The Johnson 10-35271-01 is from the F4B family of pumps.

It is designed to be flange mounted to the engine timing cover.

Popular fitments for this Johnson pump include the Thornycroft 60 and Thornycroft 80 engines, as well as some Mitsubishi based marine engines.

Inlet / Outlet: 3/8" BSP Female

Replacement Impeller: 09-810B

Mounting: Flange Mount