VDO 323-421 Temperature Switch, 250°F, 3/8 in NPT Male

The VDO 323-421 Temperature Switch is designed to monitor engine or equipment temperature and provide dependable electrical switching at a 250°F operating point. This temperature sender features a 3/8 in NPT male connection for installation in compatible threaded ports, making it a practical replacement component for automotive, marine, industrial, and specialty applications.
Built for straightforward installation, the VDO 323-421 combines a compact sender design with reliable temperature response. Its electrical switching function helps support warning systems, gauges, control circuits, and other temperature-monitoring applications that require a consistent activation point. Verify the vehicle or equipment specifications, thread compatibility, and electrical requirements before installation.
The VDO 323-421 temperature switch is supplied as an individual unit and is identified by part number 323-421. Its 250°F switching temperature makes it suitable for systems engineered around that specific threshold. Use proper sealing practices for the threaded connection and follow the equipment manufacturer’s installation procedures to help ensure dependable operation and prevent leaks.
Feature: Brand: VDO
Feature: Part number: 323-421
Feature: Product type: Electrical temperature switch
Feature: Switching temperature: 250°F
Feature: Thread size: 3/8 in NPT male
Feature: Application: Temperature monitoring and warning circuits
Feature: Package quantity: One switch

Features:

• Brand: VDO

• Part number: 323-421

• Product type: Electrical temperature switch

• Switching temperature: 250°F

• Thread size: 3/8 in NPT male

• Application: Temperature monitoring and warning circuits

• Package quantity: One switch