1983 7.5 hp merc water pump for .438"shaft

kazek

Petty Officer 2nd Class
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May 14, 2011
Messages
187
hi.recently i have purchaced 1983 7.5 hp kicker motor,sn#6240895.after compression and spark turned good.now...when changing impeller found that it was a miss fit(47-89981).it had lots of play by the shaft,water pump base is melted inside by the cupandthe water intake is almost blocked.i dig into it more ad found that i have .438" shaft and cannot find replacment pump complete kit.my water pump base has 46-92969 satamped on it and i can't find replacment.www.mercruiserparts.com lists housing 46-92970a1 to fit that shaft with impeller #47-89980.does sierra makes complete kits for .438 ..or i have to buy housing,seals,o-rings etc.separetly?any thoughts on nthis are appretiated041.jpg040.jpg039.jpg
 

Laddies

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Sep 10, 2004
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12,218
Re: 1983 7.5 hp merc water pump for .438"shaft

The kit is NLA from Mercury also but you can buy the parts individually
 

kazek

Petty Officer 2nd Class
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May 14, 2011
Messages
187
Re: 1983 7.5 hp merc water pump for .438"shaft

sierra 18-3446 has replacment kit for .456"shaft.would housing fit smaller shaft with change of seals(18-2110 for the cover,18-0516 for the base) and a impeller 18-3054?why is that there is NLA parts for those motors
 

Laddies

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12,218
Re: 1983 7.5 hp merc water pump for .438"shaft

The housing you need is Mercury part number 4692970Ai buy which ever one you like. As far as NLA you could write a letter to Mercury Marine as I can not speak for them.
 

kazek

Petty Officer 2nd Class
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May 14, 2011
Messages
187
Re: 1983 7.5 hp merc water pump for .438"shaft

Ok.thanks laddies
 

oldman570

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Mar 25, 2011
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Re: 1983 7.5 hp merc water pump for .438"shaft

Check your PM's as I might be of help
Oldman570
 
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