Water Pump Impeller 432941 18-3104 Replacement for Marine Outboard Cooling System

This water pump impeller is designed for use in marine outboard cooling systems. It corresponds to model number 432941 and cross-references Sierra 18-3104. The impeller features 3 vanes and has an outer diameter of 78.13mm, internal hub diameter of 19.11mm, and a depth of 25.07mm. It is suitable for outboard motors requiring precise impeller specifications for proper water flow and cooling system function.Compatible applications include 35HP models (1992–1994), 40HP, 48HP, and 50HP models (1989–1994). This part replaces OEM numbers 0432941, 0777825, 432941, 777825, and also matches Sierra P/N 18-3104, CEF P/N 500372, Mallory P/N 9-45204, and additional OEM references 765350, 437059, 766433.Package includes one impeller. Please refer to the product specifications before ordering for proper compatibility.Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.

• Replacement impeller compatible with specified outboard motor models including 35HP, 40HP, 48HP, and 50HP from 1989–1994
• Exact fit for impeller model 432941 and cross-reference number 18-3104 to maintain water flow in cooling systems
• Designed with 3 vanes and dimensions: outer diameter 78.13mm, hub diameter 19.11mm, depth 25.07mm
• Engineered for marine environments to support consistent engine temperature regulation during operation
• Direct replacement part for water pump repair in outboard cooling system maintenance