The Dometic RV toilet bowl supply hose kit delivers water from your RV's freshwater system directly to your toilet bowl, ensuring reliable flushing performance. This 9.75" hose assembly is an essential replacement part for Dometic gravity-flush and vacuum toilets that have worn, cracked, or deteriorated supply lines.
Key Features
- 9.75" length sized for standard Dometic toilet installations
- Durable vinyl construction resists UV damage and temperature fluctuations
- Pre-assembled with factory connectors for easy installation
- Compatible with Dometic gravity-flush and vacuum toilet models
- Direct OEM replacement—no modifications needed
- Prevents water leaks and maintains bowl fill performance
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 385311869 |
| Hose Length | 9.75" |
| Material | Vinyl tubing |
| Connection Type | Push-fit connectors |
| Application | Dometic RV toilets |
| OEM Status | Genuine Dometic replacement part |
Frequently Asked Questions
- How do I know if my supply hose needs replacement?
- Look for visible cracks, splits, or discoloration in the hose. If your toilet bowl isn't filling properly or you notice water pooling under the toilet, the supply hose may be compromised. Any kinks or hardening indicate it's time to replace.
- Will this hose fit my Dometic toilet model?
- This 9.75" kit is designed for standard Dometic gravity-flush and vacuum toilet models. Check your toilet's documentation or compare the hose length to confirm compatibility. If unsure, contact our expert support team with your RV model and toilet type.
- Is installation difficult?
- No. The pre-assembled hose features simple push-fit connectors that connect to your freshwater inlet valve and toilet bowl inlet. Most RV owners complete the swap in under 10 minutes without special tools.
Why Choose Elkhart RV Parts
We specialize in hard-to-find Dometic replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every part we sell is genuine OEM Dometic stock, backed by our expert support team ready to help you identify and install the right component for your rig.
| Brand | Dometic |
|---|---|
| Product type | RV Toilet Bowl Supply Hose |
| Part number | 385311869 |
| Length | 9.75 inches |
| Oem status | Genuine OEM |
| Compatible series | Dometic 300Dometic 310Dometic 320Dometic 500Dometic 510Dometic 520 |
| Toilet type compatibility | Gravity toiletsVacuum toilets |
| Connection type | Direct-fit |
| Key features | Leak-free water supplySecure attachment pointsReplacement for cracked or damaged hoses |
| Category | Service Parts |
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.

