Thetford parts reference
Thetford 635815
Door Gasket
635815 is the Thetford part number for the door gasket. It is printed in Thetford’s own parts documentation, which we hold a copy of and link below.
Thetford says to use 635918 instead
Thetford marks this number with “USE 635918” on its own parts list, which is the manufacturer telling you 635918 is what to order now. That instruction comes from the document, not from us, and not from what sellers happen to call the part.
Current number: 635918
Which parts lists carry this number
It appears on the parts list for the NR740 Series.
Where this comes from
- Document
- PL_NR740_635866_20160418.pdf
- Published by
- Thetford
- Retrieved
- 2026-08-28
- File checksum (SHA-1)
dec481b0bcbd1c3da45c16f710e6f6bd2b4f3ce0
What we have not checked
We can show you that 635815 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 That depends on your model year, build date and what is actually installed, and we do not publish a fitment claim until we can show it in the manufacturer’s own document.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
Listings from eBay
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