Buy 5654088, 4954491 – Genuine Cummins Temperature Sensor - wisentpartscenter.com

Description

4954491 is a Genuine Cummins temperature sensor used on select KTA38, QSK38, QSK50, and QSK60 engine applications. This sensor provides a temperature signal to the engine control system so the ECM can monitor operating conditions and respond correctly to heat-related changes. Verify 4954491 by ESN, original part number, engine model, sensor location, connector style, and the cross-reference / supersession list shown on this page. This part may also be checked against 5654088 and 4954283 when those numbers appear in the service information or on the removed sensor.

Purpose of the Part

The temperature sensor sends engine temperature data to the ECM. Depending on the engine configuration, this information may be used for protection logic, fuel control strategy, warning/shutdown limits, and diagnostic monitoring. A bad sensor can make the ECM see a temperature that is too high, too low, or unstable even when the engine condition is normal.

Issue Symptoms / When to Replace

Common signs that 4954491 may need inspection or replacement include:

  • Incorrect or unstable temperature reading
  • Temperature warning or shutdown event with no confirmed overheating
  • Engine derate related to temperature input
  • Hard fault returning after wiring and connector checks
  • Damaged sensor body, loose connector, corrosion, or oil/coolant contamination at the connector
  • Open circuit, short circuit, or signal out-of-range condition on the temperature sensor circuit

Brand Information

Cummins is the OEM engine manufacturer for KTA and QSK high-horsepower engine platforms and supplies original sensors, electronics, fuel-system, cooling-system, and engine-protection components. For temperature sensors, Genuine Cummins is preferred because the signal must match the ECM’s expected range. A poor-quality sensor can create false temperature readings and lead to unnecessary diagnostics or downtime.

Why Buy 4954491 from Wisent Parts

  • ⏱️
    Fast shipping
    Orders before 12PM EST ship same business day.
  • 🛡️
    180-day warranty
    All parts covered from delivery date.
  • ↩️
    Easy returns
    30-day returns.
  • ✅
    Verify fitment
    Send VIN/ESN and we’ll confirm.

Shop with confidence

Warranty & Return Information
Warranty Information

Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

This part is sold as a final sale item and cannot be returned or refunded, including if it was ordered in error. Please confirm fitment before ordering - send us your VIN, engine serial number, or original part number and we will verify it for you. For full details, please refer to the Returns page.