ISX & X15 Emissions Components

Keep your Cummins engine running at full power and emissions compliance with genuine OEM and ReCon Cummins NOx sensors.

Nitrogen Oxide (NOx) sensors play a critical role in the SCR (Selective Catalytic Reduction) system by monitoring exhaust gas levels and communicating directly with the ECM to regulate DEF dosing. When a NOx sensor fails, it can trigger fault codes, poor fuel economy, and engine torque derate conditions that lead to costly downtime.

At Pro Truck Direct, we supply high-quality Cummins NOx sensors engineered specifically for:

• Cummins ISX

• Cummins X15

• ISB and ISL applications (verify ESN)

Common symptoms of a failing NOx sensor include:

• Check engine light

• SCR efficiency fault codes

• DEF system warnings

• Engine derate

• Reduced fuel mileage

Whether you are a fleet maintenance manager, owner-operator, or diesel repair facility, our Cummins NOx sensors are built to restore proper emissions performance and keep your truck on the road.

Most of our ReCon units include a refundable core charge, clearly noted in each product listing.

Shop with confidence knowing you are getting commercial-grade emissions components backed by real heavy-duty diesel experience.