Ridex 7O0078 oil filter insert for BMW X3 F25 sDrive 20i, fitting the N20 B20 A petrol engine. Cylindrical filter element with integrated gaskets and seals, measuring 74 mm outer diameter × 41 mm inner diameter × 79 mm height. Designed to trap contaminants, carbon particles, and metal debris from engine oil, protecting bearings, camshaft, and turbocharger components from premature wear. Direct replacement for BMW OEM filters — supplied new in RIDEX quality from IATF 16949 certified factories. Recommended replacement interval: every 15,000 km or 12 months.