Uploaded March 2017 | Updated September 2026, 1 week ago
How to Change the thermostat on a Wrangler YJ 4.2 litre engine, 258 cu inch, without removing the belts. Simple instructions for the beginner, making it possible to do it under 3 hours. DIY recommendations and warnings on what can go wrong, followed by your own gasket maker instructions. Permatex Ultra Black sealant was used to compensate for scratches in the block and the thermostat housing.
The video applies for the straight-6 used in the following vehicles:
AMC Hornet/Concord/Eagle (1971–1988)
AMC Pacer (1975–1980)
AMC Matador (1971–1978)
AMC Gremlin and Spirit (1971–1983)
International Harvester Scout and Light Line trucks (1972–1980)
Jeep CJ (1972–1986)
Jeep Cherokee and Wagoneer (1972–1986)
Jeep J-Series (1971–1988)
Jeep Wrangler (1987–1990)
Jeep Commando (1972–1973)
VAM Rambler American (1973–1974) U.S. equivalent - AMC Hornet sedans
VAM Rambler American Rally (1973–1974) U.S. equivalent - AMC Hornet X sedan instead of hatchback.
VAM Camioneta Rambler American (1973-1974) U.S. equivalent - AMC Hornet Sportabout
VAM American (1975–1983) U.S. equivalent - AMC Hornet sedan base model and AMC Concord sedan base model.
VAM American Rally (1975) U.S. equivalent - AMC Hornet X sedan instead of hatchback.
VAM Camioneta American (1975-1983) U.S. equivalent - AMC Hornet Sportabout and Concord base model wagon.
VAM American ECD (1975–1979) U.S. equivalent - AMC Hornet DL two and four door sedans and AMC Concord DL/Limited four door sedan.
VAM Gremlin X (1976–1982) U.S. equivalent - AMC Gremlin X and AMC Spirit sedan X model equivalent.
VAM Gremlin (1977–1983) U.S. equivalent - AMC Gremlin and AMC Spirit sedan base model.
Stant thermostat part number: 13009, 190 Fahrenheit (91 °C) - OEM
#KenSweden
#JeepWranglerYJ
#CarMechanics
#Thermostat
#JEEP
How to Change the thermostat on a Wrangler YJ 4.2 litre engine, 258 cu inch, without removing the belts. Simple instructions for the beginner, making it possible to do it under 3 hours. DIY recommendations and warnings on what can go wrong, followed by your own gasket maker instructions. Permatex Ultra Black sealant was used to compensate for scratches in the block and the thermostat housing.
The video applies for the straight-6 used in the following vehicles:
AMC Hornet/Concord/Eagle (1971–1988)
AMC Pacer (1975–1980)
AMC Matador (1971–1978)
AMC Gremlin and Spirit (1971–1983)
International Harvester Scout and Light Line trucks (1972–1980)
Jeep CJ (1972–1986)
Jeep Cherokee and Wagoneer (1972–1986)
Jeep J-Series (1971–1988)
Jeep Wrangler (1987–1990)
Jeep Commando (1972–1973)
VAM Rambler American (1973–1974) U.S. equivalent - AMC Hornet sedans
VAM Rambler American Rally (1973–1974) U.S. equivalent - AMC Hornet X sedan instead of hatchback.
VAM Camioneta Rambler American (1973-1974) U.S. equivalent - AMC Hornet Sportabout
VAM American (1975–1983) U.S. equivalent - AMC Hornet sedan base model and AMC Concord sedan base model.
VAM American Rally (1975) U.S. equivalent - AMC Hornet X sedan instead of hatchback.
VAM Camioneta American (1975-1983) U.S. equivalent - AMC Hornet Sportabout and Concord base model wagon.
VAM American ECD (1975–1979) U.S. equivalent - AMC Hornet DL two and four door sedans and AMC Concord DL/Limited four door sedan.
VAM Gremlin X (1976–1982) U.S. equivalent - AMC Gremlin X and AMC Spirit sedan X model equivalent.
VAM Gremlin (1977–1983) U.S. equivalent - AMC Gremlin and AMC Spirit sedan base model.
Stant thermostat part number: 13009, 190 Fahrenheit (91 °C) - OEM
#KenSweden
#JeepWranglerYJ
#CarMechanics
#Thermostat
#JEEP
