Product Description
Cummins 3930318 — Throttle Position Sensor (TPS)
MPN: 3930318 | Also Known As: throttle position sensor, position sensor | Cross-Ref: Mopar 4874412
Why This Part
- ✓ OE accuracy for throttle signal input to PCM/TCM on many ’94–’98 trucks.
- ✓ Direct-fit for 5.9L 12-valve Ram applications (see fitment).
- ✓ Restores shift quality & drivability on vehicles with a failing TPS.
- ✓ Genuine Cummins quality and durability.
Quick Specs
| Type | Throttle Position Sensor (TPS) |
|---|---|
| OE Part # | 3930318 |
| Cross-Reference | Mopar 4874412 |
| Qty Required | 1 per vehicle (sold individually) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 1994–1998 | Ram 5.9L 12-Valve (6BT) | Ram 2500/3500 |
Notes: This TPS is widely used on ’94–’98 12-valve Rams and many B-Series applications. System behavior varies by calibration; always verify by VIN/ESN.
Often Paired With
- Connector/pigtail repair (if wiring is heat-hardened or damaged)
- Throttle linkage bushings/adjustment (restore smooth input)
- Fresh dielectric grease for terminals
What’s In The Box
- (1) Genuine Cummins Throttle Position Sensor (3930318)
- Mounting hardware not included (reuse factory fasteners)
Install Tips
- Disconnect battery; handle connectors carefully to avoid pin damage.
- Follow factory service procedures; some trucks require TPS voltage adjustment after install.
- Road-test and verify shift behavior/lock-up after replacement.
FAQ
WILL THIS FIT MY 1994–1998 5.9L 12-VALVE RAM?Yes—this is the OE Cummins TPS used on many 1994–1998 Ram 2500/3500 5.9L 12-valve applications (verify by VIN/ESN).
DOES THIS REPLACE MOPAR 4874412?Yes—4874412 is a common Mopar reference for the same TPS used on ’94–’98 5.9L trucks.
IS CALIBRATION/ADJUSTMENT REQUIRED?Some trucks require TPS voltage adjustment after install. Follow the service manual for your calibration.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3930318 with factory specifications and signal accuracy.
WILL THIS WORK ON OTHER B-SERIES ENGINES?It’s used broadly across B/ISB/QSB platforms and is listed by Cummins for non-certified 5.9L B applications; industrial fitment should be confirmed by ESN.
