Dayco Thermostat DT56D Microshield It features the latest additive

It features the latest additive technology with an advanced anti wear additive package and a low shear rate viscosity modifier

oil oxidation and sludge under all operating conditions

Maximum durability

Primary Thermostat for DT274EL

It cleans and assists in regeneration of diesel particulate filters (DPFs)

Dayco Thermostat DT56D Microshield It features the latest additiveDayco 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