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ACDelco

ACDelco GM Original Equipment 15-11073 Engine Coolant Thermostat and Housing Assembly

    • Based on 901 reviews
Condition: New
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Availability: 12 left in stock
Fulfilled by Amazon
Arrives Wednesday, May 22
Order within 20 hours and 53 minutes
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Features

  • Repairs leaking thermostat housings
  • Corrects engine overheating caused by failed thermostat
  • GM-recommended replacement part for your GM vehicles original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Description

ACDelco GM Original Equipment Engine Coolant Thermostat/Water Inlet Assemblies contain the engine thermostat and water inlet housing and are GM-recommended replacements for your vehicle’s original components. The engine coolant thermostat controls the flow of coolant through the radiator to enable the engine to reach and maintain its normal operating temperature. The water inlet housing connects the radiator hoses to the thermostat. For certain applications, the water inlet contains threaded holes or ports for sensors and switches. These original equipment engine coolant thermostat/water inlet assemblies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.


Brand: ACDelco


Item Dimensions LxWxH: 6.3 x 4.3 x 4.3 inches


Item Weight: 0.73 Pounds


Voltage: 230 Volts


Backlight: Yes


Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Item Weight: ‎11.7 ounces


Product Dimensions: ‎6.3 x 4.3 x 4.3 inches


Country of Origin: ‎China


Item model number: ‎15-11073


Manufacturer Part Number: ‎15-11073


OEM Part Number: ‎12622316


Voltage: ‎230 Volts


Date First Available: October 25, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Perfect
Needed a new one for my 2008 Hummer H3. This one fit and works great! I'm very satisfied. I'm giving it a one star for "Easy to Install" because where it is in my truck is an odd place and was a PITA to install
Reviewed in the United States on June 8, 2023 by Kenny D
    • Totally worth doing your self
Review Image by C. Scaffidi C. Scaffidi
The cheapest price I got from local mechanics to replace this Hummer H3 thermostat was $430. The part is only $30-$40. They all said it was because of the amount of labor involved. There is some work involved, but I'm telling you it can be done without too much fuss AS LONG AS YOU HAVE THE CORRECT TOOLS. Most notably, a universal joint socket or commonly called a swivel socket joint. See the picture I attached. You also need about a foot and a half worth of socket extensions. If you get those, you can do this project yourself in about an hour. Other than that, it involves jacking up the vehicle (safely), taking off the front wheel, wheel fender skirt (pop-off clips), skid plate (4 bolts, if you have one), disconnecting the lower radiator hose (remove clamp with pliers and catch the fluid - gets a little messy as fluid runs out), remove the old thermostat at the other end of the hose where it enters the engine block (this is where you will need the swivel socket joint to get to the top bolt), replace it with the new thermostat, and put it all back in reverse order. After you will have to put new radiator fluid back in. Just make sure you use the correct kind. A quick internet search will help you determine what to use. And just like that...$400 saved. ... show more
Reviewed in the United States on May 25, 2022 by C. Scaffidi C. Scaffidi
    • It is a good OEM thermostat.
Can't say I have any bad things to say. Good thing is it works as intended. Definitely easy to install, just make sure you do three things. 1. When you install this, do it on a cold system, hot makes it harder. 2. Make sure you burp your system after installation. 3. Drive for atleast 20 - 30 minutes, let cool completely, then check coolant levels. ... show more
Reviewed in the United States on March 6, 2023 by katanaturbo
    • It works
Good thermostat, good price. Like everyone else, I got a P0128 in my 2005 Chevy Colorado 5cyl. I don't think my original thermostat stuck open, but rather lost its calibration. Driving around with the scan tool connected, I was topping out at a steady 165 degrees everyday. Gauge showed around the 1/4 way mark. I think my normal was just below the 1/2 mark. This new thermostat is said to be a little hotter and it is. I'm now at 196-200. Gauge slightly above the 1/2 mark. Install was ok. I did not remove the tire. I had enough room to work around it. I did remove the wheel well piece. 10mm and some extensions and a universal to remove the stat. If I used my little 1/4 inch drive set, I probably could have gotten away without the universal joint. The bolts were not super tight, I could easily loosen them without putting any muscle behind the wrench. The factory clamps were a bear to release with channel locks. I removed lower hose from radiator and left it still attached to thermostat. Just guide it out from the wheel well. Remember the path you took. I purchased a new hose too, didn't want to take a chance that I might need to cut the old hose. I assembled new hose and stat to the same position as the old and guided it back into position. Holes lined up and hose was in a good position too. I used a little piece of tape to hold the bolts to my wrench for reassembly, and that was it. Factory clamps were the biggest pain of the job. I had regular hose clamps on hand, but just reused the factory clamps. No way they will ever snap or leak. If you choose not to mount the hose to the thermostat outside the truck, you might want to remove that tire so you have more room to struggle with the clamp. The check engine light went out on the next morning drive as soon as it warmed up, so don't reset the code if you are coming up on inspection in a heavy handed emissions state like NY. ... show more
Reviewed in the United States on May 9, 2017 by Southplank
    • Factory thermostat (ACDelco made in Mexico), excellent price, simple fix.
Similar to Sparky's review, I bought this thermostat for my 2005 Colorado (4-cyl) which seemed to have a low coolant temp at normal run. The thermostat was original equipment and the truck has around 160k miles and it seemed to take a long time for the heater to warm in winter. I would occasionally get a PO128 error (coolant taking too long to warm) and the coolant would hover around 160-170 F at 1/4 mark on the temp gauge (I keep a scan gauge plugged in). The replacement keeps the coolant around 198-200 deg, just above 1/2 on the gauge, which should be the normal operating temp. Not having the truck from new, I don't know what the original 'normal' operating temp was and the truck seemed to do fine at 165 except for the PO128. I've read that apparently GM changed the 'normal' operating temp from lower to higher to aid in emissions and increase MPG shortly after 2005. The thermostat comes with the o-ring as seen in the photo, there is no other gasket or sealing required. R&R for this and both radiator hoses took a couple hours because I wasn't in a hurry. It's a simple matter of removing left front tire and splash shield for access. Would be nicer if the radiator had a drain, but removing the lower hose from the rad does the trick. Don't bother trying to remove the hose from the old stat, just unbolt and take the hose/stat off together. Some hoses have a white line to line up the hose with the stat top vane to keep the hose positioned correctly, the hose I got with this stat did not. It was a bit of work to get the new hose on the stat in the correct position, but having it positioned correctly made the bolt holes of the stat line up cleanly with the mount holes in engine (hose is one-way and position is important - new stat to hose, stat to engine, hose to rad... done). You can find a detailed R&R with photos on the 355 nation website (the GM frame code for this truck is 355) tech area; how to's; performance and maintenance. ... show more
Reviewed in the United States on February 25, 2014 by John G

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