Motorcraft Part Numbers

[crouse]

Does anyone have the Motorcraft part number for a 180 degree thermostat?

Also, I'm looking for the Motorcraft part number for 1 and 2 step colder plugs than stock.

My local Ford dealer gave me part number AGSF32WMF4 for the stock plug.

I know the AG stands for full thread and from this sheet it looks like WM stands for Single Platinum-Iridium Electrode? Note sure what the F4 stands for. I can't seem to determine what the colder plug part numbers would be.

http://info.rockauto.com/Motorcraft/sparkPlugs.htm

Here is the Motorcraft website.

http://www.motorcraft.com/catalog.do

[Drock96Marquis]

f4 stands for four pack, FYI.


Modular 22 (1 heat range colder) plugs:
Copper:
AGSF-22C (full thread)

Plat:
AGSF-22WM (full thread)
-or-
AGSF22FM1F4 (full thread, four pack)

Modular 12 (2 heat ranges colder) plugs:
Copper:
AWSFA-12C (half thread)

Plat:
AGSF-12EE (full thread, double plat)
Iridium/Plat:
AGSF-12FM1 (full thread, fine wire)


You can use half, or full thread plugs in a half thred head. But you must use a full thread plug in a full thread head.
Stock heat range is 32, 1 step colder is 22, 2 steps is 12.
I would not recommend 2 steps colder unless you run f/i, the plug may run too cold and foul.

[crouse]

Thanks for the info.