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Mercury Monarch Thermostats

Your Monarch is a prized possession.

Select Your VehicleIt's not a regular occurrence that you discover you need a replacement Thermostats to repair your vehicle. Obviously, you didn't buy your Monarch unless you knew that you wanted strength and a dash of luxury both rolled up into one automobile. Mercury vehicle enthusiasts have grown accustomed to a certain level of reliability when driving their Monarch around town. When your Mercury Monarch rolled off the assembly line, it was destined for a person with discerning taste who wants a trusted name in their automobile.

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

Your car or truck has a liquid-cooled engine, 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 ideal temperature, your Mercury Monarch thermostat responds by directing coolant to the radiator. Now your coolant is part of a constant cycle in your Mercury Monarch engine that keeps it at a steady and controlled temperature ideal for engine performance... all thanks to the thermostat.

We carry thousands of items to choose from.

Bring your Monarch back to life with the highest quality repair parts from the experts at Car Parts Discount. At Car Parts Discount, we have real customer support agents available with enough expertise to help you purchase the appropriate Mercury Monarch part for your needs. Make all your future car parts purchases at carpartsdiscount.com and realize incredible savings on all your upcoming repairs. All the Mercury Monarch Thermostats parts on this page will fit vehicles made in 1980, 1979, 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
Mercury Monarch Engine Coolant Thermostat, OEM: 300-160/300160Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 300-160
1.35, Save 41%  
OEM: 300-160, Item: 1405010
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 300-180/300180Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 300-180
1.35, Save 41%  
OEM: 300-180, Item: 1405011
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 300-195/300195Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 300-195
1.35, Save 41%  
OEM: 300-195, Item: 1405012
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 13006Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 13006
1.85, Save 40%   NEW ITEM
OEM: 13006, Item: 642449
  In Stock, Usually ships within 1 business day
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Mercury Monarch Engine Coolant Thermostat, OEM: 13008Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 13008
1.85, Save 40%   NEW ITEM
OEM: 13008, Item: 642450
  In Stock, Usually ships within 1 business day
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Mercury Monarch Engine Coolant Thermostat, OEM: 13009Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 13009
1.85, Save 40%   NEW ITEM
OEM: 13009, Item: 642451
  In Stock, Usually ships within 1 business day
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Mercury Monarch Engine Coolant Thermostat, OEM: 12TE1BACDelco
1975-1980 Mercury Monarch ACDelco Engine Coolant Thermostat 12TE1B
2.15, Save 40%   NEW ITEM
OEM: 12TE1B, Item: 885094
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 12TE1DACDelco
1975-1980 Mercury Monarch ACDelco Engine Coolant Thermostat 12TE1D
2.15, Save 40%   NEW ITEM
OEM: 12TE1D, Item: 885095
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 12TE1EACDelco
1975-1980 Mercury Monarch ACDelco Engine Coolant Thermostat 12TE1E
2.15, Save 40%   NEW ITEM
OEM: 12TE1E, Item: 890423
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 200-160/200160Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 200-160
2.25, Save 42%   POPULAR
OEM: 200-160, Item: 1404893
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 200-195/200195Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 200-195
2.35, Save 39%   NEW ITEM
OEM: 200-195, Item: 1404895
  Only 8 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 200-180/200180Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 200-180
2.45, Save 40%   NEW ITEM
OEM: 200-180, Item: 1404894
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33508Gates
1975-1979 Mercury Monarch Gates Engine Coolant Thermostat 33508
2.85, Save 39%  
OEM: 33508, Item: 667740
  In Stock, Usually ships within 1 business day
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Mercury Monarch Engine Coolant Thermostat, OEM: 33509Gates
1975-1979 Mercury Monarch Gates Engine Coolant Thermostat 33509
2.85, Save 39%   NEW ITEM
OEM: 33509, Item: 675470
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33010Gates
1975-1980 Mercury Monarch Gates Engine Coolant Thermostat 33010
3.25, Save 40%   NEW ITEM
OEM: 33010, Item: 669900
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 13359Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 13359
3.35, Save 40%   NEW ITEM
OEM: 13359, Item: 383502
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 13352Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 13352
3.35, Save 41%   NEW ITEM
OEM: 13352, Item: 642456
  Only 7 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33006Gates
1975-1980 Mercury Monarch Gates Engine Coolant Thermostat 33006
3.45, Save 40%   NEW ITEM
OEM: 33006, Item: 621043
  Only 4 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33008Gates
1975-1980 Mercury Monarch Gates Engine Coolant Thermostat 33008
3.45, Save 40%  
OEM: 33008, Item: 667724
  Only 5 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33009Gates
1975-1980 Mercury Monarch Gates Engine Coolant Thermostat 33009
3.45, Save 40%   NEW ITEM
OEM: 33009, Item: 669899
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 13356Stant
1975-1980 Mercury Monarch 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

Mercury Monarch Engine Coolant Thermostat, OEM: 13358Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 13358
3.55, Save 39%   POPULAR
OEM: 13358, Item: 383501
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 12T1DACDelco
1975-1980 Mercury Monarch ACDelco Engine Coolant Thermostat 12T1D
3.55, Save 39%   NEW ITEM
OEM: 12T1D, Item: 885136
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 12T1FACDelco
1975-1980 Mercury Monarch 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

Mercury Monarch Engine Coolant Thermostat, OEM: 12T1BACDelco
1975-1980 Mercury Monarch 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

Mercury Monarch Engine Coolant Thermostat, OEM: 12T1EACDelco
1975-1980 Mercury Monarch 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

Mercury Monarch Engine Coolant Thermostat, OEM: 2000-160/2000160Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 2000-160
3.95, Save 40%   NEW ITEM
OEM: 2000-160, Item: 1404889
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 2000-180/2000180Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 2000-180
3.95, Save 40%   NEW ITEM
OEM: 2000-180, Item: 1404890
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 2000-195/2000195Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 2000-195
3.95, Save 40%   NEW ITEM
OEM: 2000-195, Item: 1404891
  Only 7 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 45356Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 45356
4.45, Save 39%   NEW ITEM
OEM: 45356, Item: 642632
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 45358Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 45358
4.45, Save 39%  
OEM: 45358, Item: 642633
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 45359Stant
1975-1980 Mercury Monarch Stant Engine Coolant Thermostat 45359
4.45, Save 39%   NEW ITEM
OEM: 45359, Item: 642634
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33006SGates
1975-1980 Mercury Monarch Gates Engine Coolant Thermostat 33006S
4.55, Save 40%   NEW ITEM
OEM: 33006S, Item: 667723
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33008SGates
1975-1980 Mercury Monarch Gates Engine Coolant Thermostat 33008S
4.55, Save 40%   NEW ITEM
OEM: 33008S, Item: 667725
  Only 5 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 33009SGates
1975-1980 Mercury Monarch Gates Engine Coolant Thermostat 33009S
4.55, Save 40%   NEW ITEM
OEM: 33009S, Item: 667726
  Only 8 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 12TP1BACDelco
1975-1980 Mercury Monarch ACDelco Engine Coolant Thermostat 12TP1B
4.65, Save 40%   NEW ITEM
OEM: 12TP1B, Item: 885117
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 12TP1DACDelco
1975-1980 Mercury Monarch 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

Mercury Monarch Engine Coolant Thermostat, OEM: 12TP1EACDelco
1975-1980 Mercury Monarch 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

Mercury Monarch Engine Coolant Thermostat, OEM: 7200-160/7200160Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 7200-160
5.75, Save 40%   NEW ITEM
OEM: 7200-160, Item: 1409345
  Only 4 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 7200-180/7200180Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 7200-180
5.75, Save 40%   NEW ITEM
OEM: 7200-180, Item: 1405138
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: 7200-195/7200195Motorad
1975-1980 Mercury Monarch Motorad Engine Coolant Thermostat 7200-195
5.85, Save 39%   NEW ITEM
OEM: 7200-195, Item: 1409346
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Motorcraft
1979-1980 Mercury Monarch Motorcraft Engine Coolant Thermostat RT1152
10.55, Save 40%   NEW ITEM
OEM: RT1152, Item: 404891
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Motorcraft
1975-1978 Mercury Monarch Motorcraft Engine Coolant Thermostat RT350
11.45, Save 39%   NEW ITEM
OEM: RT350, Item: 404906
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Motorcraft
1975-1978 Mercury Monarch Motorcraft Engine Coolant Thermostat RT351
13.45, Save 39%   NEW ITEM
OEM: RT351, Item: 1039697
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mr. Gasket
1975-1980 Mercury Monarch 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
Select year, make, model above to verify this part fits your vehicle

Mr. Gasket
1975-1980 Mercury Monarch Mr. Gasket Engine Coolant Thermostat 4364
Add for Price, Save 38%   NEW ITEM
OEM: 4364, Item: 1397838
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Motorcraft
1975-1978, 1980 Mercury Monarch Motorcraft Engine Coolant Thermostat RT1167
22.55, Save 39%   NEW ITEM
OEM: RT1167, Item: 1039719
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: MMTS-WRA-87L/MMTSWRA87LMishimoto
1975, 1977, 1979-1980 Mercury Monarch Mishimoto Engine Coolant Thermostat MMTS-WRA-87L
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-WRA-87L, Item: 1335663
  Only 8 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Mercury Monarch Engine Coolant Thermostat, OEM: MMTS-MUS-86/MMTSMUS86Mishimoto
1975, 1977, 1979-1980 Mercury Monarch Mishimoto Engine Coolant Thermostat MMTS-MUS-86
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-MUS-86, Item: 1335775
  Only 1 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Mishimoto
1975, 1977, 1979-1980 Mercury Monarch Mishimoto Engine Coolant Thermostat MMTS-MUS-86A
Add for Price, Save 36%   NEW ITEM
OEM: MMTS-MUS-86A, Item: 1359008
  Only 2 left In Stock, Usually ships within 1-2 business days
Select year, make, model above to verify this part fits your vehicle

Motorad
1975-1980 Mercury Monarch 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