Cummins Sensors & Senders — part numbers

196 numbers covering pressure senders, temperature senders, speed and position sensors, level senders and the associated connectors and harness parts across mechanical and electronic engine families.

This is a category where the electronic engines and the mechanical engines behave completely differently, and it is worth being clear about which you have. On a mechanical KTA or 855, a sender feeds a gauge or a protection switch — if it fails, you lose an indication or trip a shutdown, and a good-quality equivalent part is a reasonable purchase. On an ISM, ISX, QSX or QSK, sensors feed the ECM, and the ECM makes fuelling and protection decisions from them. A sensor that reads two percent out will not fail visibly; it will quietly alter how the engine runs.

For that reason we quote genuine by default on anything feeding an ECM, and we will tell you explicitly when a Tier 2 option is one we would fit ourselves. On gauge and switch senders for mechanical engines the calculation is different and we will offer both.

The diagnostic point worth making: sensors are replaced far more often than they fail. A fault code naming a sensor frequently indicates a wiring, connector or earth problem rather than the sensor itself, and in this region connector corrosion is a genuinely common cause. Before ordering, it is worth checking the connector and the harness. If the enquiry follows a fault code, send us the code and what has already been checked — it sometimes changes what we recommend.

For a quotation, send the engine serial, and for electronic engines the ECM calibration and any active fault codes.