Description
Product Overview
Part Name: Nitrogen NOx Oxygen Sensor
Part Numbers: 5WK96761, 4359309, SNS161A, A2C16674100-01
Vehicle Compatibility: Cummins Diesel Engines (China Models) – Designed for Tier 4-equivalent emission-compliant ISX, ISB, and QSX diesel engines used in commercial trucks, buses, and construction equipment (2014–2024)
Configuration: OEM-style NOx sensor with advanced sensing accuracy for exhaust gas monitoring. Constructed to resist high heat, vibration, and corrosion in harsh engine environments, providing long-term stability.
Function: Measures nitrogen oxide concentration in exhaust gases and transmits readings to the ECU to optimize DEF dosing. Ensures SCR efficiency, fuel economy, and compliance with Chinese National VI and Tier 4-equivalent emission standards.
Technical Specifications
Type: Nitrogen Oxide (NOx) Oxygen Sensor
Material: High-grade stainless steel probe with ceramic sensing element and heat-shielded wiring harness
Application: Fits Cummins Tier 4-equivalent diesel engines (2014–2024) using NOx sensor references 5WK96761 / 4359309 / SNS161A / A2C16674100-01
Cross-Reference: Equivalent to Cummins OE part numbers above; compatible with OEM SCR and DEF emission systems in heavy-duty applications for the Chinese market
Installation: Direct-fit replacement; mounts into OEM exhaust port and connects seamlessly to the factory harness
Service Interval: Replace when NOx fault codes (P2201, P229F) are triggered, or when DEF efficiency or emission control performance declines
Delivery & Availability
Stock Options: Premium aftermarket Cummins NOx sensors available
Delivery Time: 3–7 days internationally
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