Looking for replacement parts for your Dometic/Sealand Masterflush 8600 series tall model toilets with new discharge type? 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. 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!

| Item Number | Part Number | Item Description |
|---|---|---|
| 1 | 385311618 | Seat/Cover Slow-Close Kit - White |
| 2 | 385312036 | 8600 Tall Bottom Discharge Bowl Kit - White |
| 3 | 385111164 | ½” Sealing Grommet |
| 4 | 385880073 | Check Valve Replacement |
| 5 | 385880075 | Water Valve Kit – 24V DC (includes items 3 and 4) |
| 6 | 385311547 | Water Supply Hose Replacement |
| 7 | 385311463 | Bowl Mounting Hardware Kit |
| 8 | 385880085 | Masterflush Control Module 12/24V DD (DBL) |
| 9 | 385312038 | Discharge Tube (includes anti-siphon) |
| 10 | 385880070 | Discharge Tube Valve Adapter |
| 11 | 385311620 | 1-1/2” Check Valve |
| 12 | 385311315 | 1-1/2” Pump Outlet Fitting |
| 13 | 385880072 | 1” Valve Adapter |
| 14 | 385880071 | 1-1/2” Valve Adapter Elbow |
| 15 | 385880069 | Motor Macerator Assembly – 24V DC |
| 16 | 385880067 | Bowl Outlet Elbow |
| 17 | 385880083 | Motor/Pump Mounting Strap |