Dorman 604-107 HVAC Blend Door Actuator Compatible with Select Models

DYI: perfect fit for my 1995 GMC K1500 (same as Chevy version).PART: Part same size/shape as original, with one exception. Main sleeve attached to gear was a metal/plastic combo on original, which I read and have experienced breaks easily due to both materials heating & cooling at different rates. New part is all plastic, which actually may prove an advantage and avoid this problem.INSTALL: Instructions provided vague, and trip to Dorman.com website did not help much. You see, this part is used a two different places on these pickups. MAKE CERTAIN to turn on key, then shut off all HVAC/fan controls, then remove key and REMOVE a battery cable (if you turn on HVAC/FAN during install, you will regret it (messes with alignment, and you will go nuts).1) MODE DAMPER (controls air to blow at floor/dash, defrost/combo). It's the one where your right foot is (just above and to the right of your throttle pedal). That one is easy - remove two bolts disconnect connector and off, reverse to install.2) TEMPERATURE DAMPER (controls mix of hot/cold air): Mine was of course this harder one, behind the ash tray part of the dash. For this, instructions say to "roll dash forward", which come to find out means take loose ENTIRE dash and move it forward to access.MUCH BETTER METHOD AVAILABLE. Simply remove glove compartment (open door, slide/remove cable on left side, squeeze-in back of glove box until it falls out toward you and lift whole assembly out (reverse to reinstall). Remove ashtray (open and squeeze-in back at sides). Now you have two open, but confined, access points to replace this damper part. You need a midget (small) socket set with 5/32 socket and long extension to remove the one bolt via ashtray. Next I used same socket and midget ratchet alone and remove second bolt, one click at a time. remember, I said SMALL access available. After skinning your knuckles, remove wire connector (pull tab on top/back up first to loosen). Now part comes out, and you question your sanity. Have patience, Grasshopper - go to your happy place. In my case, I had to make the sleeve match (the white plastic hollow hole at top of part's picture). New part was aligned differently, so simply took loose four screws and manually pulled out gear and turned until it's position matched the removed old part. IF you try part and it won't 'notch' into place, this is likely what you'll have to do as well. Once I did this, part 'notched' into place and I reinstalled bolts (tip----you may have to use tiny bit of tape to hold bolt in socket until you get it started in its hole). Finish by reinstalling ashtray, glovebox, and battery cable. Start vehicle, and check operation. Mine was golden, and trust yours will be, too.OVERALL: Part works great, price great, install saves hundreds in shop bills. Wonderful way to build character.

Mode door actuator Worked for my 1998 tahoe lt 4dr 4wd.

Product is sturdy and feels well made. The fitment is perfect and it works well. The motors are silent for quiet operation.

This worked like a charm for my 1st gen 2000 GMC Yukon Denali. My vent fans were stuck on the floor vent and I was unable to switch vent locations to defrost or upper vents. A quick Google search told me that it was the mode door actuator which is located under driver side dash to the upper right of the gas pedal, which is easily accessible. Took less than five minutes to install. just unplug and two screws to remove for an easy swap. Be sure to turn off all fan controls before the install. Do not turn it on until new part is installed or it will be misaligned and you will have a pain in the ass realigning it.

Very good brand and great buy!

1997 Chevy 2500. Vent door actuator.For these vehicles the blend door actuator and vent door are the same part number. The old factory one was non-functional. After receiving this part I spent 5-10 mins swapping the old with the new.If you replace your vent door actuator you will need to cycle the locator knob, slowly, a couple times after cranking the vehicle. This will allow the unit to orient itself properly.

So the problem that had was that there are seven pins in the OEM one that I had. This one had five and spots for the other two. I couldn't find a wiring diagram for the system. I had to take the chance. After reading the mounting/alignment instructions it slipped right in. Works perfectly so far. Im still wondering what the unused two spots are for? Its a 97 Chevy 3500 and now I can direct where the heat comes out. Defroster, dash vents or floor.

Exact replacement