Drive Belts & Kits
Drive Belt Automatic Tensioners
Drive Belt Idler & Tensioner Pulleys
Fan Clutches
Harmonic Balancers OEM Replacement
Harmonic Balancers Performance & Kits
Harmonic Balancers Engine Specific
Heater Tap Control Valves
Hose Air
Hose Air Intake
Hose Fuel
Hose Heater/Blanking Caps
Hose Radiator
Hose Service
Hose Turbo
Hose Clamps
Overrunning Alternator Pulleys
Radiator Caps Automotive
Radiator Coolant Tanks
Thermostats, Gaskets & Outlets
Timing Belt & Kits
Timing Chain Kits
Timing Belt - Hydraulic Automatic Tensioners (HAT)
Water Pumps

Thermostats Heavy Duty

Dayco offers competitively priced, innovative and well-designed thermostats to fit the needs of today's Heavy Duty diesel engines.

Click on a column heading to sort the items in the list

Part numberTemperatureFlange to baseFlange diameterHeightVent valve
DT208A82°C82mm97mm 46mm
DT217M80°C43mm92mm 55mm
DT218C71°C26mm67mm 43mm
DT219A82°C0mm0mm 0mm
DT227A82°C32mm68mm 43mm
DT228A82°C0mm81mm 0mm
DT229C71°C0mm81mm 0mm
DT230D88°C0mm81mm 0mm
DT231A82°C 73mm  
DT232C71°C0mm72.5mm .mm
DT233E77°C0mm72.8mm 0mm
DT234D88°C0mm72.8mm 0mm
DT235A82°C34mm43.4mm 28.8mm
DT236A82°C0mm72.8mm 41mm
DT237D88°C0mm73.6mm 0mm
DT242A82°C0mm110mm 0mm
DT252A82°C43mm82mm 27.2mm
DT253H85°C25.5mm53.8mm 0mm
DT254A82°C32.3mm53.8mm 28.29mm
DT271A82°C33.8mm53.8mm 28mm
DT272A82°C32mm53.8mm 28mm