🚗 Keep Your Cool with GM's Best!
The ACDelco GM Genuine Parts 15-11057 Engine Coolant Thermostat Water Inlet Assembly is a high-quality replacement part designed to repair leaking thermostat housings and prevent engine overheating. Manufactured to GM's original equipment specifications, this lightweight assembly ensures a perfect fit and reliable performance for your GM vehicle.
| Brand | GM Parts |
| Material | Basic |
| Item Weight | 0.66 Pounds |
| Vehicle Service Type | Basic |
| Weight Class | Lightweight |
| Global Trade Identification Number | 40707773594795 |
| Manufacturer | AC Delco |
| OEM Part Number | 12600172 |
| UPC | 707773594797 |
| Model | Water Inlet Assembly |
| Item Weight | 10.6 ounces |
| Product Dimensions | 6.2 x 4.1 x 4.1 inches |
| Country of Origin | China |
| Item model number | 15-11057 |
| Exterior | Machined |
| Manufacturer Part Number | 15-11057 |
A**L
a perfect replacement
Perfect fit to my new Water pump. Operates very well.
J**N
OEM QUALITY
Works as it should. Fits properly. Would be nice if it included the hardware as I had to source those separately.
D**O
Feels like quality
Feels like quality, fits the ac delco water pump perfectly.
D**K
Good deal
Good fit
A**R
Gm parts
New in box as expected, it is 2 pieces, the thermostat and the housing they are just pictured with the tstat inserted into the outlet housing. Easy install and better than murray brand.
A**.
Did not fit.
Quality seems good, but it did not fit my son's 2003 Silverado with a 5.3L engine. His truck has the "integrated" thermostat/housing. Didn't realize this until after I purchased this new one and attempted to replace it while replacing the water pump. Had to pick up the correct thermostat at the local auto part store. Product page did say it fit this truck, and I'm sure in some cases it would. Just not in my case.
R**G
Genuine GM part
Thermostat worked well but wasn’t the problem
J**N
Thermostat
Started opening around 195 degrees. Fully opened at 200 degrees. Closed around 185 degrees.
