BMW 3/5/7 Series X3 Z3 Crankshaft Position Sensor 12141438081 / 12147539165

This crankshaft position sensor is designed for BMW 3 Series (E46/E90, 1998–2013, 2.0–3.0L petrol), 5 Series (E39/E60, 2000–2010), 7 Series (E38/E65, 2001–2008), X3 (E83, 2003–2010), and Z3 (1996–2002), covering 2.0–3.0L engines. Core function is monitoring crankshaft speed and position, providing ignition and fuel injection timing signals to the ECU to ensure smooth engine operation. OEM numbers include 12141438081, 12147539165, 12141435350 for cross-checking with factory systems. Replacement difficulty is medium; use specialized tools to remove and clean the installation hole to avoid ingress of foreign objects. For B2B buyers, KLP brand offers cost-effective replacements compatible with many BMW engines, effectively solving startup difficulty, rough idle, or stalling; recommended for bulk stocking to cover common repair needs.