Dayco Timing Belt Kit & HAT & Water Pump KTBA168HP Marine The thermo fan switch responds

The thermo fan switch responds to changes in engine coolant temperature

Temperature: 95°C

Pro Gear GL-5 75W-85 is a premium full synthetic

SAE 30 or 20W-50 were originally recommended by the manufacturer

Includes both sensors

Dayco Timing Belt Kit & HAT & Water Pump KTBA168HP Marine The thermo fan switch respondsFor the complete solution, turn to Dayco timing belt kits that also include the Dayco hydraulic tensioner for its specified application and also include a replacement water pump. >Water pumps are a critical part of the vehicle's cooling system. Replacement is usually time consuming and expensive work, sometimes as much as 90% of the cost to change the timing belt kit. New drive components can add extra tension to already worn water pump bearings,