Description
Product Overview
Part Name: Nitrogen NOx Oxygen Sensor
Part Numbers: 5WK96684A, 68067521AA
Vehicle Compatibility: Cummins Diesel Engines (US Models) – Suitable for EPA Tier 4 emission-compliant ISX, ISB, and QSX engines used in trucks, buses, and off-road machinery (2014–2024)
Configuration: OEM-style NOx sensor designed to operate under extreme exhaust temperatures. Features reinforced sealing and vibration-resistant materials to ensure long service life and precise data feedback.
Function: Continuously monitors nitrogen oxide concentration in exhaust gases, transmitting data to the ECU for optimal DEF dosing and efficient SCR system regulation. This helps reduce emissions while maintaining engine performance and fuel economy.
Technical Specifications
Type: Nitrogen Oxide (NOx) Oxygen Sensor
Material: Stainless-steel body with ceramic sensing core and heat-protected cable assembly
Application: Fits Cummins Tier 4 diesel engines (2014–2024) using NOx sensor references 5WK96684A / 68067521AA
Cross-Reference: Equivalent to Cummins OE part numbers above; fully compatible with OEM SCR and DEF emission control systems used in heavy-duty U.S. diesel applications
Installation: Direct-fit replacement; installs easily into the OEM exhaust port with plug-and-play connector for factory harness
Service Interval: Replace when NOx fault codes (P2201, P229F) occur or when emission system efficiency drops
Delivery & Availability
Stock Options: Premium aftermarket Cummins NOx sensors in stock
Delivery Time: 3–7 days internationally
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