310 white — 302310081Dometic 310 RV Toilet Parts & Exploded Diagram
The Dometic 310 Series RV toilet uses a foot-operated gravity flush and a ceramic bowl. Its flush-ball seal, water valve, vacuum breaker, seat and mounting hardware can be identified individually on the numbered Dometic drawing below. Match the original toilet model and component number before ordering.
View Available Parts With Photos
310 exploded parts diagram
Open the manufacturer's numbered exploded drawing (PDF). On a phone, open the PDF directly to zoom in on each callout.
View the complete numbered drawing here
Parts by factory diagram number
| No. | Dometic part number | Part description |
|---|---|---|
| 1 | 385311641 | Water valve kit |
| 2 | 385230335 / 385316906 | Vacuum breaker with hand-spray connection / standard vacuum breaker; includes item 3 |
| 3 | 385311164 | Half-inch sealing grommet |
| 4 | 385319054 | White vacuum breaker and spray connection kit (optional) |
| 5 | 385230319 | Hand-sprayer mounting bracket (optional) |
| 6 | 385340177 / 385345377 | Supply hose, bone / white |
| 7 | 385311646 / 385311647 | Plastic seat and cover, white / bone; includes items 8 and 9 |
| 8 | 385311648 / 385311649 | Seat bracket covers, white / bone |
| 9 | 385311650 / 385311651 | Seat mounting hardware, white / bone |
| 10 | 385311652 / 385311653 | Floor mounting hardware, white / bone; includes item 11 |
| 11 | 385311654 / 385311655 | Floor mounting caps, white / bone |
| 12 | 385311656 / 385311657 | Pedal cover cap, white / bone |
| 13 | 385311658 | Flush-ball seal |
| 14 | 385311124 | White hand-sprayer kit (optional) |
Which part should you check?
Bowl water disappearing: inspect the 385311658 flush-ball seal at the bowl outlet. Water still flowing: inspect the 385311641 water valve and pedal operation. Loose seat: match the white or bone 310 seat assembly and its mounting hardware. A floor leak calls for inspection of the floor connection rather than the bowl seal.
310 model identification
310 white — 302310081
310 bone — 302310083The related Dometic 320 has a different seat assembly and footprint. Parts that are shared by both series still need to be matched by their exact manufacturer number. Shut off the incoming water before servicing the valve or removing the toilet; follow the manufacturer's repair instructions.
Compare Dometic 300, 310 and 320 toilets by photo and dimensions to check bowl material, seat shape and installation clearances before choosing parts.
Dometic 310 parts with photos
Choose the pictured part to open its UsedRVParts listing. The small number below each image refers to the factory exploded drawing.
Flush-ball seal385311658Diagram position 13. View part
Water valve module385311641Diagram position 1. View part
Standard vacuum breaker385316906Diagram position 2. View part
White plastic seat and cover385311646Diagram position 7. View part
Bone plastic seat and cover385311647Diagram position 7. View part
White floor mounting kit385311652Diagram position 10. View part
Bone floor mounting kit385311653Diagram position 10. View part
White seat mounting hardware385311650Diagram position 9. View part
Other parts: vacuum breakers and optional hand-spray components
Hand-spray fittings differ from the standard arrangement. Use the exact part listed for the installed configuration.
Hand-spray vacuum breaker385230335Diagram position 2. View part
Hand-spray vacuum breaker kit385319054Diagram position 4. View part
Optional white hand sprayer385311124Diagram position 14. View part
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