Finish Selecting Your Vehicle to Shop For Your Thermostat

Choose a Year for your GMC 's Thermostat

  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005
  • 2004
  • 2003
  • 2002
  • 2001
  • 2000
  • 1999
  • 1998
  • 1997
  • 1996
  • 1995
  • 1994
  • 1993
  • 1992
  • 1991
  • 1990
  • 1989
  • 1988
  • 1987
  • 1986
  • 1985
  • 1984
  • 1983
  • 1982
  • 1981
  • 1980
  • 1979
  • 1978
  • 1977
  • 1976
  • 1975
  • 1974
  • 1973
  • 1972
  • 1971
  • 1970
  • 1969
  • 1968
  • 1967
  • 1966
  • 1965
  • 1964
  • 1963
  • 1962
  • 1961
  • 1960
  • 1959
  • 1958
  • 1957
  • 1956
  • 1955
Show More Years

Shop By Brand

The Following brands are available based on your search.

  • ACDelco
    ACDelco
  • Beck Arnley
    Beck Arnley
  • Facet
    Facet
  • Gates
    Gates
  • Hypertech
    Hypertech
  • Motorad
    Motorad
  • Stant
    Stant

Best Selling Genuine Gmc Thermostats

  • We Stock the following top leading brands, including ACDelco
  • Constantly Updated Inventory of Gmc Replacement Thermostat Parts

ACDelco
1997 GMC C3500 Engine Coolant Thermostat 8 Cyl 7.4L ACDelco

P311-0438E89    W0133-1694589  New

Qty:
25.44
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
1997 - GMC C3500 V 8 Cyl 7.4L 454 -
ACDelco
1997 GMC P3500 Engine Coolant Thermostat 8 Cyl 7.4L ACDelco

P311-0438E89    W0133-1694589  New

Qty:
25.44
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; with RPO L29
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
1997 - GMC P3500 V 8 Cyl 7.4L 454 -
ACDelco
2002 GMC C3500HD Engine Coolant Thermostat 8 Cyl 8.1L ACDelco

P311-0438E89    W0133-1694589  New

Qty:
25.44
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Incl.Gasket
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2002 - GMC C3500HD V 8 Cyl 8.1L 496 -
ACDelco
2002 GMC Sierra 1500 Engine Coolant Thermostat 8 Cyl 6.0L ACDelco

P311-03992A8    W0133-1686955  New

Qty:
73.05
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; with Integrated Housing Design
  • Includes Coolant Outlet Housing and O-Ring. Used On Pumps with Casting # 12562459. If Water Pump Has Been Replaced By 2004 or Newer Pump, Must Also Use 2004 or Newer Inlet.
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2002 - GMC Sierra 1500 V 8 Cyl 6.0L 364 5967
ACDelco
2006 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 6.0L ACDelco - w/o O-Ring

P311-3D33C49    W0133-1783286  New

Qty:
40.26
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; w/o Housing
  • w/o O-Ring
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2006 - GMC Sierra 3500 V 8 Cyl 6.0L 364 5967
ACDelco
2003 GMC Savana 2500 Engine Coolant Thermostat 8 Cyl 5.3L ACDelco - w/o O-Ring

P311-3D33C49    W0133-1783286  New

Qty:
40.26
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Except Integrated Housing Design

    w/o Housing
  • w/o O-Ring
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2003 - GMC Savana 2500 V 8 Cyl 5.3L 325 5328
ACDelco
2004 GMC Sierra 1500 Engine Coolant Thermostat 8 Cyl 4.8L ACDelco - w/o O-Ring

P311-3D33C49    W0133-1783286  New

Qty:
40.26
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • w/o O-Ring
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - GMC Sierra 1500 V 8 Cyl 4.8L 294 -
ACDelco
2004 GMC Savana 1500 Engine Coolant Thermostat 8 Cyl 5.3L ACDelco

P311-3787E2C    W0133-1783287  New

Qty:
75.42
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; with Housing
  • Includes Coolant Outlet Housing and Gasket
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - GMC Savana 1500 V 8 Cyl 5.3L 325 5328
ACDelco
2004 GMC Sierra 2500 Engine Coolant Thermostat ACDelco

P311-3787E2C    W0133-1783287  New

Qty:
75.42
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • Includes Coolant Outlet Housing and Gasket
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - GMC Sierra 2500
ACDelco
2002 GMC Sierra 1500 Engine Coolant Thermostat 8 Cyl 4.8L ACDelco

P311-3787E2C    W0133-1783287  New

Qty:
75.42
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Except Integrated Housing Design

    with Housing
  • Includes Coolant Outlet Housing and Gasket
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2002 - GMC Sierra 1500 V 8 Cyl 4.8L 294 -
ACDelco
1998 GMC Jimmy Engine Coolant Thermostat ACDelco

P311-5123BC4    W0133-1972134  New

Qty:
37.31
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle
1998 - GMC Jimmy
ACDelco
1996 GMC P3500 Engine Coolant Thermostat 8 Cyl 5.7L ACDelco

P311-5123BC4    W0133-1972134  New

Qty:
37.31
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; with RPO L31
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
1996 - GMC P3500 V 8 Cyl 5.7L 350 -
ACDelco
2008 GMC Yukon XL 2500 Engine Coolant Thermostat ACDelco

P311-0277E91    W0133-1821992  New

Qty:
77.30
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • Includes Gasket
Brand: ACDelco
Additional Fitment Information:
Vehicle
2008 - GMC Yukon XL 2500
ACDelco
1998 GMC C3500 Engine Coolant Thermostat 8 Cyl 7.4L ACDelco - 195F / 91C NLA

P311-0438E89    W0133-1694589  New

Qty:
25.44
ACDelco Engine Coolant Thermostat
  • Gold (Professional)
  • 195F / 91C NLA
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
1998 - GMC C3500 V 8 Cyl 7.4L 454 -
ACDelco
2004 GMC Sierra 3500 Engine Coolant Thermostat 8 Cyl 8.1L ACDelco - 195F / 91C

P311-0438E89    W0133-1694589  New

Qty:
25.44
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • 195F / 91C
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2004 - GMC Sierra 3500 V 8 Cyl 8.1L 496 -
ACDelco
1997 GMC P3500 Engine Coolant Thermostat 8 Cyl 7.4L ACDelco - 195F / 91C NLA

P311-0438E89    W0133-1694589  New

Qty:
25.44
ACDelco Engine Coolant Thermostat
  • Gold (Professional)
  • ; with RPO L29
  • 195F / 91C NLA
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
1997 - GMC P3500 V 8 Cyl 7.4L 454 -
ACDelco
2002 GMC C3500HD Engine Coolant Thermostat 8 Cyl 8.1L ACDelco - 195F / 91C

P311-0438E89    W0133-1694589  New

Qty:
25.44
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
  • ; Incl.Gasket
  • 195F / 91C
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2002 - GMC C3500HD V 8 Cyl 8.1L 496 -
ACDelco
2009 GMC Canyon Engine Coolant Thermostat 4 Cyl 2.9L ACDelco

P311-1A388FE    W0133-1972338  New

Qty:
79.65
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - GMC Canyon L 4 Cyl 2.9L 178 2921
ACDelco
2015 GMC Terrain Engine Coolant Thermostat 4 Cyl 2.4L ACDelco

P311-1D50E6E    W0133-1866553  New

Qty:
93.91
ACDelco Engine Coolant Thermostat
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2015 - GMC Terrain L 4 Cyl 2.4L 145 2384
ACDelco
1997 GMC Savana 1500 Engine Coolant Thermostat ACDelco

P311-5123BC4    W0133-1972134  New

Qty:
37.31
ACDelco Engine Coolant Thermostat
  • Gold (Professional)
Brand: ACDelco
Additional Fitment Information:
Vehicle
1997 - GMC Savana 1500

Latest Car Advice

CarJunky AutoAdvice

92 gmc sonoma

Showing 9 out of 10 Posts | Show 1 Hidden Posts
Question From rrehlechar on 92 gmc sonoma

i changed my thermostat, oreilly told me they didnt have gasket for the thermostat housing so i put it back together without one, now it leaks alot and i stripped one of the bolts and cant get it off. i purchased bolt out and i cant get it to grip on the bolt, not that it matters but i am a ingle mom with no other mode of transportation, please help asap!!!!!!!!!!!!!!!!

Response From Hammer Time Top Rated Answer

If it doesn't have a paper gasket, then it uses a rubber O-ring but it definitely has something to seal it. If you damaged the bolt now, you will likely have to tow it to a shop.

Response From rrehlechar

well that sucks!! there is no way for me to use the bolt out? can i hammer it on? i have a replacement bolt...

Response From Hammer Time

Haven't you done enough damage already? NO, you can't hammer on it.

Response From rrehlechar

wow kinda rude....but ok thank you for ur help

Response From rrehlechar

i meant hammer the bolt out onto the bolt by the way not hammer on the bolt

Response From Discretesignals

Did you round off the head of the bolt?

Response From rrehlechar

mostly yes, talked to a shop they said i could tap they bolt out on tho bolt but could snap head of bolt off!!!

Response From Discretesignals

You might be able to use a socket that is a little bit smaller than the head of the bolt. Then hammer the socket onto the head of the bolt and try to loosen it. Put some penetrating oil on there too.

Don't beat on it too hard or you'll be buying an intake manifold.

Response From rrehlechar

ok thank you very much!

2003 GMC Envoy, V6

Showing 2 out of 6 Posts | Show 4 Hidden Posts
Question From JS_GMC on 2003 GMC Envoy, V6

I have an '03 GMC Envoy. The fan seems to be stuck on high speed. The problem is persistent and will not go away. I seem to believe it could be the fan clutch. Any ideas? Thanks.

Response From Hammer Time

Are you talking about the cooling fan on the engine or the blower fan for the A/C inside?

Response From JS_GMC

The cooling fan on the motor. It is running constantly, on high speed it seems. The car is very loud when accelerating.

Response From Hammer Time

That's not that unusual. There really isn't a good way to test the fan clutch for pull too much air. You could try a new one but you may be wasting your money.

Response From JS_GMC

Do you know if it could be something else? The best way i could explain it would be if you were running your a/c on full blast during the summer months, and after a while of running the a/c, the engine fan starts blowing real fast. You can only hear it during accelerations.

Response From Hammer Time Top Rated Answer

That pretty much sounds like the way it's supposed to act. Your just hearing the fan pulling air. It designed to lock at full speed most of the time with the thermostat built into it.

83 gmc truck no heat

Showing 2 out of 4 Posts | Show 2 Hidden Posts
Question From jkkennedy on 83 gmc truck no heat

Hello I have I 1983 gmc c1500 truck 5.0 engine I have all of the hose hook up and took of the the heatercore to see if maybe plug blow on one end of hose water came out easy you turn on the heat and the thing blow warm for just a min and then cold air comeing out of it let truck run for 30 min felt the water in the rader it was just warm not hot.

Response From Tom Greenleaf Top Rated Answer

Coolant must be full at radiator and can take a cycle or two to burp out air after being open. Is heater truly cold or just lukewarm? From cold, upper radiator hose should stay cold to the touch till engine approaches the thermostat's rating, typically about 195F for this engine.

If the hose warms up early then the thermostat is letting coolant pass too early to be cooled when already not warm enough,

T

Response From jkkennedy

The radiator is full and the heater is truly cold just put a new thermostat that is a one 195f thinking maybe this is what it was but no still cold air no heat at all check the bypass door it is hook and working so that not it so what to do next

Response From Tom Greenleaf

Does your temp gauge stay steady? Are heater hoses at least warm. Should be about too hot to touch - careful. I think temp blending (for heater) is mechanical (cable) but can't be sure on this one. Rare but there are water pumps that will be directional and wrong or impellers not up to snuff,

T