321 & 321S Gravity Flush Parts
Dometic/Sealand 321 & 321S Model Gravity Flush Toilet Parts Diagram
Looking for replacement parts for your Dometic/Sealand 321 & 321S model gravity flush toilet? Refer to the list below to find the part number you need.
As a Dometic Master Distributor, Environmental Marine carries a full line of replacement parts for Dometic/Sealand marine toilets and RV toilets. If you can’t find the part you’re looking for in our online store, contact our team and we’ll track it down for you!
Dometic/Sealand 321 & 321S Model Gravity Flush Toilet Replacement Parts List
| ITEM | PART NO. | DESCRIPTION |
| 1 | 385311650 | Seat Mounting Hardware – White |
| 1 | 385311651 | Seat Mounting Hardware – Bone |
| 2 | 285311863 | 320 Seat/Cover Replacement – White (includes item 1) |
| 2 | 385311864 | 320 Seat/Cover Replacement – Bone (includes item 1) |
| 3 | 385311658 | Flush Ball Seal |
| 4 | 385311652 | Mounting Hardware/Seal – White (includes Item 5) |
| 4 | 385311653 | Mounting Hardware/Seal – Bone (includes Item 5) |
| 5 | 385311654 | Floor Bolt Cap – White |
| 5 | 385311655 | Floor Bolt Cap – Bone |
| 6 | 385311641 | Water Valve Kit |
| 7 | 385311937 | Bowl Supply Hose (includes mounting clamps) |
| 8 | 385311164 | 1/2” Sealing Grommet |
| 9 | 385230335 | Vacuum Breaker Kit for Sprayer Option (includes Item 8) |
| 10 | 385311124 | Hand Sprayer – White (includes mounting bracket)* |
| 11 | 385319054 | Hand Spray Kit w/Vac Breaker – White (includes items 8, 9, 10)* |
*Items 10 & 11 are optional accessories; not provided with every model.