The Dometic Flush Ball Seal Kit is an essential replacement component for Dometic 300 and 400 series RV toilets. This kit restores proper sealing and flushing performance when your toilet's ball seal deteriorates, preventing leaks and ensuring reliable operation on the road.
Key Features
- Complete ball seal replacement kit for Dometic 300/400 series toilets
- Restores original flush pressure and sealing integrity
- Prevents water leaks around the flush mechanism
- OEM Dometic genuine part for guaranteed compatibility
- Easy installation—no special tools required
- Extends toilet lifespan and improves reliability
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 385311658 |
| Fits Models | Dometic 300/400 Series RV Toilets |
| Component Type | Flush Ball Seal Kit |
| Manufacturer | Dometic |
| OEM Status | Genuine OEM Part |
Frequently Asked Questions
Q: How do I know if my ball seal needs replacement?
A: Signs include weak flushing pressure, water leaking from the base of the toilet, or visible cracks in the seal. If your 300/400 series toilet isn't holding water or flushing properly, this kit is likely the solution.
Q: Is this kit difficult to install?
A: No. Most RV owners can replace the ball seal in 15-20 minutes using basic tools. The kit includes the seal and installation is straightforward—no special expertise needed.
Q: Will this part work on my Dometic toilet?
A: This kit is designed specifically for Dometic 300 and 400 series toilets. Verify your toilet model before ordering. If you're unsure, contact our expert support team.
Why Elkhart RV Parts
We specialize in hard-to-find Dometic RV replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part we sell is genuine OEM Dometic, ensuring perfect fit and performance. Our expert support team is ready to help you identify and install the right part for your RV.
| Brand | Dometic |
|---|---|
| Product type | Flush Ball Seal Kit |
| Part number | 385311658 |
| Compatible series | 300 Series400 Series |
| Compatible models | 310320400410 |
| Toilet type | RV Toilet |
| Category | Service Parts |
| Function | Flush ball seal replacement |
| Purpose | Restores seal integrity, ensures proper water flow, prevents leaks |
| Installation difficulty | Basic plumbing knowledge required |
| Part classification | OEM Replacement Part |
Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.