Mopar 5149141AF (also written 05149141AF) is the camshaft position sensor for the JK's 3.6. The engine computer uses it to time fuel and spark. When it fails you can get hard starts, stalling or a no-start, along with cam sensor codes. Dorman 907-728 is the aftermarket equivalent.
Fitment
2012–2018 Wrangler JK with the 3.6 Pentastar. Mopar's listing includes the mounting screw. Always confirm the number on your old part or run your VIN at a Mopar parts counter before you order.
Common failure symptoms
- Cam position codes (P0340-series or bank/sensor correlation codes)
- Long crank or hard start, especially warm
- Stalling or stumbling while driving
- Check engine light with reduced power on some Jeeps
Cross-reference
| Brand | Part number | Notes | Source |
|---|---|---|---|
| Mopar | 5149141AF | OEM sensor with mounting screw. | source |
| Dorman | 907-728 | Cross-referenced to 5149141AF. | source |
| Not this one | Dorman 907-747 | Fits 2005–2006 Wrangler (crosses 5149034AA). Wrong part for a 3.6. | source |
Rebuild, repair or replace?
Sensors are replaced, not repaired. Read the code to find out which cam sensor (bank and position) is reporting. The 3.6 has more than one, and buying the wrong location wastes a trip. Check the connector for oil or corrosion before replacing anything. Correlation codes can also come from timing chain or phaser problems, not just the sensor, so if a new sensor doesn't clear a correlation code, look deeper.
Mopar's catalog lists the sensor under engine sensors for the 3.6L V6 24V VVT engine and includes the mounting screw. Clean the mounting bore before installing the new sensor and seat it fully by hand before tightening. A sensor that isn't flush can read poorly and set a new code. If you have a scan tool with live data, watching cam/crank sync while cranking helps confirm whether the sensor is the problem before you spend money.
FAQ
Is Dorman 907-728 equivalent to Mopar 5149141AF?
Yes. Dorman cross-references it to 5149141AF.
Is 907-747 right for my JK?
No. That one fits 2005–2006 Wranglers.
Can a cam sensor cause a no-start?
Yes, a failed sensor can cause a long crank, stall or no-start.
Related guides
Sources
Part numbers and fitment were checked against the sources above on October 22, 2026. Mopar supersedes numbers over time. If a newer letter suffix shows up, it generally replaces the one listed here. Back to the parts lookup.