51748059855 Duct | OEM-Spec Cooling for BMW M-Performance (2017-2023)

51748059855 Duct: BMW Brake Cooling System Component

Optimizing brake cooling performance for BMW vehicles, the 51748059855 air duct directs targeted airflow to critical braking components. This precisely engineered 51748059855 Duct maintains consistent thermal management during demanding driving conditions through its aerodynamic profile and heat-resistant construction. The component's molded polymer construction withstands extreme temperature fluctuations while resisting degradation from road contaminants and environmental exposure. Strategically positioned within the front bumper assembly, this left-side duct captures high-velocity air and channels it efficiently toward the brake rotor assembly. Installation requires no vehicle modifications, utilizing original mounting points and fastener locations for precision alignment with BMW's factory specifications.

Internal airflow channels feature optimized geometries that accelerate cooling air velocity by 35% compared to conventional designs. The duct's reinforced structural ribs prevent deformation under high aerodynamic loads while maintaining dimensional stability. UV-resistant material formulation prevents color fading and material degradation throughout seasonal temperature extremes. Manufacturing tolerances within 0.4mm ensure seamless integration with OEM bumper profiles and adjacent components. The component's integrated mounting flanges accommodate natural vehicle vibrations without developing stress fractures. Smooth interior surfaces minimize air turbulence while preventing debris accumulation that could obstruct airflow pathways to the braking system.

Vehicle Fitment Specifications

Technical Specifications