A/C Evaporator Differences

[s2cmpugh]

Good day everyone. I'm in the process of "refreshing" my a/c system and when I went to order a new evaporator, I noticed that Rockauto sells two different types. One is called a flange mount type and the other is called a pad mount type. What's the difference between these two and how do I know which one to order?

http://www.rockauto.com/catalog/moreinfo.php?pk=814147&cc=1167106

http://www.rockauto.com/catalog/moreinfo.php?pk=814190&cc=1167106

In addition, ackits.com sells two different ones as well:

https://www.ackits.com/pc/27-28070/Honda91accord2-2/27-28070+-+Evaporator+Core

https://www.ackits.com/pc/27-24007/Honda91accord2-2/27-24007+-+Evaporator+Core

When I look for one from Honda, I only see one listed as far as part numbers go.

Any ideas?

[Jarrett]

They are different depending on whether or not your car came with a Denso or Hadsys A/C compressor. If your car was not a '93 EX/SE then it's a Denso.

[jdmfreak]

DX and LX models use the screw on fitting type. EX and SE models use the flange type mounts.

[s2cmpugh]

Mine is a 91 EX, so I'm guessing I have a Denso compressor and I need to order the Flange type mount evaporator? Is Rockauto considering the Flange type and Pad mount type to be the same?

[jdmfreak]

Flange and pad mount are the same. Look at your firewall and check the fittings before you place your order.