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Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- replacement lid
- Parts and Accessories Type:
- Tank Lid
- Department:
- Plumbing
- Application:
- Toilet
TOTO TCU743CR#01 – Frequently Asked Questions
1) What does the TOTO TCU743CR#01 tank lid fit?
The TCU743CR#01 is TOTO's replacement tank lid for the ST743SB toilet tank. It's the lid only, not the tank, so order it when the original was cracked or dropped and the tank itself is still sound. Match the tank model number stamped inside your existing tank to ST743SB before ordering, since TOTO lids are model-specific and a lid from an adjacent tank will not seat correctly.
2) I manage a building with several TOTO toilets. How do I know which replacement lid I need?
The lid follows the tank, not the bowl or the complete toilet suite name. Lift what's left of the old lid and read the model number cast into the inside back wall of the tank. If it reads ST743SB, the TCU743CR#01 is the correct cover. A tank number that differs by even a letter takes a different lid, because the tapered rim and the bolt-hole geometry change between tank castings.
3) Does the TOTO TCU743CR#01 come with the flush valve or trip lever?
Lid only. The TCU743CR#01 is a single replacement part, the porcelain tank cover for the ST743SB tank, with no trim, no flush valve, no fill valve and no trip lever included. If the flush handle or internal trim is also being replaced on that toilet, those are separate TOTO part numbers.
How fast can I get the TOTO TCU743CR#01 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 TCU743CR#01 come with a warranty?
Absolutely. The TOTO TCU743CR#01 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 TCU743CR#01?
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 TCU743CR#01 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.