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Water Pump Impeller OMC 432941
Description
Function and Technical Context
The water pump impeller is the key rotating component within the raw water cooling system of Johnson and Evinrude outboard engines. Manufactured from flexible rubber, its blades draw water from the outside toward the internal engine passages, ensuring that the block and cylinder head remain at safe operating temperature. A deteriorated impeller drastically reduces cooling flow rate, which can lead to severe overheating, cylinder head gasket damage and even complete engine failure. This component operates under demanding conditions of abrasion, heat and continuous pressure, so its condition is decisive for the reliability of the complete propulsion system. Compatible with OMC references 432941, 0432941 and 0765350, and equivalent to Mercury/Mariner/MerCruiser reference 878838.
When to Replace This Part?
The clearest symptoms of a worn impeller are the temperature alarm activated, absence or reduction of cooling water discharge from the outlet fitting and progressive engine overheating during navigation. It is recommended to replace the impeller every 200-300 hours of operation or, at minimum, every two boating seasons, regardless of its visual appearance, since the rubber blades lose elasticity and efficiency before visibly breaking. Changing the impeller preventively at each seasonal service is the most economical measure to avoid serious breakdown offshore.
Compatible Johnson/Evinrude Engines
| Series | Models |
|---|---|
| E40 | E40ECEC 1989, E40EEIA 1991, E40EENJ 1992, E40EENM 1992, E40EERE 1994, E40EESR 1990, E40EETB 1993, E40ELCEC 1989, E40ELEIA 1991, E40ELENJ 1992, E40ELENM 1992, E40ELERE 1994, E40ELESR 1990, E40ELETB 1993, E40RCEC 1989, E40REIA 1991, E40RENM 1992, E40RERE 1994, E40RESR 1990, E40RETB 1993, E40RLCEC 1989, E40RLEIA 1991, E40RLENM 1992, E40RLERE 1994, E40RLESR 1990, E40RLETB 1993, E40TECEC 1989, E40TEEIA 1991, E40TEENJ 1992, E40TEENM 1992, E40TEERE 1994, E40TEESR 1990, E40TEETB 1993, E40TELCEC 1989, E40TELEIA 1991, E40TELENJ 1992, E40TELENM 1992, E40TELERE 1994, E40TELESR 1990, E40TELETB 1993, E40TLCEC 1989, E40TLEIA 1991, E40TLENJ 1992, E40TLENM 1992, E40TLERE 1994, E40TLESR 1990, E40TLETB 1993, E40TLETF 1993, E40TTLCEC 1989, E40TTLEIA 1991, E40TTLENM 1992, E40TTLERE 1994, E40TTLESR 1990, E40TTLETB 1993, E40TTLETF 1993 |
| E48 | E48ESLCER 1989, E48ESLEIM 1991, E48ESLENB 1992, E48ESLERD 1994, E48ESLESA 1990, E48ESLETE 1993 |
| E50 | E50BECEC 1989, E50BEEIA 1991, E50BEENJ 1992, E50BEENM 1992, E50BEERE 1994, E50BEESR 1990, E50BEETB 1993, E50BELCEC 1989, E50BELEIA 1991, E50BELENJ 1992, E50BELENM 1992, E50BELERE 1994, E50BELESR 1990, E50BELETB 1993, E50JEIA 1991, E50JENJ 1992, E50JENM 1992, E50JERE 1994, E50JETB 1993, E50RNLIA 1990, E50RNLIB 1992, E50TELCEC 1989, E50TELEIA 1991, E50TELENM 1992, E50TELERE 1994, E50TELESR 1990, E50TELETB 1993, E50TLCEC 1989, E50TLEIA 1991, E50TLENJ 1992, E50TLENM 1992, E50TLERE 1994, E50TLESR 1990, E50TLETB 1993, E50TLETF 1993 |
| J40 | J40ECEC 1989, J40EEIA 1991, J40EENJ 1992, J40EENM 1992, J40EERE 1994, J40EESR 1990, J40EETB 1993, J40ELCEC 1989, J40ELEIA 1991, J40ELENJ 1992, J40ELENM 1992, J40ELERE 1994, J40ELESR 1990, J40ELETB 1993, J40RCEC 1989, J40REIA 1991, J40RENM 1992, J40RERE 1994, J40RESR 1990, J40RETB 1993, J40RLCEC 1989, J40RLEIA 1991, J40RLENM 1992, J40RLERE 1994, J40RLESR 1990, J40RLETB 1993, J40TECEC 1989, J40TEEIA 1991, J40TEENJ 1992, J40TEENM 1992, J40TEERE 1994, J40TEESR 1990, J40TEETB 1993, J40TELCEC 1989, J40TELEIA 1991, J40TELENJ 1992, J40TELENM 1992, J40TELERE 1994, J40TELESR 1990, J40TELETB 1993, J40TLCEC 1989, J40TLEIA 1991, J40TLENJ 1992, J40TLENM 1992, J40TLERE 1994, J40TLESR 1990, J40TLETB 1993, J40TLETF 1993, J40TTLCEC 1989, J40TTLEIA 1991, J40TTLENM 1992, J40TTLERE 1994, J40TTLESR 1990, J40TTLETB 1993, J40TTLETF 1993 |
| J48 | J48ESLCER 1989, J48ESLEIM 1991, J48ESLENB 1992, J48ESLERD 1994, J48ESLESA 1990, J48ESLETE 1993 |
| J50 | J50BECEC 1989, J50BEEIA 1991, J50BEENJ 1992, J50BEENM 1992, J50BEERE 1994, J50BEESR 1990, J50BEETB 1993, J50BELCEC 1989, J50BELEIA 1991, J50BELENJ 1992, J50BELENM 1992, J50BELERE 1994, J50BELESR 1990, J50BELETB 1993, J50JEIA 1991, J50JENJ 1992, J50JENM 1992, J50JERE 1994, J50JETB 1993, J50TELCEC 1989, J50TELEIA 1991, J50TELENM 1992, J50TELERE 1994, J50TELESR 1990, J50TELETB 1993, J50TLCEC 1989, J50TLEIA 1991, J50TLENJ 1992, J50TLENM 1992, J50TLERE 1994, J50TLESR 1990, J50TLETB 1993, J50TLETF 1993 |
| Otros | MISCELLANEOUS 1992, MISCELLANEOUS 1993, MISCELLANEOUS 1994 |
| TE40 | TE40ELCEC 1989, TE40ELEIA 1991, TE40ELENJ 1992, TE40ELENM 1992, TE40ELESR 1990, TE40ELETB 1993, TE40TELESF 1990, TE40TELESR 1990 |
| TE48 | TE48ESLETE 1993 |
| TE50 | TE50TLCEC 1989, TE50TLESF 1989, TE50TLESF 1990, TE50TLESR 1990 |
| TJ40 | TJ40ELCEC 1989, TJ40ELEIA 1991, TJ40ELENJ 1992, TJ40ELENM 1992, TJ40ELESF 1990, TJ40ELESR 1990, TJ40ELETB 1993, TJ40TELESF 1990, TJ40TELESR 1990 |
| TJ48 | TJ48ESLETE 1993 |
| TJ50 | TJ50TLCEC 1989, TJ50TLESF 1989, TJ50TLESF 1990, TJ50TLESR 1990 |
| VE40 | VE40EEIA 1991, VE40EENJ 1992, VE40EENM 1992, VE40EESR 1990, VE40EETB 1993, VE40ELEIA 1991, VE40ELENJ 1992, VE40ELENM 1992, VE40ELESR 1990, VE40ELETB 1993, VE40TELEIA 1991, VE40TELENJ 1992, VE40TELENM 1992, VE40TELESR 1990, VE40TELETB 1993, VE40TLEIA 1991, VE40TLENJ 1992, VE40TLENM 1992, VE40TLESR 1990, VE40TLETB 1993, VE40TLETF 1993 |
| VE48 | VE48ESLCER 1989, VE48ESLENB 1992, VE48ESLESA 1990, VE48ESLETE 1993 |
| VE50 | VE50BEEIA 1991, VE50BEENJ 1992, VE50BEENM 1992, VE50BEESR 1990, VE50BEETB 1993, VE50BELEIA 1991, VE50BELENJ 1992, VE50BELENM 1992, VE50BELESR 1990, VE50BELETB 1993, VE50TELENM 1992, VE50TLEIA 1991, VE50TLENJ 1992, VE50TLENM 1992, VE50TLESR 1990, VE50TLETB 1993, VE50TLETF 1993 |
| VJ40 | VJ40EEIA 1991, VJ40EENJ 1992, VJ40EENM 1992, VJ40EESR 1990, VJ40EETB 1993, VJ40ELEIA 1991, VJ40ELENJ 1992, VJ40ELENM 1992, VJ40ELESR 1990, VJ40ELETB 1993, VJ40TELEIA 1991, VJ40TELENJ 1992, VJ40TELENM 1992, VJ40TELESR 1990, VJ40TELETB 1993, VJ40TLEIA 1991, VJ40TLENJ 1992, VJ40TLENM 1992, VJ40TLESR 1990, VJ40TLETB 1993, VJ40TLETF 1993 |
| VJ48 | VJ48ESLCER 1989, VJ48ESLENB 1992, VJ48ESLESA 1990, VJ48ESLETE 1993 |
| VJ50 | VJ50BEEIA 1991, VJ50BEENJ 1992, VJ50BEENM 1992, VJ50BEESR 1990, VJ50BEETB 1993, VJ50BELEIA 1991, VJ50BELENJ 1992, VJ50BELENM 1992, VJ50BELESR 1990, VJ50BELETB 1993, VJ50TELENM 1992, VJ50TLEIA 1991, VJ50TLENJ 1992, VJ50TLENM 1992, VJ50TLESR 1990, VJ50TLETB 1993, VJ50TLETF 1993 |
Equivalent Manufacturer References
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| Mercury/Mariner/Mercruiser | 878838 |
| OMC | 0432941, 0765350, 432941 |
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