3687387 | Cummins® Nitrogen Oxide Sensor

Cross Number:

3687387RX, 2894942, 5WK96676A

Engine Compatibility: 

Cummins ISX15 CM2250 / CM2350

Cummins QSX11.9 / QSX15 CM2250 / CM2350

Cummins X12 CM2350 X119B

Cummins X15 CM2350 X114B / X116B / X125M / X130 / X131

Why Replacement is Important:

A properly functioning NOx sensor is essential for accurate emission monitoring and SCR system performance. A faulty sensor can cause incorrect NOx data, leading to improper urea dosing in the SCR system, elevated emissions, diagnostic fault codes, reduced engine power, and potential aftertreatment damage. Timely replacement ensures the SCR system operates correctly, maintains fuel efficiency, avoids costly downtime, and keeps the engine compliant with environmental standards. Regular sensor inspection and replacement help sustain heavy‑duty diesel engine performance and long‑term emissions system reliability.

Manufacturer Information:

Cummins is a global leader in diesel and natural gas engines, renowned for delivering durable, high‑performance power solutions used in commercial, industrial, and heavy‑duty applications, with a strong emphasis on fuel efficiency, reliability, and emissions compliance.

Warranty:

PartsMove offers a 365-day warranty on all parts, regardless of their condition. This warranty is valid only for purchases made directly on our website (partsmove.com). Purchases made through third-party platforms, such as eBay or Amazon, are not covered by this warranty.