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Water Pump Impeller Omc 396725 500303C
Description
Function and Technical Context
The water pump impeller is the central rotating component of the raw water cooling system in outboard and stationary marine engines. Manufactured from high-strength flexible rubber, its blades bend as they rotate within the pump housing and generate the flow rate necessary to circulate water through the cooling circuit, ensuring the engine always operates within its safe temperature range. Without a properly functioning impeller, cooling flow is drastically reduced or interrupted entirely, exposing the engine to severe overheating, cylinder head gasket damage, block warping, and costly failures. This impeller replaces OMC manufacturer references 396725 and 0396725, as well as Mercury/MerCruiser references 802123 and 802123A1, and is compatible with a wide range of Johnson, Evinrude, and Mercury engines.
When to Replace This Part?
The most common symptoms of a worn or broken impeller are the temperature alarm activating during operation, absent or visibly reduced cooling water discharge from the telltale outlet, and the engine reaching elevated temperature rapidly even at idle. The rubber blades harden, crack, or shed with use and heat exposure, especially after periods of dry running however brief. Manufacturers and specialist workshops recommend replacing the impeller every 200-300 operating hours or at minimum every two seasons, regardless of exterior appearance. Replacing it preventively during seasonal maintenance is the simplest and most cost-effective measure to avoid a cooling system failure at sea.
Compatible Johnson/Evinrude Engines
| Series | Models |
|---|---|
| AM55 | AM55RSLD 1999 |
| BE60 | BE60TLECM 1998 |
| BE70 | BE70ELECB 1998, BE70TLECB 1998 |
| BJ60 | BJ60TLECM 1998 |
| BJ70 | BJ70ELECB 1998, BJ70PLEEE 1999, BJ70PLSIS elec start, TNT, 20 in shaft, n/a usa 2001, BJ70PLSSD Elec Start, TNT, 20 IN. shaft 2000, BJ70TLECB 1998 |
| E40 | E40DELSDA, E40DELSOR, E40DGTLAGA, E40DGTLAGB, E40DGTLAGC, E40DGTLAGD, E40DGTLAGF, E40DGTLAGG, E40DGTLAGJ, E40DHGLAGA - ITALY ONLY, E40DHGLAGB - ITALY ONLY, E40DHGLAGC - ITALY ONLY, E40DHGLAGD - ITALY ONLY, E40DHGLAGF - ITALY ONLY, E40DHGLAGG - ITALY ONLY, E40DHLAAA - ITALY ONLY, E40DHLABA - ITALY ONLY, E40DHLAFA - ITALY ONLY, E40DHLAFB - ITALY ONLY, E40DHLAGA - ITALY ONLY, E40DHLAGB - ITALY ONLY, E40DHLAGC - ITALY ONLY, E40DHLINS - ITALY ONLY, E40DHSLAAA - ITALY ONLY, E40DHSLABA - ITALY ONLY, E40DHSLAFA - ITALY ONLY, E40DHSLAFB - ITALY ONLY, E40DHSLAGA - ITALY ONLY, E40DHSLAGB - ITALY ONLY, E40DHSLAGC - ITALY ONLY, E40DHSLAGD - ITALY ONLY, E40DHSLAGF - ITALY ONLY, E40DHSLAGG - ITALY ONLY, E40DHSLINS - ITALY ONLY, E40DPGLAGA, E40DPGLAGB, E40DPGLAGC, E40DPGLAGD, E40DPGLAGF, E40DPGLAGG, E40DPLAAA, E40DPLABA, E40DPLAFA, E40DPLAFB, E40DPLAGA, E40DPLIIS, E40DPLINC, E40DPLISD, E40DPLISF, E40DPLSCB, E40DPLSDA, E40DPLSEE, E40DPLSOR, E40DPLSUM, E40DRGLAGA, E40DRGLAGB, E40DRGLAGC, E40DRGLAGD, E40DRGLAGF, E40DRGLAGG, E40DRLAAA, E40DRLABA, E40DRLAFA, E40DRLAFB, E40DRLAGA, E40DRLIIS, E40DRLINC, E40DRLISD, E40DRLISF, E40DRLSCB, E40DRLSDA, E40DRLSEE, E40DRLSOR, E40DRLSUM, E40DRMLABA, E40DRMLAGA, E40DRMLAGB, E40DRMLAGC, E40DRMLAGD, E40DRMLAGF, E40DRMLAGG, E40DSLAAA, E40DSLABA, E40DSLAFA, E40DSLAFB, E40DSLAGA, E40DSLAGB, E40DSLAGC, E40DSLAGD, E40DSLAGF, E40DSLAGG, E40DSLIIA, E40DSLINM, E40DSLISF, E40DSLISR, E40DSLSCS, E40DSLSEC, E40DTLAAA, E40DTLABA, E40DTLAFA, E40DTLAFB, E40DTLAGA, E40DTLIIA, E40DTLINM, E40DTLISF, E40DTLISR, E40DTLSCS, E40DTLSEC, E40WREES 1999, E40WRLEES 1999, E40WRLSIR commercial, rope start, 20 in shaft 2001, E40WRLSSC Commercial, Rope Start, Tiller, 15 IN. shaft 2000, E40WRSIR commercial, rope start, 15 in shaft 2001, E40WRSSC Commercial, Rope Start, Tiller, 15 IN. shaft 2000, E40WRYEES 1999, E40WRYSIR commercial, rope start, 25 in shaft 2001, E40WRYSSC Commercial, Rope Start, Tiller, 22.5 IN. shaft 2000 |
| E50 | E50DGTLAGA, E50DGTLAGB, E50DGTLAGC, E50DGTLAGD, E50DGTLAGF, E50DGTLAGG, E50DPGLAGA, E50DPGLAGB, E50DPGLAGC, E50DPGLAGD, E50DPGLAGF, E50DPGLAGG, E50DPLAAA, E50DPLABA, E50DPLAFA, E50DPLAFB, E50DPLAGA, E50DPLIIS, E50DPLINC, E50DPLISD, E50DPLISF, E50DPLSCB, E50DPLSDA, E50DPLSEE, E50DPLSOR, E50DPLSUM, E50DRMLAFA, E50DRMLAFB, E50DSLAAA, E50DSLABA, E50DSLAFA, E50DSLAFB, E50DSLAGA, E50DSLAGB, E50DSLAGC, E50DSLAGD, E50DSLAGF, E50DSLAGG, E50DSLIIA, E50DSLINM, E50DSLISF, E50DSLISR, E50DSLSCS, E50DSLSEC, E50DTLAAA, E50DTLABA, E50DTLAFA, E50DTLAFB, E50DTLAGA, E50DTLECA 1998, E50DTLIIA, E50DTLINM, E50DTLISF, E50DTLISR, E50DTLSCS, E50DTLSEC, E50TTLECA 1998 |
| E55 | E55MJRLAAA, E55MJRLABA, E55MJRLABB, E55MJRLABF, E55MJRLAFA, E55MJRLAFB, E55MJRLAFC, E55MJRLAFD, E55MJRLAFF, E55MJRLAFG, E55MJRLIIM, E55MJRLINB, E55MJRLISA, E55MJRLSCC, E55MJRLSEF, E55MJRLSER, E55MRLAAA, E55MRLABA, E55MRLABB, E55MRLABF, E55MRLAFA, E55MRLAFB, E55MRLAFC, E55MRLAFD, E55MRLAFF, E55MRLAFG, E55MRLIIM, E55MRLINB, E55MRLISA, E55MRLSCC, E55MRLSEF, E55MRLSER, E55WREES 1999, E55WRLEES 1999, E55WRLSIR commercial, rope start, 20 in shaft 2001, E55WRLSSC Commercial, Rope Start, Tiller, 20 IN. shaft 2000, E55WRSIR commercial, rope start, 15 in shaft 2001, E55WRSSC Commercial, Rope Start, Tiller, 15 IN. shaft 2000, E55WRYEES 1999, E55WRYSIR commercial, rope start, 25 in shaft 2001, E55WRYSSC Commercial, Rope Start, Tiller, 22.5 IN. shaft 2000 |
| E60 | E60DGTLAGA, E60DGTLAGB, E60DGTLAGC, E60DGTLAGD, E60DGTLAGF, E60DGTLAGG, E60DPGLAGA, E60DPGLAGB, E60DPGLAGC, E60DPGLAGD, E60DPGLAGF, E60DPGLAGG, E60DPLAAA, E60DPLABA, E60DPLAFA, E60DPLAFB, E60DPLAGA, E60DPLIIS, E60DPLINC, E60DPLISD, E60DPLISF, E60DPLSCB, E60DPLSDA, E60DPLSEE, E60DPLSUM, E60DSLAAA, E60DSLABA, E60DSLAFA, E60DSLAFB, E60DSLAGA, E60DSLAGB, E60DSLAGC, E60DSLAGD, E60DSLAGF, E60DSLAGG, E60DSLIIA, E60DSLINM, E60DSLISF, E60DSLISR, E60DSLSCS, E60DSLSEC, E60DTLAAA, E60DTLABA, E60DTLAFA, E60DTLAFB, E60DTLAGA, E60DTLIIA, E60DTLINM, E60DTLISF, E60DTLISR, E60DTLSCS, E60DTLSEC, E60ELCCR 1988, E60ELCDS 1986, E60ELCEA 1989, E60ELCUC 1987, E60ELEIB 1991, E60ELENE 1992, E60ELERS 1994, E60ELERV 1994, E60ELESM 1990, E60ELETD 1993, E60TLCCR 1988, E60TLCDS 1986, E60TLCEA 1989, E60TLCUC 1987, E60TLECM 1998, E60TLEIB 1991, E60TLENE 1992, E60TLERS 1994, E60TLERV 1994, E60TLESM 1990, E60TLETD 1993, E60TTLCCR 1988, E60TTLCEA 1989, E60TTLECM 1998, E60TTLEIB 1991, E60TTLENE 1992, E60TTLERS 1994, E60TTLERV 1994, E60TTLESM 1990, E60TTLETD 1993, E60WDRLSOS, E60WDRYSOS |
| E65 | E65RSLZ2 1997, E65RWLCDR 1986, E65RWLCOC 1985, E65RWLCRS 1984, E65TELCDR 1986, E65TELCOC 1985, E65TELCRS 1984, E65WDRLIIA, E65WDRLINM, E65WDRLISF, E65WDRLISR, E65WDRLSCS, E65WDRLSEC, E65WDRYIIA, E65WDRYINM, E65WDRYISF, E65WDRYISR, E65WDRYSCS, E65WDRYSEC, E65WELEES 1999, E65WELSIR Commercial, elec start, 20 in shaft 2001, E65WELSSC Commercial, Elec. Start, 20 IN. shaft 2000, E65WMLCDR 1986, E65WMLCOC 1985, E65WMLCUA 1987, E65WMLEIB 1991, E65WMLENE 1992, E65WMLERS 1994, E65WMLESM 1990, E65WMLETD 1993, E65WMLZ 1989, E65WRLEEO 1999, E65WRLEES 1999, E65WRLSIR commercial, rope start, 20 in shaft 2001, E65WRLSSC Commercial, Rope Start, 20 IN. shaft 2000, E65WRYEEO 1999, E65WRYEES 1999, E65WRYSIR commercial, rope start, 22.5 in shaft 2001, E65WRYSSC Commercial, Rope Start, 22.5 IN. shaft 2000, E65WTLCOC 1985, E65WTLCRS 1984 |
| E70 | E70ELCCA 1988, E70ELCDC 1986, E70ELCEM 1989, E70ELCIH 1981, E70ELCIM 1981, E70ELCNB 1982, E70ELCOS 1985, E70ELCRD 1984, E70ELCSA 1980, E70ELCTE 1983, E70ELCUR 1987, E70ELEIE 1991, E70ELEND 1992, E70ELERC 1994, E70ELERV 1994, E70ELESB 1990, E70ELETS 1993, E70TLCCA 1988, E70TLCDC 1986, E70TLCEM 1989, E70TLCIM 1981, E70TLCNB 1982, E70TLCOS 1985, E70TLCRD 1984, E70TLCTE 1983, E70TLCUR 1987, E70TLECB 1998, E70TLEIE 1991, E70TLEND 1992, E70TLERC 1994, E70TLERV 1994, E70TLESB 1990, E70TLETS 1993, E70TTLEIE 1991, E70TTLEND 1992, E70TTLERC 1994, E70TTLERV 1994, E70TTLETS 1993 |
| E75 | E75ECDC 1986, E75ECOS 1985, E75ECRD 1984, E75ECUR 1987, E75ELCRD 1984, E75ERCIH 1981, E75ERCIM 1981, E75ERCNB 1982, E75ERCSA 1980, E75ERCTE 1983, E75ERLCIH 1981, E75ERLCIM 1981, E75ERLCNB 1982, E75ERLCSA 1980, E75ERLCTE 1983, E75TLCRD 1984, E75TRLCIH 1981, E75TRLCIM 1981, E75TRLCNB 1982, E75TRLCSA 1980, E75TRLCTE 1983 |
| J40 | J40JPLEEC 1999, J40JPLSIA jet drive,elec start, TNT, 20 in shaft 2001, J40JPLSSR Jet Drive, Elec Start, TNT, 20 IN. shaft 2000, J40JVLSIA jet drive,elec start, TNT, 20 in shaft, wht 2001, J40WREES 1999, J40WRLEES 1999, J40WRLSIR commercial, rope start, 20 in shaft 2001, J40WRLSSC Commercial, Rope Start, Tiller, 20 IN. shaft 2000, J40WRSIR commercial, rope start, 15 in shaft 2001, J40WRSSC Commercial, Rope Start, Tiller, 15 IN. shaft 2000, J40WRYEES 1999, J40WRYSIR commercial, rope start, 25 in shaft 2001, J40WRYSSC Commercial, Rope Start, Tiller, 22.5 IN. shaft 2000 |
| J50 | J50DTLECA 1998, J50TTLECA 1998 |
| J55 | J55APRL, J55APRLSOM, J55APRLSRA, J55APRLSRG, J55ML, J55MLSOR, J55MLSRC, J55MLSRG, J55WREES 1999, J55WRLEES 1999, J55WRLSIR commercial, rope start, 20 in shaft 2001, J55WRLSSC Commercial, Rope Start, Tiller, 20 IN. shaft 2000, J55WRSIR commercial, rope start, 15 in shaft 2001, J55WRSSC Commercial, Rope Start, Tiller, 15 IN. shaft 2000, J55WRYEES 1999, J55WRYSIR commercial, rope start, 25 in shaft 2001, J55WRYSSC Commercial, Rope Start, Tiller, 22.5 IN. shaft 2000 |
| J60 | J60ELCCR 1988, J60ELCDS 1986, J60ELCEA 1989, J60ELCUC 1987, J60ELEIB 1991, J60ELENE 1992, J60ELERS 1994, J60ELERV 1994, J60ELESM 1990, J60ELETD 1993, J60PLEEB 1999, J60PLSID elec start, TNT, 20 in shaft 2001, J60PLSSE Elec Start, TNT, 20 IN. shaft 2000, J60TLCCR 1988, J60TLCDS 1986, J60TLCEA 1989, J60TLCUC 1987, J60TLECM 1998, J60TLEIB 1991, J60TLENE 1992, J60TLERS 1994, J60TLERV 1994, J60TLESM 1990, J60TLETD 1993, J60TTLCCR 1988, J60TTLCEA 1989, J60TTLECM 1998, J60TTLEIB 1991, J60TTLENE 1992, J60TTLERS 1994, J60TTLERV 1994, J60TTLESM 1990, J60TTLETD 1993, J60VLSID elec start, TNT, 20 in shaft, wht 2001 |
| J65 | J65RSLZ2 1997, J65RWLCDR 1986, J65RWLCOC 1985, J65RWLCRS 1984, J65TELCDR 1986, J65TELCOC 1985, J65TELCRS 1984, J65WELEES 1999, J65WELSIR Commercial, elec start, 20 in shaft 2001, J65WELSSC Commercial, Elec. Start, 20 IN. shaft 2000, J65WMLCDR 1986, J65WMLCOC 1985, J65WMLCUA 1987, J65WMLEIB 1991, J65WMLENE 1992, J65WMLERS 1994, J65WMLESM 1990, J65WMLETD 1993, J65WMLZ 1989, J65WRLEEO 1999, J65WRLEES 1999, J65WRLSIR commercial, rope start, 20 in shaft 2001, J65WRLSSC Commercial, Rope Start, 20 IN. shaft 2000, J65WRYEEO 1999, J65WRYEES 1999, J65WRYSIR commercial, rope start, 22.5 in shaft 2001, J65WRYSSC Commercial, Rope Start, 22.5 IN. shaft 2000, J65WTLCOC 1985, J65WTLCRS 1984 |
| J70 | J70ELCCA 1988, J70ELCDC 1986, J70ELCEM 1989, J70ELCIH 1981, J70ELCIM 1981, J70ELCNB 1982, J70ELCOS 1985, J70ELCRD 1984, J70ELCSA 1980, J70ELCTE 1983, J70ELCUR 1987, J70ELEIE 1991, J70ELEND 1992, J70ELERC 1994, J70ELERV 1994, J70ELESB 1990, J70ELETS 1993, J70PLEEE 1999, J70PLSIS elec start, TNT, 20 in shaft 2001, J70PLSSD Elec Start, TNT, 20 IN. shaft 2000, J70TLCCA 1988, J70TLCDC 1986, J70TLCEM 1989, J70TLCIM 1981, J70TLCNB 1982, J70TLCOS 1985, J70TLCRD 1984, J70TLCTE 1983, J70TLCUR 1987, J70TLECB 1998, J70TLEIE 1991, J70TLEND 1992, J70TLERC 1994, J70TLERV 1994, J70TLESB 1990, J70TLETS 1993, J70TTLEIE 1991, J70TTLEND 1992, J70TTLERC 1994, J70TTLERV 1994, J70TTLETS 1993, J70VLSIS elec start, TNT, 20 in shaft 2001 |
| J75 | J75ECDC 1986, J75ECNB 1982, J75ECOS 1985, J75ECRD 1984, J75ECTE 1983, J75ECUR 1987, J75ELCNB 1982, J75ELCRD 1984, J75ELCTE 1983, J75ERCIH 1981, J75ERCIM 1981, J75ERCSA 1980, J75ERLCIH 1981, J75ERLCIM 1981, J75ERLCSA 1980, J75TELCIM 1981, J75TLCNB 1982, J75TLCRD 1984, J75TLCTE 1983, J75TRLCIH 1981, J75TRLCSA 1980 |
| N65 | N65WMLM 1988 |
| Otros | 70973R 1979, 70EL79R 1979, 75942R 1979, 75943R 1979, 75ELR79R 1979, 75ER79R 1979 |
| RJ70 | RJ70PLSIS elec start, TNT, 20 in shaft 2001, RJ70PLSSD Elec Start, TNT, 20 IN. shaft 2000 |
| SE40 | SE40RPLT2 1998, SE40RPT2 1998, SE40RPYT2 1998 |
| SE55 | SE55RSLM2 1998, SE55RSM2 1998, SE55RSYM2 1998 |
| SE65 | SE65RSLD 1998, SE65RSLZ2 1997, SE65RSYD 1998, SE65RSYZ2 1997, SE65WMLD 1998, SE65WMLZ2 1997, SE65WMYD 1998, SE65WMYZ2 1997 |
| SJ40 | SJ40RPLT2 1998, SJ40RPT2 1998, SJ40RPYT2 1998 |
| SJ55 | SJ55RSLM2 1998, SJ55RSM2 1998, SJ55RSYM2 1998 |
| SJ65 | SJ65RSLD 1998, SJ65RSLZ2 1997, SJ65RSYD 1998, SJ65RSYZ2 1997, SJ65WMLD 1998, SJ65WMLZ2 1997, SJ65WMYD 1998, SJ65WMYZ2 1997 |
| T65 | T65WMLM 1988 |
| TE60 | TE60TLCEA 1989, TE60TLEIB 1991, TE60TLENE 1992, TE60TLESF 1989, TE60TLESF 1990, TE60TLESM 1990, TE60TLETD 1993 |
| TE70 | TE70TLCEM 1989, TE70TLESB 1990, TE70TLESF 1989, TE70TLESF 1990 |
| TJ60 | TJ60TLCEA 1989, TJ60TLEIB 1991, TJ60TLENE 1992, TJ60TLESF 1989, TJ60TLESF 1990, TJ60TLESM 1990, TJ60TLETD 1993 |
| TJ70 | TJ70TLCEM 1989, TJ70TLESB 1990, TJ70TLESF 1989, TJ70TLESF 1990 |
| VE60 | VE60ELEIB 1991, VE60ELENE 1992, VE60ELESM 1990, VE60ELETD 1993, VE60TLEIB 1991, VE60TLENE 1992, VE60TLESM 1990 |
| VE70 | VE70ELEIE 1991, VE70ELEND 1992, VE70ELESB 1990, VE70ELETS 1993, VE70TLEIE 1991, VE70TLEND 1992, VE70TLESB 1990, VE70TLETS 1993 |
| VJ60 | VJ60ELEIB 1991, VJ60ELENE 1992, VJ60ELESM 1990, VJ60ELETD 1993, VJ60TLEIB 1991, VJ60TLENE 1992, VJ60TLESM 1990 |
| VJ70 | VJ70ELEIE 1991, VJ70ELEND 1992, VJ70ELESB 1990, VJ70ELETS 1993, VJ70TLEIE 1991, VJ70TLEND 1992, VJ70TLESB 1990, VJ70TLETS 1993 |
Equivalent Manufacturer References
| Manufacturer/Brand | Reference/Part Number |
|---|---|
| Mercury/Mariner/Mercruiser | 802123, 802123A1 |
| OMC | 0389557, 0396725, 0432954, 0437080, 0777820, 396725, 432954 |
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