The Dometic 148 Series toilet base kit is the foundation component for your RV's waste system. This bone-colored base securely mounts your Dometic toilet to the RV floor and connects to the black water tank below. If your toilet rocks, leaks around the base, or you're replacing a damaged mounting assembly, this kit restores a solid, leak-free seal.
Key Features
- Designed specifically for Dometic 148 Series toilets
- Bone color matches original Dometic toilet fixtures
- Includes all mounting hardware and gasket seals
- Prevents leaks and odors at the floor connection point
- Direct replacement for worn or cracked base assemblies
- Easy installation with standard RV tools
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 385310784 |
| Toilet Series | Dometic 148 Series |
| Color | Bone |
| Component Type | Base Kit with Gaskets and Hardware |
Frequently Asked Questions
- Will this base kit fit my Dometic toilet?
- This kit is engineered for Dometic 148 Series toilets only. Check your toilet's model number on the tank or in your RV manual to confirm compatibility before ordering.
- What's included in the base kit?
- The kit includes the base assembly, mounting bolts, rubber gaskets, and sealing washers needed for a complete floor installation. No additional hardware is required for a standard installation.
- How do I know if I need to replace my toilet base?
- Replace the base if you notice water pooling around the toilet, persistent odors coming from under the toilet, the toilet rocking or moving when you sit on it, or visible cracks in the base assembly.
Why Elkhart RV Parts
We specialize in hard-to-find Dometic replacement parts for RV owners who need exact OEM components. Shipping directly from Elkhart, Indiana—the RV capital of the world—we stock genuine Dometic parts and provide expert support to help you identify and install the right component for your rig.
| Brand | Dometic |
|---|---|
| Product type | RV Toilet Base Kit |
| Series | 148 |
| Part number | 385310784 |
| Color | Bone |
| Finish | Bone |
| Compatible models | 310320330510 |
| Operation type | Foot Pedal |
| Includes | Mounting Hardware |
| Part category | OEM Replacement Part |
| Condition | New |
| Application | RV |
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 Genuine, name-brand components made to order — never generic, never outdated.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.