Description
Product Overview
Part Name: Nitrogen NOx Oxygen Sensor
Part Numbers: 5WK96765B, 4326863, 4326471, SNS165B, A2C95995100-01
Vehicle Compatibility: Cummins Diesel Engines (US Models) – Designed for EPA Tier 4 emission-compliant Cummins ISX, ISB, and QSX engine platforms used in trucks, buses, and construction machinery (2014–2024)
Configuration: OEM-style NOx sensor engineered to accurately measure nitrogen oxide concentrations in diesel exhaust gases. Built for high-temperature endurance, vibration resistance, and long operational life under heavy-duty applications.
Function: Continuously monitors NOx levels in the exhaust system and provides real-time feedback to the ECU for efficient DEF (Diesel Exhaust Fluid) dosing, ensuring compliance with U.S. EPA emission standards and improving fuel economy.
Technical Specifications
Type: Nitrogen Oxide (NOx) Oxygen Sensor
Material: Corrosion-resistant stainless steel housing with a ceramic sensing element and heat-shielded wiring harness
Application: Fits Cummins Tier 4 diesel engines (2014–2024) using NOx sensor references 5WK96765B / 4326863 / 4326471 / SNS165B / A2C95995100-01
Cross-Reference: Equivalent to Cummins OE part numbers above; compatible with OEM SCR and DEF emission control systems across U.S. market heavy-duty vehicles
Installation: Direct-fit replacement; installs in factory exhaust location and connects to OEM wiring harness without modification
Service Interval: Replace when NOx fault codes (P2201, P229F) appear, or when SCR system efficiency and emission performance decline
Delivery & Availability
Stock Options: High-quality aftermarket Cummins NOx sensors available
Delivery Time: 3–7 days internationally
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