The Dometic P100 water pump impeller is the rotating component that moves fresh water throughout your RV's plumbing system. This 2.75" impeller is a direct replacement for Dometic's popular P100 series pumps, commonly found in travel trailers, motorhomes, and fifth wheels. If your water pressure has dropped or your pump is running but not delivering water, a worn impeller is often the culprit.
Key Features
- 2.75" diameter impeller blade design for optimal water displacement
- Direct replacement for Dometic P100 water pump assemblies
- Durable construction designed to handle typical RV water system pressures
- Simple installation—removes and installs with basic hand tools
- Restores full water pressure and flow when original impeller wears out
- OEM Dometic part ensures compatibility and reliability
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 330345 |
| Impeller Diameter | 2.75 inches |
| Pump Model Compatibility | Dometic P100 Series |
| Type | Replacement Impeller |
Frequently Asked Questions
How do I know if my P100 impeller needs replacement?
Common signs include reduced water pressure, the pump running but no water flowing, or unusual grinding noises from the pump. If your pump is several years old and you've noticed declining water pressure, the impeller has likely worn down.
Is this impeller a direct fit for my Dometic P100 pump?
Yes, this is an OEM Dometic part designed specifically for P100 series pumps. However, verify your pump model before ordering. If you're unsure, check your pump housing or owner's manual for the model number.
Can I install this myself, or do I need a technician?
Most RV owners can replace an impeller with basic hand tools and mechanical ability. You'll need to access the pump (usually located under a cabinet or in the basement), drain the system, and remove the pump housing. If you're uncomfortable with plumbing work, a technician can handle it quickly.
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 Dometic stock, backed by our expert support team. When you need a critical component like a water pump impeller, you can trust us to have it in stock and ready to ship.
| Brand | Dometic |
|---|---|
| Product type | Water Pump Impeller |
| Model compatibility | P100 |
| Part number | 330345 |
| Impeller diameter | 2.75 inches |
| Part category | OEM Replacement |
| Application | RV Fresh Water Systems |
| Manufacturer origin | USA |
| Installation | No special tools required |
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.