15-11125 (12674639) Water Pump Outlet Assembly with Thermostat
Original price was: $52.20.$47.99Current price is: $47.99.
Price: $52.20 - $47.99
(as of Sep 29, 2025 05:34:26 UTC – Details)
GM Genuine Parts Engine Coolant Thermostate Housing Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
Repairs leaking thermostat housings
GM-recommended replacement part for your GM vehicle’s original factory component
Offering the quality, reliability, and durability of GM OE
Manufactured to GM OE specification for fit, form, and function
Customers say
Customers find the water pump works well, with one reporting successful use in a Yukon 6.2L engine, and they appreciate its perfect fit and good OEM quality. The installation process is straightforward, with one customer noting it takes about five minutes to complete, and they consider it good value for money. The temperature control receives mixed feedback – while some say it holds temperature extremely well, others report issues with the gauge not working properly. The compatibility aspect is also mixed, with one customer confirming it’s a direct replacement for a 2014 5.3L V8.
13 reviews for 15-11125 (12674639) Water Pump Outlet Assembly with Thermostat
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Original price was: $52.20.$47.99Current price is: $47.99.
argo7t3 –
The part was exact fit. Good quality. No issues since installation.
I purchased this to address an issue with constant running radiator fan on 2014 Silverado with the 4.3L V6. It should be noted that the condition can be caused by either the thermostat or the coolant temperature sensor. Replacing either part involves draining and refilling the coolant, so replacing both at the same time could save time and coolant.Other than the annoyance that GM designed a huge plastic chunk where you cannot simply remove and replace a $20 thermostat, this part was an exact replacement for the original part. There were no fitment or operational issues. It was as simple as remove the old and install the new. Just be mindful to not over torque the screws or you will crack the part.
James Stenzel –
Exact replacement. Easy jnstall
Works great. Has lasted longer than non oem parts. Specifically thermostats.
Disappointed –
Good quality and fit
This was a quick fix on a 2016 Chevy suburban for the cooling fans running when truck is shut off. Donât forget the coolant sensor!
Amazon Customer –
Good qaulity
Arrived quick and working great.
Daniel Grover –
Basically an OEM part!
I ordered this for my 2016 Silverado LTZ. I was having issues with the temperature barely getting above 150° most of the time it wouldnât get above 140. And with winter rapidly approaching, I decided to give it a try. Installation was quite simple. This thermostat and housing is a one piece assembly unlike the traditional ones with an aluminum reusable housing, With this particular design you just throw the old housing away and install the whole new assembly. Everything fit perfectly the instructions were straightforward and boy What a difference in heat output. You can barely hold your hand in front of the vent now and she consistently runs at 205*F after if she warms up. Very satisfied.!!!
Dana –
ððð
Great fit”””” no problems highly recommend ððð
shade tree mechanic –
OEM works great
2017 Yukon, taking forever to reach normal operating temp. These newer 5.3 and 6.2 Ecotechs are meant to run around 210* or more, which is why you want to stick with this OEM t-stat that opens at 207*. People freak out when they see temps approaching 220*, but that is actually normal and the temp where most of the time the fans are programmed to kick in. Mine was taking 10 minutes to reach that, hard on the mpg. New t-stat was just like the original, and a very easy job.
Amazon Customer –
it work great
excellent
sushil –
Used in for 2015 gmc Sierra . Check engine light gone . Fits like glove
Amazon Customer –
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sergei r. –
Excelente producto y rapido envio
Abel Dominguez –
Excelente articulo
Geoff Munt –
This was a direct fit replacement for my 2015 Silverado 5.3L engine. Worked perfectly and fixed the truck running cool situation. Just make sure you remove old gasket from original T-stat housing which is usually stuck to the aluminum surface or itâll leak.