid
- Department:
- Plumbing
TOTO TH559EDV464 – Frequently Asked Questions
1) What exactly is the TOTO TH559EDV464 part?
It's a replacement solenoid and diaphragm assembly unit for TOTO sensor flush valve hardware. The solenoid is the electrically operated part that opens and closes flow when the sensor fires, and the diaphragm is the rubber seal that actually controls the water passage. The two come together as one assembly under part number TH559EDV464.
2) My TOTO sensor flush valve runs constantly or won't shut off. Is the TH559EDV464 the part that fixes that?
A valve that runs on, drips, or fails to close is most often a failed diaphragm or a solenoid that isn't seating, and TH559EDV464 replaces both as one unit rather than making you diagnose them separately. Match the part number to your valve model before ordering, since TOTO uses different solenoid assemblies across its flush valve families.
3) Is TH559EDV464 a complete flush valve or just the internal repair part?
Just the internal repair part. You get the solenoid and diaphragm assembly, not the valve body, cover, sensor, or mounting hardware. If the valve body itself is damaged or the sensor eye has failed, this assembly won't solve it.
4) Do I need to order a separate diaphragm along with the TOTO TH559EDV464 solenoid?
No. The diaphragm is part of the same assembly, so one part number covers both. That's useful for facilities stocking spares, since a single line item rebuilds the wet side and the actuating side of the valve at once.
5) Is there more than one version or finish of the TOTO TH559EDV464 to choose from?
No options to pick. TH559EDV464 is sold as a single configuration, so there's no finish, voltage, or size selection to make on the order. Order by that part number and you get the one assembly TOTO builds under it.
How fast can I get the TOTO TH559EDV464 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TOTO TH559EDV464 come with a warranty?
Absolutely. The TOTO TH559EDV464 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the TOTO TH559EDV464?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the TOTO TH559EDV464 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.