The Dometic 310 gravity-flush RV toilet has a ceramic bowl, full-size plastic seat and a foot-operated flush. This numbered parts drawing separates water-supply components from the seat, ball seal and floor-mount hardware, helping you find an original service number before ordering.
Manufacturer exploded parts diagram
Match a numbered callout on the original drawing to the matching entry below. Open the full document to enlarge small parts and connections.
The full PDF lets you zoom in on the parts and reference numbers.
Open the original manufacturer's illustrated reference (PDF)
Parts by exploded-view callout
Use the exact manufacturer number and description to identify the replacement. Only the entries linked to the existing NewRVParts listings are shown with purchase links.
| Callout | Manufacturer no. | Component | Available product |
|---|---|---|---|
| 1 | 385311641 | Water valve kit | |
| 2 | 385230335 | Vacuum breaker for a hand-spray installation | View product |
| 2 | 385316906 | Vacuum breaker kit without hand spray | View product |
| 3 | 385311164 | Half-inch sealing grommet | |
| 4* | 385319054 | White hand spray with vacuum-breaker kit | View product |
| 5* | 385230319 | Hand-spray mounting bracket | |
| 6 | 385340177 | Bone supply hose | |
| 6 | 385345377 | White supply hose | |
| 7 | 385311646 | White plastic seat and cover kit | View product |
| 7 | 385311647 | Bone plastic seat and cover kit | View product |
| 8 | 385311648 | White seat-bracket covers | |
| 8 | 385311649 | Bone seat-bracket covers | |
| 9 | 385311650 | White seat mounting hardware kit | View product |
| 9 | 385311651 | Bone seat mounting hardware kit | |
| 10 | 385311652 | White toilet mounting hardware and seal kit | View product |
| 10 | 385311653 | Bone toilet mounting hardware and seal kit | View product |
| 11 | 385311654 | White floor mounting cap | |
| 11 | 385311655 | Bone floor mounting cap | |
| 12 | 385311656 | White pedal cover | |
| 12 | 385311657 | Bone pedal cover | |
| 13 | 385311658 | Flush-ball seal | |
| 14* | 385311124 | White hand sprayer and bracket | View product |
Photos of relevant NewRVParts products
These are photographs from the linked NewRVParts listings. They help you recognize the part or complete model; confirm the manufacturer number and kit details on the individual product page.
Confirm the correct component
Dometic's 310 service sheet identifies a different seat from the elongated wooden seat fitted to the 320. Match white versus bone fittings and distinguish the seat-hinge hardware from the floor-mount kit. The optional hand spray uses a different vacuum-breaker configuration than the standard toilet.
The 310 bowl and base are factory sealed. The manufacturer advises against separating them or removing the foot pedal. The water valve and flush-ball seal can be serviced using their replacement-kit instructions, without dismantling the bowl-to-base joint.
Parts pictured in this guide
Select an image for product details, or view the diagrams and parts lists. Match the complete model and part number before ordering.
