Description
Product Overview
Part Name: Nitrogen NOx Oxygen Sensor
Part Numbers: 5WK96672A, 2894943, 2894943RX, A034X849
Vehicle Compatibility: Cummins Engines (US Models) – Designed for EPA Tier 4 diesel engines used in heavy-duty trucks, construction machinery, and buses powered by ISX, ISB, and QSB engines (2013–2023)
Configuration: OEM-style NOx sensor designed to monitor and analyze nitrogen oxide levels in exhaust gases. Ensures accurate SCR (Selective Catalytic Reduction) system performance for DEF (Diesel Exhaust Fluid) control and EPA emission compliance.
Function: Measures NOx concentrations in exhaust flow and transmits data to the ECU to optimize fuel injection and DEF dosing, improving engine efficiency and reducing harmful emissions.
Technical Specifications
Type: Nitrogen Oxide (NOx) Oxygen Sensor
Material: Stainless steel housing with heat-resistant ceramic sensing core and insulated wiring harness
Application: Fits Cummins Tier 4 diesel engines (2013–2023) using NOx sensor references 5WK96672A / 2894943 / 2894943RX / A034X849
Cross-Reference: Equivalent to Cummins OE part numbers above; compatible with OEM SCR and DEF after-treatment systems
Installation: Direct-fit replacement; installs in OEM exhaust location and connects to original harness without modification
Service Interval: Replace when emissions system fault codes appear, check engine light activates, or SCR performance decreases
Delivery & Availability
Stock Options: High-quality aftermarket Cummins NOx sensors available
Delivery Time: 3–7 days internationally
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