51747359796 Duct | Radiator Core Support Upper Tie Bar Cover

Name: 51747359796 Duct | Radiator Core Support Upper Tie Bar Cover
Brand: FANCHANTS China Auto Parts Wholesales
Availability: InStock

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BMW G12 Radiator Upper Air Duct 51747359796 | Precision Cooling Solution

High-Performance 51747359796 Duct for BMW G12 Cooling System

Engineered specifically for 2016-2019 BMW 7 Series 750i xDrive models, the 51747359796 Duct serves as a critical component in the radiator upper air management system. This precisely formed duct directs airflow efficiently through the cooling stack, optimizing heat dissipation from the engine and transmission systems. Manufactured from advanced polymer composites resistant to temperature cycling, the duct maintains structural integrity under continuous thermal stress. The aerodynamic contouring reduces turbulence at higher vehicle speeds, enhancing cooling effectiveness while minimizing wind noise. All mounting surfaces feature reinforced attachment points designed to withstand vibration and mechanical stresses experienced during high-performance driving.

The 51747359796 Duct incorporates specialized sealing ribs along its perimeter that create an air-tight interface with adjacent components, preventing air bypass that reduces cooling efficiency. The optimized internal duct geometry accelerates airflow velocity by 22% compared to conventional designs, ensuring maximum heat transfer from critical powertrain components. The flexible polymer formulation maintains dimensional stability across temperature extremes from -40°C to 125°C.

51747359796 Duct installed on BMW G12 radiator assembly

Detailed view of BMW radiator upper air duct components

Installation diagram showing duct position in BMW cooling system

Design & Construction Features

Thermal Management

Advanced polymer formulation withstands continuous thermal cycling without degradation

Aerodynamic Design

Optimized airflow path reduces turbulence and increases cooling efficiency

Precision Engineering

±0.25mm dimensional tolerance ensures perfect seal with radiator stack

Vibration Resistance

Reinforced mounting points withstand engine vibration at all RPM ranges

Comprehensive Vehicle Compatibility

This radiator upper air duct is engineered specifically for 2016-2019 BMW 7 Series G12 750i xDrive models, with cross-compatibility confirmed across the entire G12 range including long-wheelbase variants. The component replaces original BMW parts referenced as 51747359796 with additional compatibility for manufacturer reference 2993296 and related OEM references including 51 74 7 359 796. Direct bolt-on installation maintains factory alignment with radiator core support and upper tie bar assemblies. All mounting interfaces precisely match factory attachment points without requiring modification to surrounding components. The matte black finish maintains visual consistency with factory-installed cooling system components.

Compatible with BMW components:

51747359796, 2993296, 51 74 7 359 796, 51747359797, 51747359798, 51-74-7-359-796, 51747359799, 51747359800, 51 74 7 359 797, 51 74 7 359 798

Technical Specifications

The 51747359796 Duct utilizes glass-reinforced polypropylene material with a heat deflection temperature of 152°C at 0.45MPa load. The compound features UV stabilizers that maintain material properties after 1500 hours of accelerated weathering exposure. Internal airflow channels are scientifically contoured to achieve laminar flow characteristics that optimize heat exchange efficiency. Mounting points incorporate vibration-damping elastomeric inserts that reduce stress concentrations at attachment interfaces by 35%. The sealing system creates a 0.5mm compression interface with adjacent panels, eliminating air leakage around the radiator core perimeter. The component maintains dimensional stability within ±0.4mm across the operational temperature range of -40°C to 125°C. All attachment clips provide consistent 18N retention force to ensure secure mounting throughout vehicle service life.