Volvo DEF Level Sensor

Volvo - 22406340 Diesel Exhaust Fluid (DEF) level and temperature sensor
Function: Continuously measures DEF volume and temperature within the vehicle's DEF tank. Tank Capacity: Designed primarily for 70-liter DEF systems.
Interchangeable OEM #'s: 21648844, 21648846.
Vehicle Compatibility: Primarily utilized in Volvo and Mack heavy-duty trucks, as well as Volvo Penta marine applications.