🔧 What this part is
Sundance J-400 Series Diverter Knob 6540-439. The handle or knob a bather turns; sold on its own because it is the part that breaks.
✅ Check before you order
- The number on the old part should read 6540-439, or the maker’s equivalent.
- Not sure? Send us a photo of the old part and any number on it, and we will tell you whether this is the one.
📌 Also on this listing
Sundance J-400 Series Diverter Knob 6540-439 Diverter Knob, Sundance J-400, Used in 2017+ J-445 & J-435
Additional Information
| Spa Brands | Sundance/Jacuzzi |
Alternate Part Numbers
- SD6540-439


