regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

[Matthew Wnek]

my 2001 90hp 4 stroke has a blown regulator/ rectifier. Part is obsolete, so need help in finding replacement part. was told that yamaha make engine for merc. and part#67F81960-12-00 could be used.Does anyone have info. thankyou all

 

[bobkyle2]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Whats the serial number on the engine?

 

[carholme]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Here is the original p/n and the replacement/upgraded unit:

804278T11 NLA-ORD 804278A12 (MERCURY) 0 No Longer Available
804278A12 RECTIFIER/REGULAT (MERCURY) $429.93 1

That is some scary price!

Here is a marginally less expensive one:

http://www.marinepowerservice.com/B...kdrive/804269T2/path/804851004/pickyear/0.cfm

Gerry

 

[Matthew Wnek]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Whats the serial number on the engine?

serial# is 0T270537 model#1-F90412YD thanks

 

[Matthew Wnek]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Here is the original p/n and the replacement/upgraded unit:

804278T11 NLA-ORD 804278A12 (MERCURY) 0 No Longer Available
804278A12 RECTIFIER/REGULAT (MERCURY) $429.93 1

That is some scary price!

Here is a marginally less expensive one:

http://www.marinepowerservice.com/B...kdrive/804269T2/path/804851004/pickyear/0.cfm

Gerry

thanks for the info- matty

 

[Matthew Wnek]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

can I replace merc reg./ rect. with a yamaha part?

 

[carholme]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Matty;

If you don't have the parts and service manual, here they are:

Parts listing:

http://www.crowleymarine.com/mercury-outboard/4858.cfm

Service Manual P/N: 90-858895

http://1manual.com/Mercury manuals/Service Manual PDFs/FourStroke/858895r1/cover.pdf

You must have Adobe Acrobat reader installed to use this manual. If you scroll down to the lower part of the opening page, you will see the various engine components in red. Click on the one you want and when the first page opens, click on the "Save As" icon at the top LH corner of the page and you can save it to your computer.

Gerry

 

[Matthew Wnek]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Gerry, thanks but have manual.need to know if i can replace part with a yamaha part, as in first reply

 

[kinzoo]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Gerry, thanks but have manual.need to know if i can replace part with a yamaha part, as in first reply

I had the same problem, did you find out if we could use Yamaha parts??
The engines look identical.

Thanks,
EWK

 

[pk136]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

I had the same problem, did you find out if we could use Yamaha parts??
The engines look identical.

Thanks,
EWK

Kinzo/Matthew

What problems lead you to believe the rectifier was faulty?
I ask because I assumed my 2004 was also faulty due to very high voltage output (approx 20 volts) and tachometer not working. I have reviewed the manual which indictes these voltages are normal...contrary to any other engine I have had which has a output voltasge of 14.5.

Can anyone confirm if the expected rectifier/regulator output voltage of 18++ is correct for these units.

Thanks PK

 

[Dave1027]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

804278A12 RECTIFIER/REGULAT (MERCURY) $429.93 1

That is some scary price!

No way would I fork over that kind of money for something that should cost a fraction of that. I'd try to make it work with maybe these:

http://www.autozone.com/autozone/accessories/Wells-Manufacturing-Marine-voltage-regulator/_/N-269e?itemIdentifier=319661_0_0_
https://www.parts-express.com/pe/showdetl.cfm?partnumber=050-060

 

[woody66912]

Re: regulator/ rectifier replacement part 2001 mercury 90hp 4 stroke

Merc has a huge problem with volt reg's I see one or two a week that have almost started engines on fire, this has been going on since the early 90's I'm surprised someone hasn't got killed. The whole dam lot should have been recalled!.