Blazer heater upgrade question

[1981CJ5]

Just wondering, what year Blazer heater do I need to do an upgrade to my '81 CJ5? Stock heater just ain't cuttin' it.

 

[avyoung]

73 blazer with 350 engine. Make sure it is the standard duty motor. I got mine at autozone for 16.99 the part # ends in 102 I think pb102 or something like that.

 

[1981CJ5]

is this a difficult upgrade or something that can be done in a day or so? any re-wiring needed or does it hook up just like the stock heater? Thanks

 

[Tug-n-pull]

The only trick is cutting the hole in the fire wall a tad bit bigger. If you know a commercial electrian ask to have them use a knock out set to do this it take all of about a min. to do a clean job that way. I have heard of people useing die cutters saws alls and all sorts of ways. Other than that it is a perfect match up wires and all. Made my CJ as warm as toast. tug

 

[wm69]

# is PM102 at autozone and there is one wire that has a spade plug going to the existing blower motor, and the blazer motor has the same spade plug so wiring is no work at all; just unplug the old motor, put the new one in, and plug you existing wiring right onto it. The only real work is in cutting the hole out for the bigger motor housing. I got the heater duct out and got the new motor installed in it, and then cut the firewall out by drilling holes 1/2" out from the existing hole, then used a dremel to cut between the holes I'd drilled, and then put the heater duct back in and the whole job took me about 2 hours. I ran into a little extra time removing the battery tray (do this as it makes it easier to get to the nuts holding the duct to the firewall), stripping and repainting battery tray, and I also got new heater hose. Might look at getting a new heater core but I left the old one in. I will say that for $17 this is a mod that is well worth doing. Just take your time.

 

[Ragtopman]

is this upgrade for just cjs or wranglers also. My 1991 yj is an ice box

 

[avyoung]

It works with some wrangles into the 90's but I am not sure what year. Do a search there is a link somewere that tells the years.

 

[jeepguy_902003]

you guys have it made in the lower 48. the blower motor costs 39.99 here in alaska. i still haven't found the time to do mine.

 

[Tug-n-pull]

you guys have it made in the lower 48. the blower motor costs 39.99 here in alaska. i still haven't found the time to do mine.

Want me to ship you one. would still save a few bucks with shipping. tug

 

[jeepguy_902003]

i already bought it but just haven't got to put it in yet.