Looking through the archives, it appears as though the Four Seasons heater valve pn 74662 is the recommend replacement. Has anyone else tried something different that was as good or better? I have my heater apart and would like to fix this issue.
2 posters
A100 heater valve
OutofSight- Number of posts : 1510
Location : Lake Oroville, Ca.
Registration date : 2015-11-19
- Post n°1
A100 heater valve
rekbender- Number of posts : 49
Location : MILFORD, OH
Age : 74
Registration date : 2018-01-07
- Post n°2
Re: A100 heater valve
I didn't have the original valve, so I used the heater valve for a 1969-1979 Dodge pickup. Four seasons PN 74627, MOPAR PN 4085564 ($10.00 on ebay). It is an in line arrangement, but I was able to plumb it in line with the heater core tubes so the stock control cable worked and the direction of the operating lever was correct. No modifications to the valve. It’s worked perfectly for a year. I can’t find the pictures at this point - they got lost when I migrated everything to a new computer two weeks ago.


OutofSight- Number of posts : 1510
Location : Lake Oroville, Ca.
Registration date : 2015-11-19
- Post n°3
Re: A100 heater valve
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