Thetford 33317
Blade Spring
Thetford 33317 is the blade spring for the Aqua-Magic IV Hand Flush and Aqua-Magic IV Pedal Flush. The spring that returns the blade to its closed position. Thetford lists it for Aqua-Magic IV Hand Flush and Aqua-Magic IV Pedal Flush. It is item 6 and 7 depending on the list.
Which models this fits
Aqua-Magic IV Hand Flush
Verified against Thetford Parts List, Aqua-Magic IV Hand Flush (Rev. C).
Item 6 on this parts list.
Aqua-Magic IV Pedal Flush
Verified against Thetford Parts List, Aqua-Magic IV Pedal Flush (Rev. D).
Item 7 on this parts list.
How to tell which one you have
Find item 6 or 7 on your model’s parts diagram — that callout is this part. Check the model on the data plate reads Aqua-Magic IV Hand Flush or Aqua-Magic IV Pedal Flush.
Is this part still current?
Yes. Thetford still lists 33317 on its current parts list.
Check this before you order
- Confirm your toilet is a Aqua-Magic IV Hand Flush or a Aqua-Magic IV Pedal Flush.
- Ignore listing titles that claim one part covers several models unless the manufacturer's parts lists agree.
Current marketplace inventory
Listings from eBay
We verified the part above from manufacturer documents. The listings below are current eBay inventory, and eBay sellers set their own titles, prices and shipping.
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.
Where our information comes from
We work from the manufacturer’s own documents. We have not installed this part and we do not test parts in a shop.
- Thetford Parts List, Aqua-Magic IV Hand Flush (Rev. C). Published by Thetford.
- Thetford Parts List, Aqua-Magic IV Pedal Flush (Rev. D). Published by Thetford.
Last checked 2026-08-29.