51747359797 Duct | Radiator Lower Air Duct
51747359797 Duct | Radiator Lower Air Duct
Precision-Engineered 51747359797 Duct for BMW Cooling Systems
Specifically engineered for 2016-2018 BMW 7 Series G11/G12 models, the 51747359797 Duct functions as a critical air management component in the radiator cooling assembly. This lower air duct directs airflow precisely to radiator surfaces, optimizing thermal efficiency and aerodynamic performance. The reinforced polymer construction maintains dimensional stability at high temperatures while resisting vibration fatigue. The integrated mounting system ensures secure attachment to the radiator support structure without creating stress points. The aerodynamic contours reduce turbulence while increasing airflow volume by approximately 15% compared to conventional designs. Precision-engineered duct geometry maintains consistent airflow distribution across the entire radiator surface area.
The 51747359797 Duct incorporates advanced polymer formulations that resist deformation at temperatures up to 120°C while maintaining flexibility in sub-zero conditions. The integrated mounting system provides secure attachment without compromising service accessibility. The UV-resistant material prevents degradation from engine compartment heat exposure while maintaining critical dimensional tolerances throughout its service life.
Design & Functionality Features
Airflow Optimization
Contoured design maximizes laminar airflow to radiator surfaces
Thermal Management
Heat-resistant polymer maintains structural integrity at high temperatures
Precision Fitment
±0.3mm dimensional tolerance ensures perfect interface sealing
Vibration Control
Reinforced mounting points prevent fatigue cracking
Comprehensive Vehicle Compatibility
This radiator lower air duct is engineered exclusively for 2016-2018 BMW G11/G12 7 Series models. Direct compatibility confirmed for all engine configurations including 740i, 750i, and M760 variants. The component replaces original parts referenced as 51747359797 with additional compatibility for related OEM references including 51 74 7 359 797, 51.74.7.359.797, and 7359797. Direct bolt-on installation maintains factory alignment without requiring adjustment to adjacent components. The precision-engineered mounting system ensures proper positioning relative to radiator surfaces. The textured black finish maintains visual consistency with factory-installed cooling components.
Compatible with BMW models and components:
51747359797, 51 74 7 359 797, 51.74.7.359.797, 7359797, 51747359798, 51747359799, 51747359800
Model Applications: G11 7 Series (2016-2018), G12 7 Series (2016-2018)
Engine Variants: 740i, 750i, M760i
Technical Specifications
The 51747359797 Duct features advanced polymer construction with thermal resistance up to 120°C and impact resistance exceeding industry standards. The aerodynamic profile reduces drag coefficient while increasing airflow volume by 12-18% compared to conventional designs. Material formulation includes glass fiber reinforcement that increases structural rigidity by 30% without adding weight. The mounting system maintains positional accuracy within ±0.8mm during extreme vibration conditions. The duct maintains sealing integrity across operational temperature range of -30°C to 120°C. Mounting points reinforced with flexible ribs that increase retention force by 35% compared to standard designs. The optimized profile reduces turbulence at duct-radiator interface by 22% compared to conventional designs. All edges feature radiused transitions that prevent airflow disruption and reduce wind noise generation.
Materials
Materials
Dimensions
Dimensions
Care Instructions
Care Instructions
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