Window switch part check

linda · October 3, 2017

At some point, GM made a regular cab truck with the DL3 option, power folding mirrors. I am trying to find out what year this may have been and any other details one may have. I know they did because I found a few windows switches that could have only came in that configuration. All extended and crew cabs had power rear windows for a total of (4) window switches. This switch (photo attached) only has provisions for (2) windows but with power folding mirrors. This must have been a regular cab with power folding mirrors but I have no idea what year(s) they did this.

The part number for this switch is 20877338 or 20835557

newdude · October 3, 2017

2003-2006 and 2007 (classic) was the last year to my knowledge. GMT-800 body.

newdude · October 3, 2017

Doing some further digging with GM however...20835557 appears to be a two window switch, with power fold mirror and door lock, just like the picture you posted above (minus the trim piece). The catalog shows 2007-2013 model year for the switch. Further investigating, the panel piece that the switch sits in shows 2007-2008 only. The ebony trim and titanium trim color plates are discontinued, the cashmere shows as good still.

So...going off the door panel switch plate pieces, 2007-2008 for the GMT-900 trucks. I combed through 2009-2014 regular cab stuff, and the DL3 was gone on all those years.

The strange thing, I don't think I've ever seen one? I had two GMT-800 (why I mentioned them above) that had them on a regular cab, but I've never seen a GMT-900 with them.

linda · October 3, 2017

Doing some further digging with GM however...20835557 appears to be a two window switch, with power fold mirror and door lock, just like the picture you posted above (minus the trim piece). The catalog shows 2007-2013 model year for the switch. Further investigating, the panel piece that the switch sits in shows 2007-2008 only. The ebony trim and titanium trim color plates are discontinued, the cashmere shows as good still.

So...going off the door panel switch plate pieces, 2007-2008 for the GMT-900 trucks. I combed through 2009-2014 regular cab stuff, and the DL3 was gone on all those years.

The strange thing, I don't think I've ever seen one? I had two GMT-800 (why I mentioned them above) that had them on a regular cab, but I've never seen a GMT-900 with them.

I know, right? Welcome to my world of confusion.

I also had a GMT800 regular cab with folding mirrors.

Obviously they made a GMT900 platform truck with a standard cab (or maybe ext. cab?) that had a (2) window switch with the DL3 option..... otherwise the switch itself would not exist. Just can not for the life of me find an example of one. My end goal here is to locate the door harnesses that go with the switches but I am trying to work my way backwards. If I had a VIN of a truck with this option I could get the harnesses but I do not.

EDIT****

Also, the bezel part numbers 20922505 or 20877673 should come back as ebony and good for model years 2010 - 2013 if I am looking at the reference correctly.

Thanks for the help and insight!

linda · October 5, 2017

Doing some further digging with GM however...20835557 appears to be a two window switch, with power fold mirror and door lock, just like the picture you posted above (minus the trim piece). The catalog shows 2007-2013 model year for the switch. Further investigating, the panel piece that the switch sits in shows 2007-2008 only. The ebony trim and titanium trim color plates are discontinued, the cashmere shows as good still.

So...going off the door panel switch plate pieces, 2007-2008 for the GMT-900 trucks. I combed through 2009-2014 regular cab stuff, and the DL3 was gone on all those years.

The strange thing, I don't think I've ever seen one? I had two GMT-800 (why I mentioned them above) that had them on a regular cab, but I've never seen a GMT-900 with them.

Would you mind checking these numbers and see what comes back?

GM 22912629 - Left Side

GM 22912635 - Right Side

I think these may be the reg cab with DL3 harnesses for 07.5 - 2013