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GMC PartsGMC K25 PartsThermostats

GMC K25 Thermostats

Great cars and trucks like your K25 need great parts.

You bought your K25 because its reliability and trusted quality appealed to your senses; so why would you settle for second rate when it comes to great quality auto parts? Auto enthusiasts appreciate the strong looks built into each GMC, and understand that only the best repair K25 parts will suffice when maintenance needs to be done. Anyone who operates a GMC knows that when it comes to maintaining their vehicle only the most superior replacement parts will do. It's not every day that you discover you need a replacement Thermostats to fix your car or truck.

Don't go too long without fixing your Thermostats... here's why.

Your car or truck has a water-cooled motor, and the device that controls the flow of coolant so that the engine can remain cool is your thermostat. On start-up, the thermostat remains closed; shutting off access to the radiator. This gets the coolant hot so that the engine warms up. Once it reaches an optimal operating temperature, your GMC K25 thermostat then opens up and allows the coolant into the radiator. Now your coolant is part of a constant cycle in your GMC K25 engine that keeps it within a specific range of temperatures that are determined for the engine to achieve the best balance between power, fuel efficiency, and emissions... all thanks to the thermostat.

The things CPD has to differentiate itself.

Select Your YearBuying new GMC parts from www.carpartsdiscount.com means you are taking advantage of the absolute greatest original and aftermarket replacement K25 parts on the internet. Don't let a Thermostats repair spell the end of your car, truck, or SUV, and don't risk lowering its resale value by installing anything but the best replacement parts. At Car Parts Discount, we have real customer support agents on the phone with enough expertise to help you select the correct GMC K25 part for your project or repair. All the GMC K25 Thermostats parts on this page will fit vehicles made in 1982, 1978, 1977, 1976, 1975. Choose your year below to refine your search.

Info: Select your make and model in the red title bar above so we can show the parts you need.
Select Your Year
Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 300-160
1.35, Save 41%   NEW ITEM
OEM: 300-160, Item: 1405010
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 300-180
1.35, Save 41%   NEW ITEM
OEM: 300-180, Item: 1405011
  Only 5 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 300-195
1.35, Save 41%   NEW ITEM
OEM: 300-195, Item: 1405012
  Only 3 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 13006Stant
1975-1978 GMC K25 Stant Engine Coolant Thermostat 13006
1.95, Save 38%   NEW ITEM
OEM: 13006, Item: 1201190
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 13008Stant
1975-1978 GMC K25 Stant Engine Coolant Thermostat 13008
1.95, Save 38%   NEW ITEM
OEM: 13008, Item: 1201191
  In Stock, Usually ships within 1 business day
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GMC K25 Engine Coolant Thermostat, OEM: 13009Stant
1975-1978 GMC K25 Stant Engine Coolant Thermostat 13009
1.95, Save 38%   NEW ITEM
OEM: 13009, Item: 1201192
  In Stock, Usually ships within 1 business day
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GMC K25 Engine Coolant Thermostat, OEM: 12TE1BACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12TE1B
2.15, Save 40%   NEW ITEM
OEM: 12TE1B, Item: 885094
  In Stock, Usually ships within 1 business day
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GMC K25 Engine Coolant Thermostat, OEM: 12TE1DACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12TE1D
2.15, Save 40%   NEW ITEM
OEM: 12TE1D, Item: 885095
  In Stock, Usually ships within 1 business day
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GMC K25 Engine Coolant Thermostat, OEM: 12TE1EACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12TE1E
2.15, Save 40%   NEW ITEM
OEM: 12TE1E, Item: 890423
  In Stock, Usually ships within 1 business day
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Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 200-160
2.25, Save 42%   POPULAR
OEM: 200-160, Item: 1404893
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 200-195
2.35, Save 39%   NEW ITEM
OEM: 200-195, Item: 1404895
  Only 7 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 200-180
2.45, Save 40%   NEW ITEM
OEM: 200-180, Item: 1404894
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 33508Gates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33508
2.85, Save 39%  
OEM: 33508, Item: 667740
  Only 9 left In Stock, Usually ships within 1-2 business days
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GMC K25 Engine Coolant Thermostat, OEM: 33509Gates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33509
2.85, Save 39%   NEW ITEM
OEM: 33509, Item: 675470
  Only 1 left In Stock, Usually ships within 1-2 business days
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GMC K25 Engine Coolant Thermostat, OEM: 13352Stant
1975-1978 GMC K25 Stant Engine Coolant Thermostat 13352
3.35, Save 41%   NEW ITEM
OEM: 13352, Item: 642456
  Only 1 left In Stock, Usually ships within 1-2 business days
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GMC K25 Engine Coolant Thermostat, OEM: 33006Gates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33006
3.45, Save 40%   NEW ITEM
OEM: 33006, Item: 621043
  Only 9 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 33008Gates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33008
3.45, Save 40%   NEW ITEM
OEM: 33008, Item: 667724
  Only 4 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 33009Gates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33009
3.45, Save 40%   NEW ITEM
OEM: 33009, Item: 669899
  Only 3 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 13356Stant
1975-1978 GMC K25 Stant Engine Coolant Thermostat 13356
3.55, Save 39%   POPULAR
OEM: 13356, Item: 383500
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 12T1DACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12T1D
3.55, Save 39%   NEW ITEM
OEM: 12T1D, Item: 885136
  In Stock, Usually ships within 1 business day
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GMC K25 Engine Coolant Thermostat, OEM: 12T1FACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12T1F
3.55, Save 39%   NEW ITEM
OEM: 12T1F, Item: 1215357
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 12T1BACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12T1B
3.65, Save 41%   NEW ITEM
OEM: 12T1B, Item: 885135
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 12T1EACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12T1E
3.65, Save 40%   NEW ITEM
OEM: 12T1E, Item: 890426
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Gates Engine Coolant Thermostat, OEM: 33010Gates
1975-1978 GMC K25 Gates Engine Coolant Thermostat
3.75, Save 39%   NEW ITEM
OEM: 33010, Item: 242852
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 2000-160
3.95, Save 40%   NEW ITEM
OEM: 2000-160, Item: 1404889
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 2000-180
3.95, Save 40%   NEW ITEM
OEM: 2000-180, Item: 1404890
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 2000-195
3.95, Save 40%   NEW ITEM
OEM: 2000-195, Item: 1407570
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 33006SGates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33006S
4.55, Save 40%   NEW ITEM
OEM: 33006S, Item: 667723
  Only 6 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 33008SGates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33008S
4.55, Save 40%   NEW ITEM
OEM: 33008S, Item: 667725
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 33009SGates
1975-1978 GMC K25 Gates Engine Coolant Thermostat 33009S
4.55, Save 40%   NEW ITEM
OEM: 33009S, Item: 667726
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 12TP1BACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12TP1B
4.65, Save 40%   NEW ITEM
OEM: 12TP1B, Item: 885117
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 12TP1DACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12TP1D
4.65, Save 39%   NEW ITEM
OEM: 12TP1D, Item: 885118
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 12TP1EACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 12TP1E
4.75, Save 39%   NEW ITEM
OEM: 12TP1E, Item: 890424
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 7200-160
5.75, Save 40%   NEW ITEM
OEM: 7200-160, Item: 1409345
  Only 7 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 7200-180
5.75, Save 40%   NEW ITEM
OEM: 7200-180, Item: 1405138
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 7200-195
5.85, Save 39%   NEW ITEM
OEM: 7200-195, Item: 1409346
  In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: 131-87/13187ACDelco
1975-1978 GMC K25 ACDelco Engine Coolant Thermostat 131-87
8.05, Save 39%   NEW ITEM
OEM: 131-87, Item: 887746
  Only 2 left In Stock, Usually ships within 1 business day
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Mr. Gasket
1975-1978 GMC K25 Mr. Gasket Engine Coolant Thermostat 4363
Add for Price, Save 38%   NEW ITEM
OEM: 4363, Item: 1397837
  Only 4 left In Stock, Usually ships within 1 business day
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Mr. Gasket
1975-1978 GMC K25 Mr. Gasket Engine Coolant Thermostat 4364
Add for Price, Save 38%   NEW ITEM
OEM: 4364, Item: 1397838
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

GMC K25 Engine Coolant Thermostat, OEM: MMTS-WRA-87L/MMTSWRA87LMishimoto
1975-1978 GMC K25 Mishimoto Engine Coolant Thermostat MMTS-WRA-87L
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-WRA-87L, Item: 1335663
  Only 3 left In Stock, Usually ships within 1-2 business days
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GMC K25 Engine Coolant Thermostat, OEM: MMTS-MUS-86/MMTSMUS86Mishimoto
Mishimoto Engine Coolant Thermostat MMTS-MUS-86
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-MUS-86, Item: 1335775
  Only 2 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle


Mishimoto
1975-1978 GMC K25 Mishimoto Engine Coolant Thermostat MMTS-MUS-86A
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-MUS-86A, Item: 1359008
  Only 1 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1978 GMC K25 Motorad Engine Coolant Thermostat 200-205
2.65, Save 40%   NO STOCK
OEM: 200-205, Item: 1415829
  Restock date not known
Select year, make, model above to verify this part fits your vehicle