Description
Product Overview
Part Name: Nitrogen NOx Oxygen Sensor
Part Numbers: 5WK96765A, 4326863, SNS165A, A2C89789800-01
Vehicle Compatibility: Cummins Diesel Engines (China Models) – Suitable for Tier 4-equivalent ISX, ISB, and QSX diesel engines used in commercial trucks, heavy-duty vehicles, and industrial machinery (2014–2024)
Configuration: OEM-style NOx sensor designed to detect nitrogen oxide levels in high-temperature exhaust environments. Built with enhanced vibration resistance and corrosion protection for consistent long-term operation.
Function: Measures NOx concentration in the exhaust flow and transmits real-time data to the ECU. Helps regulate DEF dosing through the SCR system, ensuring clean exhaust emissions and compliance with China National VI and Tier 4-equivalent standards.
Technical Specifications
Type: Nitrogen Oxide (NOx) Oxygen Sensor
Material: Stainless-steel sensor body with ceramic sensing element and insulated, heat-shielded wiring assembly
Application: Fits Cummins Tier 4-equivalent diesel engines (2014–2024) using NOx sensor references 5WK96765A / 4326863 / SNS165A / A2C89789800-01
Cross-Reference: Equivalent to Cummins OE part numbers above; compatible with OEM SCR and DEF systems across Chinese and export heavy-duty diesel platforms
Installation: Direct-fit replacement; mounts in OEM exhaust port and connects to factory harness without modification
Service Interval: Replace when NOx or SCR fault codes (P2201, P229F) appear, or when DEF dosing efficiency decreases
Delivery & Availability
Stock Options: Premium aftermarket Cummins NOx sensors in stock
Delivery Time: 3–7 days internationally
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