51117222856 Lower Grille | Front Bumper Ventilation System

Name: 51117222856 Lower Grille | Front Bumper Ventilation System
Brand: FANCHANTS China Auto Parts Wholesales
Availability: InStock

Product variants

51117222856 Lower Grille | BMW E70 X5 LCI Front Bumper Ventilation System

51117222856 Lower Grille: E70 X5 LCI Front Bumper Protection System

Specifically engineered for 2011-2013 BMW X5 E70 LCI models, the 51117222856 Lower Grille delivers enhanced protection for critical front bumper components while maintaining factory-spec airflow dynamics. This textured black plastic assembly combines impact-modified ABS with glass fiber reinforcement, achieving optimal balance between structural rigidity and weight efficiency. The geometric ventilation pattern reduces road debris penetration by 62% compared to open designs, while maintaining 98% of original cooling system airflow capacity. Precision-molded clip locations ensure direct replacement compatibility with original bumper mounting points, featuring corrosion-resistant stainless steel fasteners pre-installed for simplified installation. Surface texture replication employs injection molding tooling with laser-etched cavities to match BMW's signature coarse-grain pattern within ±0.25mm dimensional accuracy.

51117222856

14486123

Direct-fit replacement for central bumper ventilation assembly

Textured black plastic surface of 51117222856 bumper grille

Factory-matched textured surface with UV protection

Optimized airflow design of 51117222856 lower grille

Debris-deflecting hexagonal ventilation pattern

Technical Specifications: 51117222856 Lower Grille

Advanced Composite Construction

Utilizes hybrid ABS+GF30 material formulation with 15% glass fiber content for enhanced impact resistance while maintaining 2.8mm wall thickness consistency. The textured surface incorporates UV-inhibited additives that block 95% of solar radiation, preventing surface degradation. Multi-stage injection molding process creates integrated mounting bosses with ±0.1mm positional accuracy, ensuring perfect alignment with bumper retention points. Internal reinforcement ribs follow computational fluid dynamics (CFD) patterns to optimize structural integrity without compromising airflow efficiency. The black pigmentation system uses thermal-stable colorants that resist fading across -30°C to 120°C operational range.

Protection Engineering

Hexagonal cell pattern designed through particle impact simulations to deflect stones up to 12mm diameter at highway speeds, while maintaining laminar airflow to cooling components. The 63-degree angled vertical vanes redirect debris downward away from radiator surfaces. Integrated rubber edge trim creates vibration-dampening buffer between grille and bumper surfaces. All mounting hardware features zinc-nickel plating with salt spray resistance exceeding 720 hours. The assembly weighs 1,150g ±2%, matching original equipment mass distribution for unchanged vehicle dynamics.

Vehicle Compatibility Details

Designed exclusively for BMW X5 E70 LCI models produced between June 2011 and August 2013. Compatible with all engine variants including xDrive35d, xDrive35i, and xDrive50i configurations. The 51117222856 part number specifies the central lower grille position, working in conjunction with upper bumper components. Installation requires no bumper removal - simply release existing clips through wheel well access points and align new grille using pre-marked positioning guides. Compatible with factory fog light assemblies and parking sensor systems. Not compatible with pre-LCI models (2007-2010) due to redesigned bumper architecture. Cross-references original BMW part numbers 51117222856 and 14486123 for precise fitment verification.