349-0721 Water Temperature Sensor for Perkins 403C-15 404C-22 404C-22T

Product Overview

This Water Temperature Sensor monitors engine coolant temperature and sends data to the ECU for optimal fuel mixture and cooling fan control. Designed for Perkins industrial engines, it ensures accurate temperature readings to prevent overheating and maintain performance. A direct replacement for part number 349-0721.

Key Features & Performance

• Precision thermistor element for accurate temperature sensing
• Corrosion-resistant brass or stainless steel housing
• Direct plug-and-play installation with standard thread sizing
• Compatible with 12V or 24V electrical systems
• Meets OEM specifications for Perkins engine series

Fitment & Compatibility

• Perkins 403C-15
• Perkins 404C-22
• Perkins 404C-22T

Common Uses

• Monitoring engine coolant temperature in agricultural tractors
• Temperature feedback for generator set control panels
• Replacing failed sensors on industrial forklifts and construction equipment
• Overheat prevention in marine engine applications (if applicable)

Technical Specifications

• Part Number(s): 349-0721
• Sensor Type: Negative Temperature Coefficient (NTC) thermistor
• Thread Size: 1/2" NPT (typical, verify fitment)
• Connector Type: Two-pin blade connector

Frequently Asked Questions

Q: Is this sensor a direct replacement for the OEM part? A: Yes, it matches OEM part number 349-0721 and is designed to directly replace the original sensor on compatible Perkins engines.

Q: What happens if the coolant temperature sensor fails? A: A faulty sensor can cause incorrect fuel delivery, poor engine performance, or overheating. Replacing it restores proper temperature monitoring and engine management.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.