Description
DOMETIC Impeller M18-8923 for Marine Pumps | Boat Supply Store
Maintain optimal engine cooling efficiency by replacing your worn seawater pump impeller. This DOMETIC M18-8923 impeller is constructed from durable neoprene, featuring a 3-1/2 inch outer diameter and a 1-1/4 inch shaft bore. Essential for preventing engine overheating on coastal cruisers operating in saltwater environments.
Key Features
- Durable neoprene construction resists wear and tear.
- Efficient cooling for marine engine systems.
- Direct replacement for specific DOMETIC pump models.
- Prevents engine overheating and costly repairs.
- Reliable performance in saltwater applications.
- Easy installation with basic tools.
- Critical for maintaining water flow integrity.
- Ensures consistent pump operation.
Specifications
| Product Specifications | |
|---|---|
| Outer Diameter | 3-1/2 inches |
| Shaft Bore Diameter | 1-1/4 inches |
| Material | Neoprene |
Who This Is For
Boat owners requiring a specific replacement impeller for their DOMETIC seawater pump system. Ideal for maintaining the cooling integrity of inboard marine engines during regular operation.
How It Compares
| Feature | DOMETIC Impeller M18-8923 for Marine Pumps | Johnson Pump Impeller |
|---|---|---|
| Material | Neoprene | Rubber |
| Outer Diameter | 3-1/2 inches | — |
| Shaft Bore Diameter | 1-1/4 inches | 1 inch |
Common Concerns Answered
How often should I replace my boat's impeller?
It is recommended to inspect and replace your marine engine's impeller annually or every 100-200 operating hours, whichever comes first, to prevent catastrophic engine failure due to overheating.
What happens if my impeller fails?
Impeller failure leads to a loss of water flow, causing your engine's cooling system to become ineffective, resulting in severe overheating and potential engine damage.
Can I use a generic impeller if mine is worn?
Using a generic or incorrect impeller can lead to premature wear, improper fit, and inadequate water flow, potentially damaging your pump and engine. Always use the specified OEM or equivalent replacement for optimal performance and reliability.
Frequently Asked Questions
What are the exact dimensions of this DOMETIC impeller?
This DOMETIC M18-8923 impeller has an outer diameter of 3-1/2 inches and a shaft bore diameter of 1-1/4 inches.
What material is this impeller made from?
The impeller is constructed from durable neoprene, a synthetic rubber known for its resistance to heat, oil, and seawater.
Is this impeller suitable for freshwater cooling systems?
While primarily designed for raw water (seawater) cooling systems due to its material composition, it can be used in freshwater systems if specified for the pump model.
What specific DOMETIC pump models does this impeller fit?
This impeller is designed as a direct replacement for specific DOMETIC seawater pump models; consult your pump's service manual to confirm compatibility with SKU M18-8923.
How difficult is it to install this impeller?
With a difficulty rating of 1, this impeller installation is considered straightforward and can typically be completed with basic hand tools by a boat owner with moderate mechanical aptitude.
