IFATRUNK Camshaft Position Sensor 2-Pack for BMW 128i/328i/335i X3 X5 Z4 — Direct Fit, OEM-Style Replacement

This replacement pair of camshaft position sensors is designed for a wide range of BMW vehicles and swaps directly for the original part numbers listed by BMW. Built to read camshaft rotation and relay timing data to the ECU, these sensors help the ignition and fuel systems manage cylinder sequencing. The kit includes two sensors for convenience during routine maintenance or when replacing both banks on V‑engines.

How will these sensors affect engine behavior?

Camshaft position sensors monitor the camshaft's rotational position and send that information to the engine computer. When the sensor signal is correct, fuel injection timing and ignition timing remain synchronized; when the signal is weak or absent, you may see rough idling, misfires, or a check engine light.

• Restores accurate cam timing signals to the ECU for consistent combustion.
• Helps reduce rough idle and misfire symptoms when failing sensors are replaced.
• Supports proper sequential fuel injection and variable valve timing systems.

Which BMW models and part numbers does this fit?

This IFATRUNK sensor set fits many BMW models from mid‑2000s through early‑2010s across 3, 5, 6, 7, X and Z series. It is made as a direct replacement for several OEM numbers so installation matches original connectors and mounting points.

• Covers 1, 3, 5, 6, 7, X1/X3/X5/X6 and Z4 model ranges listed for 2006–2012 production years.
• Replaces OE numbers including 13627525014, 13627546660, 13627558518 and related cross references.
• Fits engines commonly specified in BMW fitment guides such as 3.0L, 4.4L and 4.8L variants where applicable.

How simple is installation and what does the package include?

These sensors are designed as direct replacements: they use the same electrical plug and bolt locations as the factory units. Installation is straightforward for anyone comfortable with basic automotive maintenance; typical work requires removing an engine cover and a single mounting bolt, then unplugging and swapping sensors.

• Plug-and-play design for direct swap with factory harness and mounting points.
• Two sensors included—ideal for replacing both banks or keeping a spare on hand.
• If needed, access usually requires basic hand tools and minimal disassembly of nearby engine dress panels.

What are common symptoms that signal a camshaft sensor replacement?

Failing cam sensors create electrical signals that are erratic or absent, and the ECU detects this. Resulting symptoms vary from drivability issues to illumination of diagnostic trouble codes, so replacing a bad sensor often restores predictable engine behavior.

• Hard starting, intermittent stalls, or prolonged crank times.
• Engine misfire, weak acceleration, or rough idling under load.
• Check engine light with camshaft or timing-related diagnostic codes.

Who is this for: The IFATRUNK 2-pack camshaft position sensors are intended for BMW owners, independent mechanics, and professional shops needing a reliable, budget-conscious replacement for factory cam sensors across a broad set of 2006–2012 BMW models. Choose this kit if you want straightforward fitment, two sensors for simultaneous replacement, and compatibility with multiple OEM reference numbers. For vehicles showing timing-related drivability problems or diagnostic codes, these sensors offer a direct swap solution to return timing signals to the engine control unit.