Walker 273-10447 Exhaust Gas Temperature (EGT) Sensor

Walker OE Base EGT Sensor for Diesel Exhaust Monitoring

Walker OE Base Sensor 273-10447 is an exhaust gas temperature (EGT) sensor built for accurate exhaust temperature monitoring in diesel applications. It provides the ECM with the temperature data needed to manage aftertreatment operation, including DPF regeneration and protection of downstream emissions components.

Compatible With 2019-2021 Chevrolet Colorado and 2019-2021 GMC Canyon, this OE-style sensor is built around a gray female connector, oblong housing, 2-wire layout, and 2-terminal spade connection for direct replacement service.

OE Base Sensor Line Details

Walker’s OE Base Sensor line focuses on replacement sensors that match original equipment specifications for resistance, response time, and signal stability. For vehicles that rely on precise exhaust temperature readings, that means consistent feedback to the ECM during regeneration events and normal emissions-system operation.

Key Features

• Part number 273-10447 exhaust gas temperature sensor
• Fits 2019-2021 Chevrolet Colorado, location after diesel particulate filter
• Fits 2019-2021 GMC Canyon, location after diesel particulate filter
• Gray connector color with oblong connector shape
• 2-wire sensor with 2 terminals
• Female connector gender with male spade terminals
• Built with high-temperature and corrosion-resistant materials
• Designed for accurate exhaust temperature monitoring in diesel exhaust systems

How This Sensor Works

This EGT sensor measures exhaust temperature and sends that information to the engine control module so the system can manage regeneration and emissions control functions. In diesel applications, that data helps regulate DPF regeneration and protect turbocharger and SCR components from excessive heat. Walker 273-10447 is engineered to maintain stable signal output in harsh exhaust conditions.

Common Issues It May Address

• Fault codes related to exhaust gas temperature sensor performance
• Incorrect DPF regeneration timing
• Emissions system warnings tied to exhaust temperature readings
• Heat-related stress on aftertreatment components
• Unstable or inaccurate ECM temperature input

Installation Notes and Tips

Verify the connector style, terminal layout, and sensor location before installation. This part is listed for the after-DPF position on 2019-2021 Chevrolet Colorado and 2019-2021 GMC Canyon applications. Inspect the harness and connector for heat damage or corrosion before connecting the new sensor, and confirm the exhaust system is cool before service.

Quality Assurance

Walker builds this OE Base Sensor to meet or exceed original equipment specifications for resistance, response time, and long-term signal stability. The sensor uses materials selected for high exhaust temperatures and corrosion resistance to support dependable emissions-system operation.