Product Description
Genuine Cummins
Cummins 3920364 — Coolant Temperature Sensor (ECT) for 5.9L 12-Valve
MPN: 3920364 | Also Known As: coolant temp sensor, ECT sensor, temperature sender | Related: 3920363 (’92–’97 12V), 4954905 (’98.5+ ISB)
Why This Part
- ✓ OE signal accuracy so the PCM/cluster reads true coolant temperature.
- ✓ Direct-fit for 1998 Ram 2500/3500 5.9L 12-valve (verify by VIN/ESN).
- ✓ Durable OE construction and correct connector indexing.
- ✓ Helps prevent overheating & drivability issues due to bad readings.
OE Fit Stock Replacement 1 Per Engine
Quick Specs
| Type | Engine coolant temperature sensor (ECT) |
|---|---|
| OE Part # | 3920364 |
| Qty Required | 1 per engine (sold individually) |
| Connector | 2-pin style used on 1998 12V; matching pigtails available |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1998 | 5.9L 12-Valve (6BT) | Dodge Ram 2500/3500 |
Notes: 1992–1997 12-valve trucks typically use sensor 3920363. Common-rail ISB (1998.5+) uses 4954905. Always verify by VIN/ESN.
Often Paired With
- Connector/Pigtail: Fleece/Geno’s 2-wire repair pigtail for 3920364/4954905
- Thermostat & coolant service when chasing temperature faults
What’s In The Box
- (1) Genuine Cummins Coolant Temperature Sensor (3920364)
- Connector/pigtail sold separately
Install Tips
- Work on a cool engine; catch/clean any spilled coolant.
- Lightly oil the threads/seal as specified; torque to factory spec.
- Clear codes, warm engine, and verify temp readings with a scan tool.
FAQ
WILL THIS FIT MY 1998 5.9L 12-VALVE CUMMINS?Yes—3920364 is the OE ECT sensor for 1998 Dodge Ram 2500/3500 with the 5.9L 12-valve engine (verify by VIN/ESN).
WHAT SENSOR DO 1992–1997 12-VALVE TRUCKS USE?Most ’92–’97 12V applications use Cummins 3920363. 3920364 is the 1998 12V application.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3920364 for proper calibration and durability.
DO I NEED A NEW CONNECTOR?If your connector is brittle or damaged, use a 2-wire repair pigtail compatible with 3920364/4954905.
WILL THIS WORK ON COMMON-RAIL 5.9/6.7?No—those engines generally use sensor 4954905. This listing targets the 1998 12-valve.
Product Videos
Custom Field
Vehicle Year 1998
Vehicle Make DODGE
ENGINE 5.9L 12V CUMMINS
