🌟 Keep your GM running cool, calm, and collected—because your ride deserves the best!
The ACDelco GM Original Equipment 131-121 Engine Coolant Thermostat is a precision-engineered, GM-recommended replacement part designed to regulate coolant flow and maintain your engine’s ideal operating temperature. Built to exact GM OE specifications, it guarantees perfect fit, reliable performance, and durability, ensuring your vehicle runs efficiently and smoothly.
| Brand | ACDelco |
| Model Name | ACDelco - Engine Coolant (Slp) (131-121) |
| Controller Type | touch |
| Color | Black |
| Temperature Control Type | automatic |
| Included Components | ACDelco - Engine Coolant (Slp) (131-121) |
| Item Weight | 3.2 ounces |
| Shape | Cylindrical |
| Display Type | digital |
| Control Method | Touch |
| Backlight | No |
| UPC | 036666963472 |
| Global Trade Identification Number | 00036666963472 |
| Manufacturer | ACDelco |
| Product Dimensions | 3.1 x 2.1 x 2 inches |
| Item model number | 131-121 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 131-121 |
| OEM Part Number | 12559575 |
D**E
Works great
Yep. Buy again
K**R
Thermostat
Great thermostat
M**R
Works excellent
An AC Delco for such a great price. It's OEM quality and fits perfectly. If you know how to do it, install was easy and helped the heating and cooling. Performs well.
P**D
Less than dealer $$
Working like OEM
K**©
Right part,for right motors
Does what. It should !
C**N
OEM
OEM
M**L
Doesn't Fit!
Not the correct size, even though I have the exact make and model in Amazon and it said it would fit!!!!
J**R
Work great so far
I've had a lot of problems with aftermarket thermostats so I bought this GM one. It works perfect so far. I've got about 3000 miles on it. I replaced an unknown brand aftermarket one that the previous owner installed. It was too cold but was working.
Trustpilot
1 day ago
3 days ago
