Johnson Pump F4B-9 Impeller Pump OEM Flange Mount for Raw Water and Freshwater Applications

F4B-9 Impeller Pump OEM - Flange Mount

Flexible impeller pumps, F-series, provide an efficient solution to most raw water pumping needs. The primary advantage of a flexible impeller pump is its self-priming ability. As the vanes of the impeller are depressed and rebound, they create their own vacuum drawing fluid into the pump. A dry pump can lift the water up to as much as 3 meters. Thus a flexible impeller pump being used for engine cooling needs not to be located below the water line or manually primed. An added feature of flexible impeller pumps is that they can pass fairly large solids without clogging or damaging the pump. This reduces the need for filtering the incoming fluid. For general raw or freshwater applications, the standard long-lasting neoprene rubber impeller is used. Both the impeller and the seals depend upon the water for lubrication and will soon burn out if run dry.

Features:

• Flange mount for engines such as: Panda 12000 NE PMS Kubota, Panda 6000 ND PMS Kubota, Panda 8000 NE PMS Kubota, Panda 9000 ND PMS Kubota
• A general feature of all flexible impeller pumps is that they cannot be permitted to run dry for more than 30 seconds
• Wearing parts are easily replaceable for all standard models

Applications:

• Engine cooling raw water handling
• Freshwater handling

Specifications:

• Port size: (inch) 3/4" hose
• Mount Type: Flange
• CAM: Full 1/1
• Lip seal
• Material: Bronze

Cooling Capacity:

The required output of the cooling pump raw water as well as fresh water handling is related to:

• Engine type: (gasoline or diesel)
• Type of cooling system (size of heat exchanger)
• Water cooled engine oil, reverse gear, exhaust system

The Johnson Pump F4B-9 Impeller Pump OEM with flange mount is designed for reliable raw water and freshwater handling in various engine cooling systems. Its flexible impeller design enables self-priming functionality, allowing the pump to lift water up to approximately 10 feet without manual priming or submergence below the waterline. This feature makes it ideal for engines where space constraints or setup simplicity are priorities. Constructed from durable bronze, the pump ensures longevity in demanding environments, with wear parts such as seals and impellers easily replaceable to facilitate maintenance and extend service life. The pump's full 1/1 cam and lip seal design provide a secure seal and smooth operation, reducing the risk of leaks and operational failures.