Feature●Holstein Parts Crankshaft Position Sensors are direct OE replacements for these critical engine components, offering perfect fit, form and function for flawless operation that restores your vehicle to factory levels of performance●Precision engineered sensor exactly duplicates the function of the OE component - ensuring smooth, powerful engine performance and maximum fuel economy●Manufactured with premium materials that ensure rugged, long-term performance and the heat resistance necessary to withstand high engine operating temperatures●Grommets, screws, and other hardware are included (where applicable) to ensure proper fit and a tight, leakproof seal●Backed by Holstein Parts 3 year/36k mile warranty - we believe in our parts and our warranty shows it●Compatible with select (verify specific vehicle fitment details with fit checker above): BMW: 2001-04 320i, 2000 323Ci, 1998-00 323i, 2001-06 325Ci, 2001-05 325i/xi, 2000 328Ci, 1996-00 328i, 1996-99 328is, 2001-06 330Ci, 2001-05 330i, 2001-04 330xi●BMW: 2001-05 525i, 1999-00 528i, 2001-05 530i, 1996-99 M3, 2004-06 X3, 2001-06 X5, 1997-02 Z3, 2003-05 Z4Description Holstein Parts Crankshaft Position Sensors are direct OE replacements for these critical engine components, offering perfect fit, form, and function for flawless operation that restores your vehicle to factory levels of performance. Precision engineered sensor exactly duplicates the function of the OE component - ensuring smooth, powerful engine performance and maximum fuel economy. Manufactured with premium materials that ensure rugged, long-term performance and the heat resistance necessary to withstand high engine operating temperatures. Grommets, screws, and other hardware are included (where applicable) to ensure proper fit and a tight, leakproof seal. Backed by Holstein Parts 3 year/36K mile **- we believe in our parts and our **shows it! Arrives packaged in a Zip-Loc style anti-static bag that protects the electronic circuitry and components.