Description
Restore proper water flow and reliable flushing with the Dometic 385311545 12V Water Valve Kit. This genuine Dometic OEM replacement valve controls the flow of fresh water into compatible Dometic VacuFlush toilets during the flush cycle. If your toilet is not filling properly, continues to run water, leaks, or fails to introduce water into the bowl, replacing the water valve is often the solution.
Designed for 12-volt systems, this replacement kit is compatible with a wide range of Dometic VacuFlush marine and RV toilets, including the 4300 and 4400 Series.
Special Order – Estimated 7–14 Business Day Lead Time
Please note: This is a special order item.
- Estimated lead time: 7–14 business days
- Lead times may vary based on Dometic manufacturing and availability.
- Special order items are non-cancelable and non-returnable once the order has been placed with the manufacturer, except in the case of a warranty issue or shipping damage.
- Orders containing both in-stock and special-order items may ship separately or be held until all items are available.
Features & Benefits
- Genuine Dometic OEM replacement part
- 12-Volt water valve kit
- Controls fresh water flow during the flush cycle
- Restores proper bowl fill and flushing performance
- Direct replacement for failed or leaking water valves
- Helps eliminate leaks, poor bowl fill, and continuous water flow
- Manufactured to original Dometic specifications
- Designed for long service life
- Fits numerous Dometic VacuFlush marine and RV toilet models
Fits These Dometic Toilet Models
4300 Series
- 4300 Series
4400 Series
- 4400 Series
Dometic VacuFlush Models
- 4509
- 4548
- 4606
- 4609
- 4648
- 4709
- 4748
- 4806
- 4809
- 4848
Common Problems This Part Fixes
- Toilet will not fill with water
- Weak or inconsistent bowl fill
- Water continues running after flush
- Water valve leaking
- No water enters bowl during flush
- Intermittent flushing performance
Signs Your Water Valve May Need Replacement
You may need a new water valve if:
- The bowl doesn't receive water during a flush.
- Water continues flowing after the flush cycle ends.
- The valve leaks externally.
- The toilet flushes but adds little or no water.
- The valve no longer opens or closes properly.
What's Included
- Genuine Dometic 12V Water Valve Kit
- OEM replacement valve assembly
- Installation hardware/seals (as supplied by Dometic)
Installation Overview
- Turn off the RV or boat water supply.
- Disconnect 12V power to the toilet.
- Remove the existing water valve.
- Install the new OEM valve and reconnect the water line.
- Restore water and power, then test for proper operation and leaks.
Professional installation is recommended if you're unfamiliar with VacuFlush sanitation systems.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | Dometic |
| Part Number | 385311545 |
| Product Type | Water Valve Kit |
| Voltage | 12 Volt DC |
| OEM | Yes |
| Application | VacuFlush Toilet Water Supply Valve |
Frequently Asked Questions
Is this a genuine Dometic replacement part?
Yes. The 385311545 is a genuine OEM Dometic water valve kit.
What does this valve do?
The water valve opens during the flush cycle to allow fresh water into the toilet bowl and then closes when the cycle is complete.
Will this fix a toilet that won't add water?
If the water valve has failed, this kit is often the correct repair. Other issues such as wiring, a controller, fuse, or inadequate water pressure should also be checked if problems persist.
Does this fit both marine and RV VacuFlush toilets?
Yes. This valve is used on many compatible Dometic VacuFlush toilets installed in both marine and RV applications.
Is this a complete rebuild kit?
No. This kit replaces only the 12V water valve assembly. Other service parts are sold separately.
