Thetford parts reference
Thetford 623887
Flapper Assy-Double Pole/Black
623887 is the Thetford part number for the flapper assy-double pole/black. It is printed in Thetford’s own parts documentation, which we hold a copy of and link below.
What this number replaces
If you were looking for 619845, this is the number that part points to. Thetford marks it with “USE 623887”, so 623887 is the one to order.
Which parts lists carry this number
It appears on the parts list for the 1200 Series.
Check the version before you order
This part comes in more than one version, and they differ by colour. Ordering the wrong one gets you a part that is real, correct for the model, and still not the one you need. The other versions on the same documentation are listed below — check yours before ordering.
- 619845Flapper Assy-Double Pole/White
Where this comes from
- Document
- PL_629700_1200_022025.pdf
- Published by
- Thetford
- Retrieved
- 2026-08-28
- File checksum (SHA-1)
55e15e16179f868835f72a4f2fce72d7a0ad8c6c
What we have not checked
We can show you that 623887 is a real Thetford number, what Thetford calls it, and which parts lists carry it. We have not verified that it fits your camper. That depends on your model year, build date and what is actually installed, and we do not publish a fitment claim until we can show it in the manufacturer’s own document.
Current marketplace inventory
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