Premium PerformanceThis 9040 6-Piston Big Brake Caliper (Pair) is a direct-replacement component for BMW E39 M5, E38, E46 (18-inch) (1995-2003). It is manufactured to OEM specifications for a reliable, long-service replacement that restores factory braking performance and safety. Reference OEM number(s): 9040 pattern (BBK).Features Precision CNC-machined 6-pot design track-grade performance OEM-quality construction Direct replacement - no modification required Precision manufacturing and quality testing Corrosion-resistant materials Designed for proper fitment and reliable performance Specifications OEM Number: 9040 pattern (BBK) Material: Aluminium (forged/billet) Position: Front Condition: New Vehicle CompatibilityFront 6-piston big brake kit calipers for BMW E39 M5 and 18-inch wheel applications (performance upgrade).Package Includes1 x Pair (2 Calipers)Installation NoticeProfessional installation is recommended. Verify vehicle compatibility and OEM part numbers before ordering. For safety-critical braking components, have the system inspected by a qualified mechanic after installation.Vehicle Compatibility Year Make Model Trim Engine Notes 1995–2003 BMW E39 M5, E38, E46 (18-inch) 9040 6-Piston Big Front 6-piston big brake kit calipers for E39 M5 and 18-inch wheel applications (performance upgrade