Osculati 16.194.27 Replacement Impeller (CEF 178)

Product Description

12-blade neoprene impeller for Sherwood raw water pumps. Spline drive, 14.4mm shaft bore. Supplied with gasket.

The 57mm OD and 48.5mm length place this impeller in the mid-range of the Sherwood line-up — larger than the compact G-series pumps and shorter than the deeper-bore units used on higher-displacement engines. The spline drive shaft interface is the critical fitment detail to confirm before ordering; this is not interchangeable with the keyed or pin-drive versions of superficially similar-looking impellers in the Sherwood range.

Annual replacement is recommended as standard practice regardless of apparent condition. Neoprene blades fatigue progressively under load and can fail without visible warning; replacing on schedule is substantially less disruptive than dealing with a cooling failure at sea.

Specifications

•    Outside diameter: 57mm
•    Length: 48.5mm
•    Shaft bore: 14.4mm (spline drive)
•    Blades: 12
•    Material: Neoprene
•    Supplied with: gasket

OEM cross-reference

CEF 500178 · Sherwood kit number: TBC — check pump housing markings

Engine / pump application

Sherwood inboard raw water pumps — specific pump models and engine application list to be confirmed from pump housing. Please contact us with your pump model number before ordering if unsure.