Product Description
Interstate-McBee M-2872277 Cam / Crank Position Sensor — 2003–2018 5.9L & 6.7L Cummins
Direct-fit engine speed/position sensor that replaces Cummins 2872277. On many B-series applications this unit serves as the camshaft position (CMP) or crankshaft position (CKP) sensor, depending on the engine build. Built to OE form, fit, and function for reliable starts, stable idle, and accurate injection timing. Sold individually.
- OE-style replacement: Matches factory connector and mounting footprint.
- Stable signal output: Helps restore proper ECM synchronization and timing control.
- Durable construction: Quality electronics and housing for harsh under-hood environments.
- Budget-friendly: Interstate-McBee performance at aftermarket pricing.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-2872277 |
| OEM Reference | Cummins 2872277 |
| Function | Engine speed/position sensing (CMP/CKP per application) |
| Connector | OE-style plug (no splicing required) |
| Sold As | Each (1 sensor) |
What's Included
- (1) Cam/Crank Position Sensor, P/N M-2872277
- O-ring/seal (if equipped on your application)
Vehicle Fitment
Always verify by engine serial number (ESN) and existing part number when possible.
- Dodge Ram 2500/3500 with 5.9L Cummins common-rail (2003–2007)
- Dodge/Ram 2500/3500/4500/5500 with 6.7L Cummins (2007.5–2018)
- Other Cummins B-Series on-/off-highway applications where Cummins 2872277 is specified
Symptoms of a Failing Sensor
- Hard starting, extended crank, or no-start
- Intermittent stall or rough idle
- Erratic tachometer or misfire-like surge
- Diagnostic trouble codes related to cam/crank sync
Install Notes
- Disconnect battery ground before service.
- Inspect the tone wheel/reluctor for damage and debris.
- Lightly oil any included O-ring; do not pinch or over-torque the fastener.
- Clear codes and verify sync status and idle quality after installation.
Why Buy From CPP Diesel
- ESN-verified fitment support from diesel specialists
- Fast shipping and easy returns
- Deep inventory of complementary Cummins sensors and harness parts
FAQ
Is this the cam or the crank sensor?
This part number is used by Cummins as an engine speed/position sensor and may serve as the cam or crank sensor depending on the specific engine build. Match to your OEM part number or verify by ESN.
Do I need to perform a relearn?
Most applications do not require a special relearn; however, clearing codes and verifying cam/crank sync with a scan tool is recommended.
Will this fit my truck?
If your parts catalog or your removed sensor shows Cummins 2872277, this is the correct replacement. When in doubt, contact us with your ESN.
