1998 Mercury 40hp part #s

gahunter706

Petty Officer 3rd Class
Joined
Jun 3, 2013
Messages
82
I have a 1998 Mercury 40hp 2stroke serial# 0G662847 that I am going to replace the impeller on. Do I need to get the water pump repair kit that comes with a new housing and seals or just a new impeller, and what are the correct part#s for this motor? Do I need any special marine grease or sealant? I have never changed an impeller before, but I watched some videos and it seems pretty simple. Thanks in advance.
 

carholme

Rear Admiral
Joined
Sep 4, 2010
Messages
4,845
Re: 1998 Mercury 40hp part #s

Your s/n comes up as:

MERCURY - ( 40 H.P. (1998 ))
Serial No: 0G662847 Model No: 1043412UD

Parts List for model 1043412UD:

40/50 H.P. JET 30 (3 CYL.) - Mercury, Mercruiser, Force, etc. Parts Lookup

See the impeller as item 21 under GEAR HOUSING (DRIVE SHAFT)(1.83:1 GEAR RATIO). The repair kit is the very last item at the bottom of the page. You may get away with just the impeller and the gaskets but you won't really know until you get it apart. and inspect the housing and the plate.

The service manual you require is P/N: 90-852572 and if you do not have one, see my message to you in Notifications at the top of the page.

Gerry
 
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