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Author Topic:   Power Pack For Johnson 150 Fast Strike
billnaco posted 06-17-2007 04:25 PM ET (US)   Profile for billnaco   Send Email to billnaco  
I'm in need of a Power Pack for my 1994 Johnson 150 HP Fast Strike engine (Model # J150GLERA). When I did a search on several websites they reflect the replacement part number is 584985 which is manufactured by Sierra under the part number 18-5887 as a replacement. I just checked the bad one on my motor and the number is 584910 which is completely different that those two numbers.

Mine was replaced several years ago and that number may not be the OEM number. Is the 18-5887 by Sierra the correct one for my application?

hauptjm posted 07-12-2007 02:48 PM ET (US)     Profile for hauptjm    
It is the correct one, because I'm about to (this weekend) replace mine on a 1995 Johnson 150 Oceanrunner. I would advise you to NOT buy the Sierra product. After speaking with many very trusted marine repair folks, not one them likes or uses Sierra. They claim (annecdotally) that they are clearly inferior to OEM or CDI parts. CDI Electronics seems to be the better aftermarket provider for outboards. They run a little more, but apparently have a better warranty and are more reliable.

Again, I researched this for several weeks before making the decision to go with CDI.

hauptjm posted 07-17-2007 10:54 AM ET (US)     Profile for hauptjm    
I did the repair this past weekend. It was quite simply the easiest repair anyone could do on an outboard engine. The entire process took less than 20 minutes. It is nothing but plug and play work. The boat fired up on the first crank.

As an aside, this is a fairly expensive job if done by a dealer/marine repair shop. I was quoted anywhere from $500 to $700 to do the work. I paid $220 for the OEM part and quess my 20 minutes on a Saturday morning were worth ?? The best part was my little guy (age 5) helped me.

jimh posted 07-17-2007 01:36 PM ET (US)     Profile for jimh  Send Email to jimh     
The Power Pack may be easier to access on the 150-HP motors than on the 225-HP V6. There it is a bit of a chore to pack all the wires and connectors into a very compact space:

hauptjm posted 07-18-2007 11:09 AM ET (US)     Profile for hauptjm    
jimh, I'm not surprised at your comment regarding the increased difficulty with a larger engine. When you look at the engine cowling of my 150 versus say a 225 of the same vintage (1995 OMC), the larger engine doesn't appear to be that much larger. With that said, obviously there is more to pack into that casing than the smaller 150hp engine.

Even so, it was really a fairly easy procedure that I think anyone with a trace of mechanical ability could accomplish. Now, when I look at the current crop of outboards and their electronic/digital/computer wizardry, that may be a horse(power) of another color! For now. I'll just dream of the E-TEC in my future.

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