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Water Pump Body 438543
Description
Function and Technical Context
The water pump body is the structural component that houses the impeller and internal passages of the seawater cooling system in outboard engines. Its function is to channel and direct the water flow captured from outside toward the heat exchanger or engine block jacket, ensuring the engine maintains optimal operating temperature throughout navigation. A deteriorated or cracked pump body causes loss of cooling flow rate, which results in engine overheating, activation of the temperature-based rev limiter, and in the most severe cases, deformation of cylinder head gaskets or irreversible damage to the block. This reference 438543 is compatible with Johnson, Evinrude, Mercury/Mariner/Mercruiser and Yamaha engines, covering a wide range of recreational and professional propulsion units.
When to Replace This Part?
The most common symptoms of a water pump body in poor condition are: presence of visible leaks in the pump area, reduced or irregular cooling water flow rate at the telltale outlet, cavitation noise coming from the pump, and high temperature signal on the gauge. It is recommended to inspect the pump body each time the impeller is replaced—typically every 200-300 hours of operation or at the beginning of each season—as internal cracks or wall erosion may go unnoticed until causing total failure underway. Replacing the pump body preventively along with the water kit is the practice recommended by marine service centers to avoid costly breakdowns offshore.
Compatible Johnson/Evinrude Engines
| Series | Models |
|---|---|
| BE50 | BE50DTLEUR 1997 |
| BE60 | BE60ELEUA 1997, BE60TLECM 1998, BE60TLEUA 1997 |
| BE70 | BE70ELECB 1998, BE70ELEUM 1997, BE70TLECB 1998, BE70TLEUM 1997 |
| BJ50 | BJ50DTLEUR 1997 |
| BJ60 | BJ60ELEUA 1997, BJ60TLECM 1998, BJ60TLEUA 1997 |
| BJ70 | BJ70ELECB 1998, BJ70ELEUM 1997, BJ70PLEEE 1999, BJ70PLSIS elec start, TNT, 20 in shaft, n/a usa 2001, BJ70PLSSD Elec Start, TNT, 20 IN. shaft 2000, BJ70TLECB 1998, BJ70TLEUM 1997 |
| E50 | E50DTLECA 1998, E50DTLEUR 1997, E50ELEUR 1997, E50TTLECA 1998, E50TTLEUR 1997 |
| E60 | E60ELCEA 1989, E60ELEIB 1991, E60ELENE 1992, E60ELERS 1994, E60ELERV 1994, E60ELESM 1990, E60ELETD 1993, E60ELEUA 1997, E60TLCEA 1989, E60TLECM 1998, E60TLEIB 1991, E60TLENE 1992, E60TLERS 1994, E60TLERV 1994, E60TLESM 1990, E60TLETD 1993, E60TLEUA 1997, E60TTLCEA 1989, E60TTLECM 1998, E60TTLEIB 1991, E60TTLENE 1992, E60TTLERS 1994, E60TTLERV 1994, E60TTLESM 1990, E60TTLETD 1993, E60TTLEUA 1997 |
| E65 | E65RSLZ2 1997, E65WELEES 1999, E65WELSIR Commercial, elec start, 20 in shaft 2001, E65WELSSC Commercial, Elec. Start, 20 IN. shaft 2000, 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 |
| E70 | E70ELCEM 1989, E70ELEIE 1991, E70ELEND 1992, E70ELERC 1994, E70ELERV 1994, E70ELESB 1990, E70ELETS 1993, E70TLCEM 1989, E70TLECB 1998, E70TLEIE 1991, E70TLEND 1992, E70TLERC 1994, E70TLERV 1994, E70TLESB 1990, E70TLETS 1993, E70TLEUM 1997, E70TTLEIE 1991, E70TTLEND 1992, E70TTLERC 1994, E70TTLERV 1994, E70TTLETS 1993 |
| HE70 | HE70TXEUM 1997 |
| HJ70 | HJ70TXEUM 1997 |
| 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 |
| J50 | J50DTLECA 1998, J50DTLEUR 1997, J50ELEUR 1997, J50TTLECA 1998, J50TTLEUR 1997 |
| J60 | J60ELCEA 1989, J60ELEIB 1991, J60ELENE 1992, J60ELERS 1994, J60ELERV 1994, J60ELESM 1990, J60ELETD 1993, J60ELEUA 1997, J60PLEEB 1999, J60PLSID elec start, TNT, 20 in shaft 2001, J60PLSSE Elec Start, TNT, 20 IN. shaft 2000, J60TLCEA 1989, J60TLECM 1998, J60TLEIB 1991, J60TLENE 1992, J60TLERS 1994, J60TLERV 1994, J60TLESM 1990, J60TLETD 1993, J60TLEUA 1997, J60TTLCEA 1989, J60TTLECM 1998, J60TTLEIB 1991, J60TTLENE 1992, J60TTLERS 1994, J60TTLERV 1994, J60TTLESM 1990, J60TTLETD 1993, J60TTLEUA 1997, J60VLSID elec start, TNT, 20 in shaft, wht 2001 |
| J65 | J65RSLZ2 1997, J65WELEES 1999, J65WELSIR Commercial, elec start, 20 in shaft 2001, J65WELSSC Commercial, Elec. Start, 20 IN. shaft 2000, 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 |
| J70 | J70ELCEM 1989, 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, J70TLCEM 1989, J70TLECB 1998, J70TLEIE 1991, J70TLEND 1992, J70TLERC 1994, J70TLERV 1994, J70TLESB 1990, J70TLETS 1993, J70TLEUM 1997, J70TTLEIE 1991, J70TTLEND 1992, J70TTLERC 1994, J70TTLERV 1994, J70TTLETS 1993, J70VLSIS elec start, TNT, 20 in shaft 2001 |
| RJ70 | RJ70PLSIS elec start, TNT, 20 in shaft 2001, RJ70PLSSD Elec Start, TNT, 20 IN. shaft 2000 |
| SE65 | SE65RSLD 1998, SE65RSLZ2 1997, SE65RSYD 1998, SE65RSYZ2 1997, SE65WMLD 1998, SE65WMLZ2 1997, SE65WMYD 1998, SE65WMYZ2 1997 |
| SJ65 | SJ65RSLD 1998, SJ65RSLZ2 1997, SJ65RSYD 1998, SJ65RSYZ2 1997, SJ65WMLD 1998, SJ65WMLZ2 1997, SJ65WMYD 1998, SJ65WMYZ2 1997 |
| 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 | 80003M, 80004M, 802499, 802499A1, 879028 |
| OMC | 0432955, 0438543, 438543 |
| Yamaha | 116-81331-20-00 |
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