Thetford · Catalog Reference
Thetford 636751
Control Assy-Optical/2118 Series
636751 is the Thetford part number for the control assy-optical/2118 series. It is printed in Thetford’s own parts documentation, which we hold a copy of and link below.
Current eBay listings for Thetford 636751
Search eBay for Thetford 636751eBay 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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Thetford says to use 637081 instead
Thetford marks this number with “USE 637081” on its own parts list, which is the manufacturer telling you 637081 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: 637081
Which parts lists carry this number
It appears on the parts list for the 2118 Series.
Where this comes from
- Document
- Thetford parts list for 2118 SeriesPL_2118_637110_022025.pdf
- Published by
- Thetford
- Retrieved
- 2026-08-28
- File checksum (SHA-1)
9e1199a334ca2e63c02f6952e9b7ff71703ec017
What we have not checked
We can show you that 636751 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 That depends on your model year, build date and what is actually installed, and we do not publish a compatibility claim until we can show it in the manufacturer’s own document.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.