Toilet parts that fit, by tank number
Lift the tank lid and read the number stamped on the inside back wall. American Standard: 4 = two-piece, 2 = one-piece.
Find your toilet
| If you have | Go to |
|---|---|
| No idea which toilet you have | Find your tank number |
| American Standard, any tank | American Standard hub |
| American Standard 4215A (Champion) | 4215A parts |
| American Standard 4149A | 4149A parts |
| A cracked or missing lid | Tank lid numbers |
| A flapper of unknown size | Flapper size |
| Kohler with a canister valve | Kohler canister seal |
| TOTO Drake | TOTO Drake ST743 |
| Mansfield tank 160 | Mansfield 160 |
| A bidet seat to buy | Bidet seat fit |
Sources
- American Standard Knowledge Base, Where can I find the model number of my toilet?: https://faq.americanstandard-us.com/article/1122 (read 2026-10-27)