Marine flexible water pump impeller replacement for Jab pumps, 12 blade spline drive design with brass insert and neoprene rubber, compatible with Jab 17938-0001 and 17938-0003 to restore cooling flow on marine diesel engines

17938-0001 Marine Flexible Water Pump Impeller 1 Unit
✔️ 12 blade spline drive impeller with brass insert

This is a marine flexible water pump impeller used in engine raw water cooling systems where steady flow and durability matter. Pack size is 1 replacement impeller made from neoprene rubber with a brass hub to handle saltwater use and long running hours.

✅ Pack size: 1 impeller
✅ Impeller type: flexible marine water pump impeller
✅ Blade count: 12 blades
✅ Drive type: spline drive
✅ Outer diameter: 95mm
✅ Impeller width: 95mm
✅ Shaft diameter: 25mm
✅ Material: neoprene rubber with brass insert
✅ Common replacement references: 17938-0001, 17938-0003, 8326-01, 500163
✅ Used in marine pump systems for diesel engine cooling

💡 Why is a flexible marine water pump impeller critical for engine cooling systems?
It continuously moves raw water through the pump to regulate engine temperature.

• Flexible vanes maintain flow even as pump housings expand with heat

• Brass insert prevents hub wear and slipping under load

• Neoprene rubber resists saltwater and heat breakdown

• Proper replacement helps avoid overheating and pump damage