Your vehicles Camshaft Position Sensor is a key component to your engine's timing and firing system. The Camshaft Position Sensor in most vehicles sends a signal to the Electronic Control Module (ECM) letting the computer know the position of the engine for timing and fuel injection pulses to the engine.

A bad or malfunctioning cam sensor will often cause a service engine light error code, and or cause a no start condition, or rough running due to inaccurate ignition and fuel timing.


  • Brand New Camshaft Position Sensor
  • Replaces dealer part number: 12 14 7 539 166, 12147539166
  • 100% factory tested
  • Direct replacement
  • Built to strict quality control standards

Your Engine size can usually be found on a white sticker in the engine compartment near the radiator. If needed, your VIN code is the 8th digit of your vehicles Vehicle Identification number. The VIN can be found on the bottom drivers side corner of the windshield and on your registration. Some refer to the VIN code as the Serial Number.

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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Camshaft sensor
Fit pretty good on my 2000 BMW 540i, car seems to be running fine so great part for the price.
July 18, 2017
11 months ago
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Vehicle Fit

  • 1999-2003 BMW 540i Camshaft Position Sensor V8 4.4L
  • 1999-2000 BMW 540iT Camshaft Position Sensor V8 4.4L
  • 1999-2001 BMW 740i Camshaft Position Sensor V8 4.4L
  • 2000-2001 BMW 740iL Camshaft Position Sensor V8 4.4L
  • 2000-2005 BMW X5 Camshaft Position Sensor V8 4.4L
  • 2003-2005 Land Rover Range Rover Camshaft Position Sensor V8 4.4L

This part replaces:

  • OE # 12 14 7 539 166
  • Standard Motor Products PC309
Part #: 1ACPS00045

Ships Same Day for orders placed by 4 P.M. ET