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2871978 Genuine Cummins NOx Nitrogen Oxide Sensor

2871978 Genuine Cummins NOx Nitrogen Oxide Sensor

P/N: 2871978 Manufactured by: Cummins
$499.00 - $499.00
$499.00
$499.00 - $499.00
$499.00
1 in Stock
Condition: New
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2-Year Warranty

At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The 2871978 is a genuine Cummins NOx nitrogen oxide sensor intended for EPA13 8.9L ISC and ISL engine applications. This component measures nitrogen oxide output from the exhaust system and delivers sensor information used to manage diesel emissions.

Product Features

The 2871978 NOx sensor is manufactured to Cummins factory specifications for emissions control applications.

  • Monitors nitrogen oxide levels produced by the engine exhaust system.
  • Provides continuous sensor input for engine emissions management functions.
  • Supports SCR, DEF, and EGR system performance during normal operation.
  • Helps maintain accurate exhaust emissions measurement for aftertreatment control.
  • Engineered for dependable operation with OEM wiring and exhaust components.
  • Contributes to efficient diesel emissions system monitoring and regulation.

Technical Specifications

Condition New
Part Number 2871978
Brand Cummins
Part Type NOx Nitrogen Oxide Sensor
Engine Applications EPA13 8.9L ISC/ISL
Weight 4.0 lbs


Installation Notes

The 2871978 should be installed after inspecting the exhaust sensor threads, electrical connector, and wiring harness for soot buildup, corrosion, or physical damage. Following installation, verify sensor communication with the engine control module and confirm proper operation of the emissions system using diagnostic equipment.

Always verify part number, engine family, emissions system configuration, sensor installation location, and connector style before installation.