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NOTE : All of our DT79A Thermostats now include the foot valve spaced ready to fit straight into your TD42.
These thermostats are longer in the body than standard and block the bypass therefore allowing no hot water to circulate until thermostat opens, they have been proven to make a substantial difference in the TD42 engines, especially ones that have the "kettle" heating issue.
Suits all Patrol 4.2L Diesel Engines,GQ TD42, GU TD42T & GU TD42Ti
We run this thermostat ourselves and recommend them as do many other knowledgeable people in the industry specialising in TD42's.
- Flange diameter: 54mm
- Height: 62mm
- Flange to base: 40mm
- Vent valve: 29mm
- Celsius: 82°C
- Fahrenheit: 180°F
Dayco thermostats are designed to OEM specifications and come with a heat sensing wax filled copper power pill that detects the coolant temperature in the engine. The Dayco thermostat's amazing heat sensing power pill controls coolant flow from the radiator when the engine is cold to reach optimum operating temperature quickly. It then allows coolant to circulate through the engine when operating temperature is reached to create the perfect temperature controlled engine environment.
- tonne van
- pool noodles
- radiator cap
- air dam
- diesel water
Made a night & day difference, temps are much much more stable.
good product happy with it
Thanks for a great item
Cooled the kettle
Works great, tried to get the old girl hot but she didn’t wanna know about it
Unreal the difference in my td I run this thermostat with diesel water wetter, antifreeze, high flow water pump, air dam, pool noodles around radiator to stop any air missing the radiator a powercurve fan and a bigger radiator cap 2.0 instead of the .9 or 1.1 I do a lot of towing always loaded and never have a issue at all dads stretched td Ute runs the same but a bigger radiator and a quikazz fan because always towing a gooseneck or 3 tonne van never runs hot biggest change was fan and thermostat thanks 4x4and camping