NAPA part numbers for 1957 18hp Johnson fd-11

yam350yfm

Petty Officer 3rd Class
Joined
Dec 26, 2007
Messages
79
Does anybody have the NAPA part numbers for the coils, ignition tune-up kit, carb rebuild kit, head gasket, and impeller for a 1957 Johnson 18hp model fd-11?

I have the original 1957 Johnson part numbers but the NAPA books only show part numbers back to 1973.

Here are the original 1957 Johnson part numbers:
Coil 580197
Breaker assembly 580148
Condenser 510173
Head gasket 304688
Impeller assembly 375638

I do not have the carb rebuild kit part number.

Update to those that have been helping me, I pulled the flywheel and one coil was bad oozing, which explains why one plug was fouled and one was good. I plan to replace both coils, points, etc so that I know when it all went in.

After that I plan to start the motor and decarb it. Once that is complete the plan is to rebuild the carb, then replace the impeller pump. The plan is to limit what was changed so if it does not start I know where to begin troubleshooting. I found the instructions to tune-up from a link on iboats.

http://www.outboard-boat-motor-repair.com/Johnson/default.htm

Those procedures were for a Johnson 5.5 of the same vintage. I figure the instructions are similar, just not sure if the NAPA part numbers are the same as the Johnson part numbers are different from what is listed for the 5.5 and the 18.

Oh, one other set back....I am replacing the transom on the Lund 314 Sportsman fiberglass boat that I plan to install this motor on.....

To quote Clark W Griswald in the Vacation movie series "We're standing at the threshold of hell, what else could possibly go wrong?"

Maybe it is a good thing I live where you can only boat 6 months a year, so I have the other 6 to keep things running.

As always to all of you that have helped me out....Thanks! I can't believe that I am within a few weeks of having this ready to hit the water, starting with a seized motor and a boat that had not been in the water since 1993!
 

wbeaton

Commander
Joined
Jul 30, 2006
Messages
2,332
Re: NAPA part numbers for 1957 18hp Johnson fd-11

Procedure is the same as the 5.5 hp, except you don't have to remove the powerhead to take off the lower unit.

Carburetor repair kit - Sierra 18-7043
Coils - Sierra 18-5181
Ignition Tune-Up Kit - Sierra 18-5006
Impeller - 18-3002

Head Gasket - BRP 304688 (I don't know if this is available from Sierra)

Also, if you are just taking off the head to clean out the carbon as per the instructions on that website then I wouldn't bother. Just do a decarb with some Seafoam instead.
 

Gary H NC

Fleet Admiral
Joined
Dec 1, 2005
Messages
8,972
Re: NAPA part numbers for 1957 18hp Johnson fd-11

Napa uses the same part numbers as Sierra,so if you have the Sierra number call Napa and ask.
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: NAPA part numbers for 1957 18hp Johnson fd-11

Sierra does not list a number for 304688.
Consider supporting our host, iboats. They also sell Sierra stuff.
 

yam350yfm

Petty Officer 3rd Class
Joined
Dec 26, 2007
Messages
79
Re: NAPA part numbers for 1957 18hp Johnson fd-11

Thanks for the tip to order from iboats....it saved me about $20 for the parts and I don't have to go pick them up. I didn't realize they carried parts for the old outboards here.
 
Top