Cummins Paccar Outlet NOx Sensor - Skyline SNX005 OE - 4326872

• OE Manufactured Quality: Built by Skyline to strict Original Equipment specifications, ensuring the exact factory calibration, rapid heating element response time, and durability your ECU demands.
• Prevents Costly Derates: Accurately measures downstream nitrogen oxide levels to confirm SCR efficiency, preventing false readings that trigger dreaded DEF faults and 5-mph Limp Mode derates.
• Extreme Heat Resistance: Features an advanced ceramic sensing element and robust heat shielding designed to survive brutal exhaust gas temperatures and abrasive diesel soot buildup.
• Direct Plug-and-Play Fit: Arrives fully pre-wired with the correct factory connector to seamlessly replace Cummins 4326872 and Paccar 1954664 without complex splicing or harness modifications.
• Industry-Leading Warranty: Backed by Skyline's robust 1-year / unlimited mileage warranty, giving you and your fleet total peace of mind for the long haul.

Clear persistent aftertreatment dashboard codes and restore your engine's power with this premium Cummins Paccar Outlet NOx Sensor by FleetPro Parts & Tires. Manufactured by Skyline to strict Original Equipment (OE) standards, this downstream Nitrogen Oxide sensor continuously monitors the efficiency of your SCR system. A fouled or failing outlet NOx sensor will trigger the check engine light, cause poor fuel economy, and eventually force your truck into a severe 5-mph Limp Mode. We stock these heavily right here in our Hanover Park, Illinois warehouse to ensure lightning-fast shipping for fleets, diesel shops, and owner-operators nationwide.

Prevent Limp Mode: The Cummins Paccar Outlet NOx Sensor Advantage

This Cummins Paccar Outlet NOx Sensor is engineered to deliver highly accurate, real-time emissions data directly to your engine control unit (ECU). Mounted downstream (at the outlet) of the SCR catalyst, it verifies that the DEF injection is properly neutralizing harmful nitrogen oxide gases. Built to withstand the brutal exhaust temperatures, soot buildup, and intense vibration found in heavy-duty commercial exhaust systems, this Skyline sensor guarantees OE-level response times and durability.

As we continue to build the largest inventory of commercial truck parts in Illinois, we prioritize aftertreatment electronics that eliminate diagnostic headaches and rework. Serving as a direct exact-fit replacement for heavily searched Cummins and Paccar OEM numbers like 4326872, 2872942, and 1954664, this sensor plugs directly into your factory wiring harness without splicing. Upgrade your emissions system today with a reliable, guaranteed-to-fit sensor backed by an unlimited mileage warranty.

Vehicle Fitment & Compatibility

This OE-quality Skyline nitrogen oxide sensor is precision-engineered for the following heavy-duty exhaust applications:

• Engine Make: Cummins & Paccar
• Exhaust Position: Outlet / Downstream (Post-SCR Catalyst)
• Component Function: Nitrogen Oxide (NOx) Emissions Monitoring

Direct Replacement & Cross-Reference Numbers:

This downstream NOx sensor serves as a direct exact-fit replacement for the following OEM part numbers:

• Skyline: SNX005
• Cummins OEM: 4326872, 4326872NX, 4326872RX, 2872942, 2872942NX, 2872942RX, A045S169
• Paccar / Peterbilt / Kenworth: 1954664, 1954664PE, 1954664PRX
• Navistar / International: 2520640C1, CMI2520640C1

Technical Specifications

• Sensor Type: Nitrogen Oxide (NOx) Sensor
• Mounting Location: Outlet (Downstream)
• Product Level: OE Manufactured
• Warranty: 1 Year / Unlimited Miles
• Brand: Skyline (Distributed by FleetPro Parts & Tires)