GM GENUINE PARTS Camshaft Position Sensor 213-3826 (12591720) OEM Fit, Direct Replacement for GM Vehicles

If your vehicle is experiencing hesitation, rough idle, or trouble with ignition and fuel timing, the camshaft position sensor is a common wear item to inspect. This GM Genuine Parts sensor is built to the original equipment specifications for fit, connector type, and operating characteristics, helping maintain factory-like performance and service life on compatible GM vehicles. It sends the camshaft position signal to the engine control unit so timing decisions—like spark and injector sequencing—can be made correctly.

How does this sensor affect engine performance?

The camshaft position sensor supplies the engine control module with precise information about camshaft rotation. When that data is accurate, the ECU can sync fuel injection and ignition timing to the crankshaft position, improving smoothness and drivability. A failing sensor can cause misfires, stalled starts, or activation of the check-engine light.

• Provides real-time camshaft rotation signals to the ECU
• Helps the engine maintain correct ignition and injection timing
• Reduces erratic idling, misfires, and driveability complaints when functioning

What makes the 213-3826 (12591720) the right replacement choice?

This part is offered under the GM Genuine Parts program, produced to match original GM specifications for form, fit, and function. Using an OEM-style sensor minimizes installation hurdles and electrical compatibility issues that can arise with generic aftermarket units. The connector, mounting dimensions, and sensing characteristics are matched to the vehicle’s original design.

• Manufactured to original GM specifications for a direct fit
• Compatible electrical connector and mounting arrangement
• Designed to provide expected durability and service life

How do I know if my camshaft position sensor needs replacement?

Signs of a failing camshaft position sensor include intermittent engine performance problems, difficulty starting, and an illuminated check-engine light with codes related to cam/crank correlation. Diagnostic trouble codes from an OBD-II scanner and visual inspection of the connector and wiring can help confirm the issue before replacing the sensor. Replacing a suspect sensor with an OEM-quality part reduces the chance of repeat problems.

• Check-engine light with cam/crank correlation DTCs
• Hard starting, rough idle, or intermittent stalling
• Inspect wiring and connector for corrosion or damage

What should I expect during installation and maintenance?

Replacement is typically straightforward: remove the electrical connector, unfasten the mounting bolt(s), and swap the sensor for the new OEM unit. Follow vehicle-specific torque and alignment instructions, and clear stored engine codes after installation. No routine calibration is normally required when installing the correct GM Genuine Parts sensor, but always consult the vehicle service manual for model-specific steps.

• Simple bolt-and-connector replacement in most applications
• Clear codes after installation and perform a brief road test
• Refer to vehicle service manual for torque and alignment specs

Who is this for: The GM Genuine Parts 213-3826 (12591720) camshaft position sensor is intended for owners and technicians working on GM vehicles that require an OEM replacement sensor. It’s a suitable choice for anyone who wants a direct-fit, manufacturer-specified part to restore factory timing signals and avoid compatibility issues associated with non-original aftermarket units.