The Thetford C223-CS is a permanent cassette toilet in the C220 family. It flushes from the RV's pressurized freshwater supply and has a removable waste cassette. To identify a replacement, first distinguish the complete toilet from the flush valve, electronic controls and removable waste tank. The drawings and part numbers below refer specifically to the C223-CS.
Identify the freshwater, flush and waste-cassette components
Thetford C223-CS numbered service parts
Use the original manufacturer callout number to identify the relevant component. Thetford's availability symbols describe the original manufacturer service parts, not the store's current stock.
| Callout | Manufacturer MPN | Component |
|---|---|---|
| 1 | 20095062 | White seat and cover |
| 2 | 16833 | Vacuum breaker |
| 3 | 20095262 | Flush tube and nozzle (manufacturer marks unavailable) |
| 4 | 23709 | Electric flush valve with hose nut and barb |
| 5 | 200956 | Level-indicator lens (manufacturer marks unavailable) |
| 6 | 200957 | Waste-level indicator (manufacturer marks limited availability) |
| 7 | 200962 | Power control board |
| 8 | 20097462 | Flush control panel and sticker |
| 9 | 200975 | Wall-base seal (manufacturer marks unavailable) |
| 10 | 20097706 | Complete C220-series waste cassette; separate from full toilet |
Not every listed component is sold separately. Compare the exact toilet model and connector configuration before substituting a control board, water valve or cassette.
Compare the complete C223-CS toilet
This product card shows the complete Thetford 200866SP toilet from the UsedRVParts catalog. It is not a standalone cassette-tank replacement.
Original Thetford exploded drawing
Open the manufacturer's C223-CS ten-callout exploded parts diagram (PDF). It shows the actual part placement and is useful for comparing the seat, valve, level indicator, controls and removable cassette.
Use the full-size manufacturer's drawing for detailed component location. This reference page avoids relying on a permanently embedded PDF, which may not load consistently in all mobile browsers.