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CHINA LID FOR CST646E
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- china lid
- Parts and Accessories Type:
- Tank Lid
- Department:
- Plumbing
- Application:
- Toilet
TOTO TCU646CRE#03 – Frequently Asked Questions
1) Will the Toto TCU646CRE#03 tank lid fit a CST646E toilet?
Yes. The TCU646CRE#03 is the vitreous china tank lid made for the Toto CST646E toilet. Tank lids are model-specific, so it belongs on that tank and should not be ordered as a general replacement for other Toto two-piece toilets.
2) I cracked the tank lid on a Toto toilet in a rental unit. Can I just buy the lid instead of the whole toilet?
Yes, the lid is sold as a standalone part. For a CST646E tank, the replacement china lid is Toto TCU646CRE#03, so a cracked or chipped lid does not mean replacing the tank or the toilet. Match the part number to the toilet model stamped inside the tank before you order.
3) Is the Toto TCU646CRE#03 lid china or plastic?
It is a vitreous china lid, the same material as the toilet tank itself, not a plastic cover. That matters for weight and handling: china lids chip at the edges if dropped or set down hard, so lift from both ends rather than one corner.
4) Does the Toto TCU646CRE#03 come with the flush valve or trip lever?
No. It is the china tank lid only. Flush valve, fill valve, flapper, trip lever and tank gaskets are separate parts and have to be ordered individually if those are also failing.
5) What finish code is the Toto CST646E tank lid and will it match my existing toilet?
The lid is supplied under part number TCU646CRE#03. The #03 suffix is Toto's color code, so the lid is matched to a toilet in that same #03 color. If the tank on your opening carries a different Toto color suffix, order the lid in that code instead so the gloss and tone match.
6) Does a replacement Toto tank lid need any mounting hardware or sealant?
No hardware is involved. A china tank lid sits loose on the rim of the tank by gravity, so there is nothing to bolt, thread or seal. Install is simply setting it in place on the CST646E tank.
How fast can I get the TOTO TCU646CRE#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 TCU646CRE#03 come with a warranty?
Absolutely. The TOTO TCU646CRE#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 TCU646CRE#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
Why buy the TOTO TCU646CRE#03 from ZenSupply?
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