This water pump impeller for outboard motors from CEF Marine is a spare part for the water and cooling water pump on Yamaha and Mariner 40 hp 2-stroke engines. The primary compatibility indication is model years 1990-1997, and the impeller replaces Yamaha OEM no. 6F5-44352-00 and 6F5-44352-00-00.
The impeller is made of neoprene and has six flexible blades. It uses a key drive, which transfers the rotation from the pump shaft to the impeller. A loose key, gaskets, and other mounting parts are not included.
The variant-specific dimensions are 15.8 mm inner diameter, 69.7 mm outer diameter, and 22.3 mm depth. Check these dimensions along with the engine's original part number, as minor dimensional deviations may occur between different impeller variants.
Compatible engine models
Documented Yamaha compatibility includes the CV40 from 1990 and C40 from 1991-1997, including CV40ELD as well as C40ELRP, C40PLRQ, C40MSHQ, C40ELRQ, C40PLRR, C40MSHR, C40ELRR, C40PLRS, C40MSHS, C40MLHS, C40ELRS, C40PLRT, C40MSHT, C40MLHT, C40ELRT, C40PLRU, C40MSHU, C40ELRU, C40PLRV, C40MSHV, C40ESHV, and C40ELRV. The Yamaha 40A, E40GMH, and 40GWH are also documented as applications for the same OEM number.
The OEM number also appears in the water pump system on the Yamaha EK40GMH from 2015. Year model alone is therefore not sufficient for secure identification; always check the OEM number, engine model, and serial number.
Replaces OEM and spare part numbers
CEF Marine 500352, IMP-500352, and manufacturer code 352. Yamaha: 6F5-44352-00, 6F5-44352-00-00, 676-44352-00, and 676-44352-00-00. OMC, Johnson, and Evinrude: 377230 and 777213. Mercury/Mariner: 47-99971M. Sierra: 18-3088. Mallory: 9-45606.
Related repair kits
The impeller is included in documented Yamaha water pump repair kits 6F6-W0078-00 and 6F5-W0078-A0-00 as well as Sierra 18-3374. Component compatibility depends on the specific engine variant, and this item is supplied as an impeller only.
Always check the engine/drive model and original part number before purchasing.
Important featuresReplacement impeller for Yamaha and Mariner 40 hp 2-stroke outboard motors
Primary year indication: 1990-1997
Inner diameter: 15.8 mm
Outer diameter: 69.7 mm
Depth: 22.3 mm
Six flexible blades
Neoprene construction with key drive
Replaces Yamaha OEM no. 6F5-44352-00
Supplied without key, gaskets, and other accessories
