Engine System
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Volvo Truck Electrical Ssytem Oil Pressure Sensor 20796744 21634017 21746206
The Sensor is operated by a self-elastic diaphragm or movable diaphragm with fitted hairspring, whose position is determined by the pressure applied to it.
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Volvo Truck Cooling System Water Pump with electromagnetic clutch 20920065 21648711 21814005 21814040
When the water hits the rotating impeller, energy of the impeller is transferred to the water, forcing the water out (centrifugal force).
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Benz Truck Engine System Timing Belt Tensioner 4722000870 4722000570 4722000970 4722001070 4722001470
The base holds the other parts, and the spring keeps the belt pulled tight. The pulley is what facilitates movement of the belt.
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BENZ Truck Oil Dipstick Oil Level Sensor 0004660718 0004660967 0004661367
Oil level sensors use magnetic reed switches, that are hermitically sealed in a stainless steel or plastic stem, to measure oil levels and automatically turn on or off oil pumps.