Features 1、Coolant Level Sensor: This level sensor can quickly detect the coolant inside the expansion tank, practical and reliable. 2、The OEM Number: The OEM number is 21399626 8140024, suits perfectly for 290‑360, and works stably under 24V power. 3、Reliable Using: Very sturdy with corrosion and anti interference as well, has high accuracy and good sensitivity. 4、Great Material: High quality materials give the sensor excellent durability for long use, not easy to malfunction. 5、Easy to Install: Comes with a compact size and a light weight, the simple installation can be finished in minutes. Specification Item Type: Coolant Level Sensor Model: TOSD-04-144 OEM: 21399626 8140024 Application: For 290-360. Package List 1 x Coolant Level Sensor