Thetford · Catalog Reference
Thetford 35804
No-Spill Water Fill Cap
35804 is the Thetford part number for the no-spill water fill cap. It is printed in Thetford’s own parts documentation, which we hold a copy of and link below.
Current eBay listings for Thetford 35804
Search eBay for Thetford 35804eBay carries exact OEM numbers, discontinued parts and old stock that general retailers drop, which is usually where a part this specific turns up.
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Also search Amazon for this part number
Catalog Reference: this number appears in manufacturer documentation, but model compatibility has not yet been confirmed.
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Which parts lists carry this number
It appears on the parts lists for 8 different models: Porta Potti 155 / 155SL / 135 / 135 Marine, Porta Potti 235 / 245 / 255 / 265, Porta Potti 260 / 335, Porta Potti 345 / Campa Potti XG, Porta Potti 365 MSD / 365, Porta Potti 465 / 465 MSD, Porta Potti 555 / 565 / 735 / 735 Marine and Porta Potti 735 MSD / 735 Marine / 775 MSD. A number shared across several models usually means the component was carried over between them, which is useful when the exact list for your model is not the one you can find.
Availability
Thetford marks this number with an asterisk, and the legend on that document reads “LIMITED AVAILABILITY”. It is still a live number, but supply is constrained, so it is worth checking secondary sources rather than assuming it is freely stocked.
Where this comes from
- Document
- Thetford parts list for Porta Potti 155 / 155SL / 135 / 135 MarinePL_PortaPotti135.135Marine.155.155SL_Rev-A_10122024.pdf
- Published by
- Thetford
- Retrieved
- 2026-08-28
- File checksum (SHA-1)
0f92a59aad6a3c2f82b241d7ca3b62c1fc7f0ea2
What we have not checked
We can show you that 35804 is a real Thetford number, what Thetford calls it, and which parts lists carry it. Model compatibility has not yet been confirmed. That depends on your model year, build date and what is actually installed, and we do not publish a compatibility claim until we can show it in the manufacturer’s own document.
Current marketplace inventory
Listings from eBay
These results match your search terms. Camper Replacement Parts has not yet confirmed compatibility for this part.
Checking current eBay inventory…
Camper Replacement Parts is not the seller. Price, shipping, stock and item condition are set by the eBay seller and can change at any time. We may earn a commission if you buy through these links.