This CEF Marine impeller for Yamaha/Mariner outboard motors is a flexible water pump impeller for the engine's cooling water pump. The variant is intended for documented 60, 75, 80, 85, and 90 HP 2-stroke Yamaha and Mariner outboard motors.
The impeller features six flexible blades and is manufactured from neoprene. It measures 20.1 mm in inner diameter, 58 mm in outer diameter, and 30 mm in width. The hub uses a keyway drive to transfer rotation from the pump shaft.
The CEF manufacturer number is 500323, while the shortened manufacturer code is 323. The impeller corresponds to original Yamaha references 688-44352-03 and 688-44352-03-00. Gaskets, keys, pump housings, and other mounting parts are not indicated as included.
Compatible engine models
Documented Yamaha applications include 60 HP (2004–2005), 85 HP (1985), 85E (1989–1990), 90 HP (1984–2005), B90 (1997–1999), C75 (1994–1999), C80 (1997), C85 (1989–1997), C90 (1997–2001), CV85 (1989–1991), E75 (1995–2000), and P75 (1996–1999). Mariner compatibility is documented generally for 60–90 HP, but without a specific model and year list. Compatibility with 4-stroke engines is not specified.
OEM and cross-references
The impeller replaces Yamaha OEM 688-44352-03 and 688-44352-03-00. Documented aftermarket cross-references include Sierra 18-3070, Mallory 9-45603, and GLM 89920.
Related service components
Yamaha water pump kits 692-W0078-A0-00 and 692-W0078-01-00 are documented with the same OEM impeller. Adjacent components may include, among others, key 90280-04M04-00, water pump gasket 688-44315-A0-00, cartridge plate 688-44323-00-00, and cartridge gasket 688-44324-A0-00. The choice depends on the specific engine and gear housing variant.
Always check the engine/drive model, measurements, and original part number before purchasing.
Key featuresWater pump impeller for Yamaha/Mariner outboard motors
For 60, 75, 80, 85, and 90 HP 2-stroke engines
Six flexible blades
Made of neoprene
Inner diameter: 20.1 mm
Outer diameter: 58 mm
Width: 30 mm
Keyway drive
Yamaha OEM: 688-44352-03 / 688-44352-03-00
CEF manufacturer number: 500323
