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ST776 TANK LID ASSEMBLY
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Tank Lid
- Parts and Accessories Type:
- Tank Lid
- Department:
- Plumbing
- Application:
- Toilet
TOTO TCU776CR#03 – Frequently Asked Questions
1) What is the Toto TCU776CR#03 part, and does it include anything besides the lid?
TCU776CR#03 is the replacement tank lid assembly for the Toto ST776 toilet tank. It's the ceramic cover for the tank, ordered as a part rather than a complete toilet, so it does not come with a tank, bowl or trim.
2) My Toto tank lid cracked. How do I know this is the right replacement lid for my toilet?
Match the tank model, not the toilet model. This lid fits the Toto ST776 tank, and Toto lids are cut to one specific tank footprint, so a lid from another series will not seat correctly. Look for the ST number stamped inside your tank or on the back of the broken lid. If it reads ST776, TCU776CR#03 is the correct part.
3) Will this Toto ST776 lid fit a different Toto tank like an ST743 or ST454?
No. TCU776CR#03 is cut for the ST776 tank only. Toto tank openings differ in length, width and rim profile between series, so a lid from one ST number will not sit flush or seal against the rim of another. Order by your own tank's ST number.
4) Is TCU776CR#03 the full part number I should order, and what does the #03 mean?
Order it as TCU776CR#03 in full. The suffix after the hash is Toto's colour code, so the base number identifies the lid and the #03 identifies the finish. Ordering the base number alone can bring the wrong colour, which on a visible tank lid is the whole point of the part.
5) We manage apartments with Toto toilets. Can we just buy the lid instead of the whole toilet when one breaks?
Yes, and that's what this part is for. A cracked or dropped lid is the most common single failure on a tank, and the ST776 lid is sold on its own so you replace the broken piece and leave the tank, bowl and working trim in place. Note the colour code with the tank model in your unit records so re-orders match the rest of the fixtures.
6) Does a Toto tank lid replacement need any hardware or tools to install?
No hardware is involved. The lid is a loose ceramic cover that sits on the tank rim under its own weight, so installation is setting it in place once the broken one is removed. There are no bolts, gaskets or fasteners supplied with it because none are used.
How fast can I get the TOTO TCU776CR#03 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 TCU776CR#03 come with a warranty?
Absolutely. The TOTO TCU776CR#03 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 TCU776CR#03?
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
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