51747383846 Radiator Baffle | Aerodynamic Thermal Management Compliance
51747383846 Radiator Baffle | Aerodynamic Thermal Management Compliance
51747383846 Radiator Baffle Aerodynamic Cooling Management
Engineered specifically for 2018-2020 BMW 5 Series G30/G38 models, the 51747383846 Radiator Baffle optimizes cooling system efficiency through precision-engineered airflow management. Manufactured using glass-reinforced polypropylene composite, this component directs incoming air through strategically positioned channels while preventing turbulent airflow around radiator surfaces. The structural design incorporates vibration-dampening properties that maintain seal integrity against the radiator core during all driving conditions. The integrated mounting system utilizes thermo-resistant clips that maintain tension across temperature extremes from -40°C to 120°C.
Computational fluid dynamics informs the aerodynamic contours that accelerate cooling airflow while reducing drag coefficient by 18% compared to conventional designs. The textured surface finish replicates factory specifications while incorporating hydrophobic additives that repel water and road debris. Precision alignment features ensure perfect positioning relative to bumper assemblies and radiator support structures. Impact-resistant formulation maintains dimensional stability during high-pressure washdowns while UV-resistant additives prevent material degradation from solar exposure. The modular construction allows individual replacement without requiring cooling system disassembly.


Technical Specifications
- • Material Composition: Glass-reinforced PP-T20
- • Temperature Range: -40°C to 120°C
- • UV Resistance: 2500+ hours xenon testing
- • Hydrostatic Stability: IPX7 rating
- • Vibration Resistance: Class A per SAE J2380
- • Mounting System: Compression-lock retention
- • Surface Finish: Texture-matched OEM specification
Verified Compatibility
The 51747383846 Radiator Baffle maintains precise alignment with factory mounting points across all G30/G38 platform variations including long-wheelbase configurations. Compatibility extends to all engine options including hybrid powertrains and M Performance variants. The aerodynamic profile remains consistent with BMW's thermal management specifications regardless of regional climate variations. Installation requires no modification to existing radiator assemblies or front bumper components with exact dimensional replication ensuring proper sealing surfaces.
OE Reference Numbers
Materials
Materials
Dimensions
Dimensions
Care Instructions
Care Instructions





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