Johnson Pump impeller 1027BT, Ø57.1 mm – with internal thread

Johnson Pump impeller 09-1027BT-1, type 1027BT, is a flexible impeller for Johnson F5 cooling water pumps and bilge pumps. The impeller circulates cooling water through the system and is therefore important for keeping the engine at the correct temperature. This BT version has internal thread in the hub, making the impeller easier to remove with a suitable Johnson impeller puller. This helps prevent insufficient cooling water flow, overheating and damage to the pump or engine caused by a worn impeller.

Main features and benefits:

Impeller for F5 pump: Suitable for Johnson Pump F5B cooling water and bilge pumps.
Type 1027BT: BT version with internal thread for easy removal.
Diameter 57.1 mm: For pumps where this impeller size is specified.
Width 31.5 mm: Correct dimensions for proper installation in the pump.
Shaft diameter 16 mm: Suitable for pumps with this shaft connection.
Spline drive with 12 teeth: For drive via a toothed pump shaft.
12 blades: Ensures reliable water displacement in the cooling water system.
Neoprene version: Suitable for cooling with fresh and salt water.
Replaces multiple references: Also used as an alternative for Johnson 09-1027B-1 and various Jabsco, Volvo Penta, Yanmar and Vetus references.
Prevents overheating: Important maintenance part for reliable cooling water circulation.

Useful for installation and removal

For easy removal of Johnson Pump impellers 09-812BT-1 and 09-1027BT, you can use the Johnson Pump impeller puller. This allows the impeller to be removed from the pump in a controlled way without unnecessary strain on the pump.