HomeEmission Control > SensorsWalker 273-10408 Exhaust Gas Temperature (EGT) Sensor
Part #: 273-10408

Walker 273-10408 Exhaust Gas Temperature (EGT) Sensor

Walker Products
28 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products
Fitment: Chevrolet and GMC, Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD
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Overview of Walker Exhaust Gas Temperature Sensor 273-10408

The Walker Products Exhaust Gas Temperature (EGT) Sensor 273-10408 is designed for precise temperature monitoring in the exhaust system of select Chevrolet and GMC heavy-duty trucks. This sensor helps maintain optimal engine performance and emission control by accurately measuring exhaust gas temperatures.

  • Wiring harness length: 345.0 mm for flexible installation
  • Gray oval connector with female gender for secure connection
  • Blade-type terminals with 2 male terminals for reliable electrical contact
  • Thread diameter of 14.0 mm for proper mounting in exhaust locations
  • Compatible with Chevrolet and GMC Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD models

Detailed Product Description

This Walker Products Exhaust Gas Temperature Sensor (part number 273-10408) is engineered to monitor exhaust gas temperatures accurately in heavy-duty Chevrolet and GMC trucks. The sensor features a 345 mm wiring harness length, allowing for convenient routing and installation within the exhaust system. Its gray oval-shaped connector is female with two blade-type male terminals, ensuring a secure and stable electrical connection. The sensor mounts directly to the exhaust with a 14.0 mm thread diameter, providing a precise fit and reliable operation under high-temperature conditions.

Walker Products is known for its focus on emission control components, and this EGT sensor is part of their specialized product line designed to meet OEM specifications for heavy-duty trucks. The sensor's design supports emission compliance and engine protection by providing accurate temperature data to the vehicle’s engine control unit (ECU).

Applications and Common Issues Addressed

  • Helps prevent engine overheating by monitoring exhaust gas temperatures
  • Supports emission control systems to reduce harmful exhaust emissions
  • Detects exhaust system malfunctions such as clogged diesel particulate filters
  • Assists in maintaining fuel efficiency by providing accurate temperature feedback
  • Prevents potential damage to turbochargers and exhaust components

Installation Notes and Tips

  • Ensure the sensor is installed at the designated exhaust mount location for accurate readings
  • Verify the 14.0 mm thread diameter matches the mounting port
  • Route the 345 mm wiring harness carefully to avoid heat sources and moving parts
  • Confirm the gray oval female connector mates securely with the vehicle’s wiring harness
  • Use appropriate tools to avoid damaging blade terminals during installation

Quality Assurance and Warranty

Walker Products maintains strict quality control standards for their emission control sensors, including the 273-10408 EGT sensor. Each unit undergoes rigorous testing to ensure durability and accurate performance under demanding conditions. While specific warranty details are not provided here, Walker Products typically offers coverage consistent with OEM replacement parts standards.

BrandWalker
Part Number273-10408
PositionWalker Products
Connector ColorGray
Connector GenderFemale
Connector ShapeOval
Mount LocationExhaust
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade
Thread Diameter14.0
Wire Quantity2
Wiring Harness Length345.0

This part fits 28 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2021ChevroletSilverado 2500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2021ChevroletSilverado 3500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2021GMCSierra 2500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2021GMCSierra 3500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2020ChevroletSilverado 2500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2020ChevroletSilverado 3500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2020GMCSierra 2500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2020GMCSierra 3500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2019ChevroletSilverado 2500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2019ChevroletSilverado 3500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2019GMCSierra 2500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2019GMCSierra 3500 HD6.6LV8N/AAt Turbocharger Outlet; OE Base Sensor
2018ChevroletSilverado 2500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products
2018ChevroletSilverado 2500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2018ChevroletSilverado 3500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products
2018ChevroletSilverado 3500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2018GMCSierra 2500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2018GMCSierra 2500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products
2018GMCSierra 3500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products
2018GMCSierra 3500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2017ChevroletSilverado 2500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2017ChevroletSilverado 2500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products
2017ChevroletSilverado 3500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products
2017ChevroletSilverado 3500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2017GMCSierra 2500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2017GMCSierra 2500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products
2017GMCSierra 3500 HD6.6LV8DIESELN/AT3 - Before Turbocharger; Walker Products
2017GMCSierra 3500 HD6.6LV8DIESELN/AT6 - DPF; Walker Products

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1267266612683487ETS10408

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.