4019855 Cummins Heat Exchanger. Replaces Cummins 3866719.

4019855 Cummins Heat Exchanger, with cupro-nickel (CuNi) core. Replaces Cummins 3866719CN.

4019958 Cummins heat exchanger 4 x 26. Replaces Cummins 3897168.

4019958 Cummins heat exchanger 4 x 26, with cupro-nickel (CuNi) core. Replaces Cummins 3897168CN.

4020101 Cummins Heat Exchanger 4 X 25 3/4" copper core.

4020101 Cummins Heat Exchanger 4 X 25 ¾" with standard copper nickel (CUNI) core.

40164 Westerbeke Heat Exchanger, for the Westerbeke W55A Heat Exchanger-HBW Transmission Cooler: Westerbeke 90A Four / 32.0 BEDA-60 Hz / 25.0 BEDA-50Hz Cooling system in rear.

40164CN Westerbeke Heat Exchanger for the Westerbeke W55A Heat Exchanger-HBW Transmission Cooler: Westerbeke 90A Four / 32.0 BEDA-60 Hz / 25.0 BEDA-50Hz. Copper Nickel core. Cooling system in rear.

Coolant Temp Sensor
Replaces: Mercruiser 805218T / Volvo 3850397
Fits: Used with Temp Gauge MCM/MIE EFI Models
  
The coolant temperature sensor is used to measure the temperature of the engine coolant of an internal combustion engine. The readings from this sensor are then fed back to the Engine control unit (ECU). This data from the sensor is then used to adjust the fuel injection and ignition timing.

Coolant Temp Sensor
Replaces: OMC / Volvo 3854159
Fits: Ford 5.0L & 5.8L 1993

The coolant temperature sensor is used to measure the temperature of the engine coolant of an internal combustion engine. The readings from this sensor are then fed back to the Engine control unit (ECU). This data from the sensor is then used to adjust the fuel injection and ignition timing.

AIR Charge Temp Sensor
Replaces: OMC / Volvo 3854158
Fits: Ford 5.0L & 5.8L 1993

The Air Charge Temperature Sensor (ACTS) a thermistor sensor that inputs the temperature of the incoming air stream in the air filter or intake manifold to the computer. It can be located in the intake manifold (EFI systems) or the air cleaner.