1984 johnson 70hp using newer water pump kit?

suzukidave

Petty Officer 1st Class
Joined
Jul 1, 2000
Messages
387
hey folks, i have a parts anomaly question where i think the sierra info on this site may be wrong.

i have a 1984 long leg 3 cylinder 70hp johnson.

brp/evinrude lists the water pump kit for this as p/n 438602 for this motor

brp/evinrude lists a different kit, 432955 for 1986+ years

here's the thing, multiple websites including this one list a single sierra kit 18-3899 for 70hp 3 cyl for all years. but if i look at the actual sierra catalog on their website it shows it as replacing the 1986+ evinrude p/n.

so evinrude specifies two kits but the sierra may or may not replace both.

i don't want to order the sierra kit and get burned.

i am shipping no matter what i do. the correct oem part is over $100 here in canada plus shipping. i can get the later oem kit or the sierra part for much less.
 

jakedaawg

Rear Admiral
Joined
Jun 26, 2012
Messages
4,275
Boating is cheap...said no one ever.

I dont like the sierra stuff unless it's the only option.

racerone has these 49ci motors down to a science. Maybe he will chime in and steer you right...

I think there was a vertical shaft diameter change or something in that time frame, cqnt remember, he will know.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
38,411
The 955 kit is for the 56 cube newer blocks.-----Contains updates for cooling system.-----That kit is not needed for the 84 model.--------Sierra parts lists do have mistakes.-----I only use factory impellers.-----Water pump impellers are all black , but they are not " all the same " in my opinion.
 

suzukidave

Petty Officer 1st Class
Joined
Jul 1, 2000
Messages
387
The 955 kit is for the 56 cube newer blocks.-----Contains updates for cooling system.-----That kit is not needed for the 84 model.--------Sierra parts lists do have mistakes.-----I only use factory impellers.-----Water pump impellers are all black , but they are not " all the same " in my opinion.

do you mean it has extra parts not needed, or that it is not usable? i can get the oem 955 kit for less.
 
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