ACDelco GM Original Equipment 131-131 Engine Coolant Thermostat
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ACDelco GM Original Equipment 131-131 Engine Coolant Thermostat

4.7/5
Product ID: 16127496
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Details

  • Brand
    ACDelco
  • Model Name
    ACDelco -
  • Controller Type
    OEM
  • Special Feature
    Genuine OEM at
  • Color
    Silver
📶Wi-Fi enabled connectivity
⚙️OEM precision fit
🌡️Accurate thermostatic control

Description

🌟 Drive smarter, not harder — the thermostat GM trusts!

  • SMART CONNECTIVITY - Wi-Fi enabled for advanced monitoring and diagnostics—stay ahead of engine health.
  • COMPACT DURABLE DESIGN - Lightweight, machined silver finish built to last under demanding conditions.
  • SEAMLESS OEM INTEGRATION - Engineered to GM’s exact factory specs for flawless fit and function.
  • GENUINE QUALITY ASSURANCE - Backed by GM’s nationwide warranty for peace of mind wherever you drive.
  • PRECISION TEMPERATURE REGULATION - Maintains optimal engine temperature to boost performance and longevity.

The ACDelco GM Original Equipment 131-131 Engine Coolant Thermostat is a genuine OEM replacement part designed specifically for GM vehicles. Manufactured in Japan to meet GM’s strict specifications, it ensures precise temperature control and reliable engine performance. Featuring Wi-Fi connectivity for enhanced diagnostics and backed by a nationwide warranty, this compact, machined thermostat guarantees durability and seamless integration with your vehicle’s cooling system.

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Specifications

BrandACDelco
Model NameACDelco - Engine Coolant (Slp) (131-131)
Controller TypeOEM
Special FeatureGenuine, OEM part with nationwide warranty at any licensed dealership
ColorSilver
Temperature Control TypeThermostatic
Connectivity TechnologyWi-Fi
Included ComponentsACDelco - Engine Coolant (Slp) (131-131)
Power SourceHardwire
Item Weight0.2 Pounds
Voltage12 Volts (DC)
ShapeCylindrical
Display Typeanalog
Control MethodTouch
Connectivity ProtocolWi-Fi
Mounting TypeStud Mount" or "Threaded Mount
BacklightNo
UPC021625400228
Global Trade Identification Number00021625400228
ManufacturerACDelco
Item Weight3.2 ounces
Product Dimensions4.5 x 4 x 2 inches
Country of OriginJapan
Item model number131-131
Is Discontinued By ManufacturerYes
ExteriorMachined
Manufacturer Part Number131-131
OEM Part Number97241130
Special FeaturesGenuine, OEM part with nationwide warranty at any licensed dealership
National Stock Number6685-01-521-0216

Reviews

4.7

All from verified purchases

M**R

Matched original 2002 duramax

Identical replacement to the one that came out of my 2002 Chevy 2500HD Duramax. My original thermostat got stuck open, so it would take 30+ minutes for engine temp to get up over 165 degf, which is too cold for this engine to run. Once swapped out with this one ( and also swapped out the other thermostat - there are two thermostats side by side under the same housing in this engine, one opens at 182 and the other 185 degf), engine got up to temperature like it should in 10 minutes or so.Changing this was fairly easy. I drained the coolant by removing lower radiator hose (there is a drain Petcock on the bottom of the radiator, bit after breaking a few of these on other vehicles, I always just pull the lower radiator hose). Pulled intake resonance chamber, alternator positive cable, and unplugged a few wiring connections. After that, was able to pull thermostat housing, scrape clean with razor blade, and out back together. You don't need any gasket on the thermostat housing - rubber thermostat gasket supplied with parts is all you need.Refill coolant 50/50 dexron and distilled water then bled air out of engine block (there is an air bleed bolt on top of the thermostat housing you can use to do this). After air bled, started engine, let warm up until thermostats opened ( can feel upper radiator hose get warm). Once thermostats open, it will suck down about held the coolant reservoir, so make sure it's full.All in all, easy job. Took about 4 hrs. Fixed the issue.

S**7

Seems to Work Fine

This was for my 2012 Duramax Diesel and is the rear thermostat in the thermostat housing. This is a 180 deg stat and the front one was 185 deg. I was unaware I had a problem until the truck set a code for low engine temperature. When you change this thermostat you need to change them both. This product came in a unmarked box with GM numbers on the top. It fit and looks like the OEM and so far is working fine.

M**E

Nice replacement

Fit me 2015 sierra 6.6

G**E

OEM Duramax Thermostat

OEM replacement for my 2004.5 LLY Duramax Diesel engine. Operated flawlessly at the appropriate temperature.Don't forget there are two different thermostats needed! (Other ACDelco thermostat needed Part #131-163)

C**O

You also need the ACDelco 131-163

For an LB7 (early 2000's) Duramax, you need two different thermostats that fit in the same housing. There is no traditional housing gasket--the thermostats have a rubber gasket around their circumference which acts as a gasket. I've had this truck since new, 13 years now, and it has never gotten near normal operating temp when the ambient temperature is below about 50 degrees F. I swapped in these thermostats and now the truck quite quickly gets close to summer engine temps even in ambient temps of the low 30's, which is about as cold as it gets here.The thermostats are not marked AC Delco, but they look identical to the factory parts and work better, so I am happy.

R**E

Fit

Works

A**R

Ignore the off brands and stick with GM original equipment.

I read enough bad reviews of the off brand thermostats that I decided to stick with GM original equipment. Pay attention to the orientation when installing. Very easy job to do yourself and save some money. Temperature stability has been perfect since I changed both thermostats.

I**P

Good Fit

I was driving around my LB7 Duramax for years with the thermostats stuck open, the truck never warmed up LOL. Finally I replaced it with these, wasn't too bad of a job and the fit was good, the truck warms up like it should now.

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Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Acdelco Gm Original Equipment 131 131 Engine Coolant Thermostat | Desertcart South Africa