The Dometic toilet seal kit is an essential replacement component for maintaining a watertight seal on your RV's Dometic 300, 310, and 320 series toilets. Over time, seals wear out from regular use and temperature fluctuations, leading to leaks and odors. This OEM seal kit restores your toilet's performance and prevents costly water damage to your RV's holding tanks and flooring.
Key Features
- OEM genuine Dometic replacement seal designed for 300/310/320 series toilets
- Prevents leaks and odors from deteriorating seals
- Easy installation—no special tools required
- Durable rubber and polymer construction withstands RV water systems and chemicals
- Extends toilet lifespan and maintains proper tank operation
- Includes all seals needed for complete toilet seal replacement
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 385310905 |
| Compatible Models | Dometic 300, 310, 320 Series Toilets |
| Material | OEM Rubber and Polymer Seals |
| Installation Type | Direct Replacement |
| Warranty | OEM Manufacturer Coverage |
Frequently Asked Questions
Q: How do I know if my toilet seals need replacement?
A: Common signs include water leaking from the toilet base, persistent odors even after tank treatment, or visible cracks in rubber seals during inspection. If your toilet is over 5-7 years old and showing these symptoms, replacement is recommended.
Q: Can I install this seal kit myself?
A: Yes. Most RV owners can complete this installation in 30-45 minutes using basic tools. The kit comes with installation guidance, though consulting your Dometic manual specific to your model is recommended for detailed steps.
Q: Will this kit work on my 310 toilet if I have aftermarket upgrades?
A: This OEM kit is designed for standard Dometic 300/310/320 series toilets. If you have significant aftermarket modifications, verify compatibility with the product specifications or contact our expert support team before ordering.
Why 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, ensuring perfect fit and long-term reliability. Our expert support team is ready to help you find the exact seal kit your toilet needs.
| Brand | Dometic |
|---|---|
| Product type | Toilet Seal Kit |
| Part number | 385310905 |
| Compatible series | 300/310/320 Series |
| Compatible models | Dometic 300, 310, 311, 320 |
| Bowl type | Porcelain |
| Contents | Seal and valve assembly kit with gaskets and seals |
| Part category | OEM Replacement |
| Installation difficulty | Basic |
| Tools required | Basic hand tools |
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.