Just Right
Replaces
About TRQ:
TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Returns: Parts with electrical components cannot be returned once installed.
Left Hand Drive:
All of our auto parts are intended for Left Hand Drive USDM vehicles. If your vehicle is Right Hand Drive, please ensure the part is correct for your specific vehicle.
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
This part fits 14 vehicles spanning 1994-2011.
| Year | Make | Model | Description |
|---|---|---|---|
| 2002-2004 | Ford | Expedition | Ford Expedition Rear Auxiliary Heater HVAC Blend Door Actuator TRQ HCA40126 |
| 1995-2001 | Ford | Explorer | Ford Explorer with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 2002 | Ford | Explorer | Ford Explorer To 3/01/02 Production Date Rear Auxiliary Heater HVAC Blend Door Actuator TRQ HCA40126 |
| 2001-2005 | Ford | Explorer Sport Trac | Ford Explorer Sport Trac HVAC Blend Door Actuator TRQ HCA40126 |
| 1995-2011 | Ford | Ranger | Ford Ranger with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 2002-2004 | Lincoln | Navigator | Lincoln Navigator Rear Auxiliary Heater HVAC Blend Door Actuator TRQ HCA40126 |
| 1995-1997 | Mazda | B2300 Truck | Mazda B2300 Truck with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 2001-2009 | Mazda | B2300 Truck | Mazda B2300 Truck with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 1998-2001 | Mazda | B2500 Truck | Mazda B2500 Truck with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 1994-1996 | Mazda | B3000 Truck | Mazda B3000 Truck with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 1998-2007 | Mazda | B3000 Truck | Mazda B3000 Truck with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 1994-2009 | Mazda | B4000 Truck | Mazda B4000 Truck with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 1997-2001 | Mercury | Mountaineer | Mercury Mountaineer with Manual Climate Control HVAC Blend Door Actuator TRQ HCA40126 |
| 2002 | Mercury | Mountaineer | Mercury Mountaineer To 3/01/02 Production Date Rear Auxiliary Heater HVAC Blend Door Actuator TRQ HCA40126 |
| Brand Label | Part Number |
|---|---|
| DIY Solutions | HVA01200 |
| Dorman | 604-202 |
| Dorman - OE Solutions | 604-202 |
| Ford | YL5Z19E616AA |
| Ford | F5TZ19E616A |
| Ford | F77Z19E616AA |
| Ford | F87Z19E616BA |
| Ford | YL5H19E616AC |
This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on Orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii, Alaska and US Territories. Shipping is not available to Canada.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii and US Territories as well as P.O. Boxes and APO/FPO/DPO addresses. Final shipping costs are available at checkout.

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Brought to you 1AAuto.com, your source for quality replacement parts and the best service on the internet.
Hi, I'm Mike Green. I'm one of the owners of 1A Auto. I want to help you save time and money repairing and maintaining your vehicle. I'm going to use my 20+ years' experience restoring and repairing cars and trucks like this to show you the correct way to install parts from 1aauto.com. The right parts installed correctly - that's going to save you time and money. Thank you, and enjoy the video.
In this video we'll be showing you how to replace the air temperature door actuator on this '98 Explorer. Same as most Explorers, the Mountaineers and Rangers, this part does fit Expedition and Navigator, and it's probably a similar procedure, but it may be a little different. The only tools you'll need are an 8 mm socket with a ratchet, and an 8 mm wrench, and a plain flat-blade screwdriver.
Open up your glove box, and on each side of your glove box you just push. You can see right back here, there's just little cushions that hold your glove box up. Okay, then your glove box just goes down. Right here you can see this is your actuator. You want to unplug by pushing up on a tab and pulling the clip out. This is the little tab right here, bent on the bottom. You can see here I have my replacement, and you see there's two bolts that go right here, easy enough to see, right there and there. And then there's two spots here. This one's on a post; this one has a bolt in it. And you can see that that one's directly behind your plug. So you take your wrench and just go straight back over the plug, and then you can actually feel if your wrench goes down too far. You know you're not on your bolt. Get it up on top and then just slowly turn until you're on. You're doing it blind, but you're loosening up the bolt.
We'll speed it up here a little bit because you don't need to see me turning that wrench the whole time. At one point I do actually see right here I'm getting the bolt out. Then for the front ones, I loosen them with the ratchet a little bit, and then I do switch over to a wrench. It's just a little easier. At the front there's actually less clearance above, so it's harder to get a socket and ratchet on there. Then you just lift it up and out.
You can actually test your actuator. With the key on, what you can do is -this is the actuator right there- and when you turn your key on and rotate your temperature control knob, you can watch and you can see that little post rotating. If you think about it, that's what controls the door. This actuator actually works fine, so we'll actually put it back into the vehicle, but I want to show you the 1A Auto ones as a comparison first.
Just another note is that if you pull your actuator out and it is broken, it doesn't work, you want to make sure that you get your new actuator to the same position before you put it in, because obviously the post will not slide down into the door correctly unless it's in the same position. Just a quick side-by-side here of the two actuators. The black one is the new one from 1A Auto. You can see they're all the same. They have all the same mounting points; the connector where they plug in is all going to be the same. And you can see here as I plug in the new one from 1A Auto, it will actually take its position. You can see the actuator. Again here the key is still on, and that control's in a different spot, so the actuator takes that position right by itself with the key on.
Now to go and reinstall. I'll just unplug the new one, and since this one is still in good shape, we'll go and reinstall it. Put it up in. We want to get it going straight down and in, and then re-bolt it. Obviously the most difficult one to replace is going to be the back one, and I just put it in there and kind of work it with my two forefingers until it's in. So you're going to feel for the hole back there, put it down in, and then get it started with your forefingers. We'll speed it up again - watch me fly with that ratchet. Then get the other two bolts in the front and use the wrench to get them tight. They don't have to be extremely tight, just nice and firm, and then put the glove box up. Pull on the sides to get them up past the edge of the dash, push it in there, close it up, and you should be all set.
We hope this helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the internet. Please feel free to call us toll free 888-844-3393. We're the company that's here for you on the internet and in person.
Just Right
The service center that I took it to originally claimed that it did not work properly. When I put it to full heat, it still has a clicking sound. However, I'm not absolutely sure that the one I had does not or did not work properly.
I installed this blend door four months ago. It failed recently and was stuck in one position making loud clicking noises. I ordered the OEM part from Ford, which I installed today and that works perfectly.
After installation, the TRQ actuator (HCA40126 for a 2001 Ford Explorer Sport Trac) from 1A Auto fit the vehicle but was not strong enough to move the blend door on the vehicle. I then removed the TRQ actuator and purchased a second actuator (Murray) locally and installed it. The blend door now works perfectly using the Murray actuator. I would like to get a full refund for the defective TRQ actuator.
Shipped fast! Part was exactly what I needed!
Worked and was a perfect fit.
Exactly what I needed , removal of the old was a breeze . Installing the new was @3 out of 5 on difficulty but still only took @30 minutes
worked perfectly on my truck
Perfect order process, delivery, installation and operation. A+
I found your channel on how to change a temperature blend door actuator after watching a Scotty Kilmer video. Your instructions I were comprehensive and easy to follow. I was very pleased to see links to your store and the exact part I needed. The part was competitively priced. Shipping was fast. The part fit perfectly. Thank you.
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