25 mercury 2004 oil sensor

stumper1

Recruit
Joined
Jul 21, 2013
Messages
4
:mad:
I have a 25 hp 2004 bigfoot, and cant find the right oil sensor to fit it, mercury cant give the part # that matches the one that is in the motor they give me the part # 8m0068785 which I purchased already and it is completely different than the one in my motor and it wont physically fit the part is too big, the starter solenoid is in the way? I am disappointed that mercury wont help me with this.
 

belairbrian

Petty Officer 1st Class
Joined
Aug 21, 2009
Messages
360
Re: 25 mercury 2004 oil sensor

Is the old one # 828019A 1? If so it was superseded by 8m0068785.

Do you have an oil pressure gauge?
 

stumper1

Recruit
Joined
Jul 21, 2013
Messages
4
Re: 25 mercury 2004 oil sensor

yes, but the problem is that part does not fit.
no I don't have a gauge, I just have the alarm, when the alarm sounds the rpm's reduce and engine runs rough.
 
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carholme

Rear Admiral
Joined
Sep 4, 2010
Messages
4,845
Re: 25 mercury 2004 oil sensor

That s/n comes up as:

MERCURY - ( 25 H.P. (2004 ))
Serial No: 0T867570 Model No: 1F25412CD

Parts and Service Bulletin List for s/n 0T867570:

Search Results - Crowley Marine

Service Manual is P/N 90-854785R2. If you would like a copy, send me a PM with an email address and I will send it.

In this link from the parts list, what parts are you looking for, item 15 or 16?

Gerry
 

stumper1

Recruit
Joined
Jul 21, 2013
Messages
4
Re: 25 mercury 2004 oil sensor

YES!!!
belairbrian nailed it, why couldn't anyone else find it ??
thank you a million times, now, if I can get that part I will be a happy camper.

after further investigation, I realised that the captain also nailed it, thank you both.

:joyous:
THANK YOU
stumper1
 
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