Beck/Arnley 158-0421 Coolant Temperature Sensor

The Beck/Arnley 158-0421 Coolant Temperature Sensor is a direct-fit replacement component designed to monitor engine coolant temperature and transmit accurate readings to your vehicle's engine control module (ECM). This sensor plays a critical role in engine management, affecting fuel mixture, ignition timing, and emission controls.

Key Features:

• Meets foreign nameplate OE specifications for form, fit, and function
• Direct replacement for worn or failed factory temperature sensors
• Precision-engineered to provide accurate temperature readings for optimal engine performance
• Manufactured to strict quality standards for reliable operation
• Backed by Beck/Arnley's global sourcing network and quality assurance

A faulty coolant temperature sensor can lead to poor fuel economy, rough idle, difficulty starting, or illuminated check engine lights. This replacement sensor restores proper engine monitoring and helps maintain optimal operating conditions across all temperature ranges.