Product Description
Interstate-McBee M-4921597 Camshaft Position Sensor – 98.5–02 5.9L Cummins (24-Valve ISB)
Direct-fit aftermarket camshaft position sensor for the 1998.5–2002 Dodge Ram 2500/3500 equipped with the 5.9L Cummins 24-valve ISB. Restores proper engine timing input to the ECM for consistent starting, smooth idle, and reliable drivability.
- OE-equivalent performance: Matches factory signal quality and response time.
- Plug-and-play: Uses the factory 3-pin connector; no splicing required.
- Durable build: Designed for heat, vibration, and oil exposure at the timing cover.
- Value: Interstate-McBee quality at a budget-friendly price.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-4921597 |
| OEM Reference | Cummins 4921597 |
| Engine | 5.9L Cummins 24-Valve ISB (1998.5–2002) |
| Connector | 3-pin (factory style) |
| Mount Location | Front timing cover (reads cam trigger) |
| Includes | Camshaft position sensor (seal as supplied by manufacturer) |
| Sold As | Each (1 sensor) |
Vehicle Fitment
Always verify by VIN or engine serial number (ESN) when possible.
- Dodge Ram 2500/3500, 5.9L Cummins 24-Valve ISB
- Model Years: 1998.5, 1999, 2000, 2001, 2002
Symptoms of a Failing Cam Sensor
- Hard starting or extended crank time
- Intermittent stall or no-start when hot
- Erratic tachometer or misfire-like behavior
- Stored cam/crank correlation DTCs
Install Notes
- Disconnect battery before service. Allow engine to cool.
- Clean the mounting bore and apply a light film of clean engine oil to the sensor O-ring (if equipped).
- Seat the sensor fully and torque the retaining fastener per service manual.
- Inspect the harness for chafing near the timing cover and repair as needed.
- Clear any diagnostic codes and verify proper crank/start operation.
Why Buy From CPP Diesel
- Diesel-specialist support with ESN verification
- Fast shipping and easy returns
- Deep inventory of complementary Cummins ISB service parts
FAQ
Will this fit my 1998.5–2002 5.9L Cummins?
Yes, this sensor is for the 24-valve ISB used in 1998.5–2002 Ram 2500/3500. For edge cases, confirm by VIN/ESN and the OEM reference 4921597.
Do I need to program anything after installation?
No programming is typically required. Clear codes and verify operation after installation.
What if my truck still cranks a long time after replacing this?
Inspect the crankshaft position sensor, battery/ground health, and fuel supply (lift pump pressure). Wiring integrity at the timing cover is also common.
Is a new O-ring included?
Many sensors ship with a seal; if not, reuse a serviceable O-ring or replace with a new one matching the OEM spec.
