51127227757 Bumper Bracket | Rear Bumper Structural Support

Name: 51127227757 Bumper Bracket | Rear Bumper Structural Support
Brand: FANCHANTS China Auto Parts Wholesales
Availability: InStock

Product variants

51127227757 Bumper Bracket | BMW E70 X5 Rear Support Components

51127227757 Bumper Bracket: Precision Support for E70 X5 Rear Assembly

Designed specifically for 2010-2013 BMW E70 X5 LCI models, the 51127227757 Bumper Bracket delivers essential structural reinforcement to the vehicle's rear bumper system. Manufactured to exact OEM specifications, this left-side bracket maintains critical alignment between bumper cover and frame rail while dissipating impact forces through its engineered rib structure. The glass-reinforced polypropylene construction withstands extreme temperature fluctuations without deformation, while UV inhibitors prevent material degradation from sun exposure. Precision-molded mounting points ensure accurate sensor positioning for parking assistance systems, with integrated wiring channels protecting electrical components from vibration damage.

51127227757

51127227758

E70-LB57

E70-RB58

51127227757 Left Bumper Bracket mounted on BMW E70 X5 rear frame

Direct-fit installation showing factory mounting points

Structural rib pattern and sensor alignment features

Engineered impact absorption geometry

51127227757 left and 51127227758 right bracket comparison

Left and right bracket configuration overview

Technical Specifications: 51127227757 Bumper Bracket

Material Composition

Constructed from 35% glass-fiber reinforced polypropylene composite with ISO 527 tensile strength exceeding 80MPa. The dual-injection molding process creates load-bearing ribs with 3.2mm wall thickness in high-stress zones. UV stabilization compounds provide 10+ years of sunlight resistance without cracking or fading. All mounting surfaces maintain 0.2mm flatness tolerance to prevent bumper cover distortion. Material formulation meets FMVSS 302 flammability standards with self-extinguishing properties. Surface texture precisely replicates OEM finish for seamless visual integration.

Functional Engineering

Integrated wiring channels protect parking sensor cables from vibration abrasion and moisture ingress. Asymmetric mounting bosses accommodate both standard and M Sport bumper configurations without modification. Zinc-plated steel inserts in fastener receptacles prevent thread stripping during torque application (9-12Nm specification). The optimized rib pattern distributes impact forces across three load paths to minimize localized stress. The bracket maintains 5mm clearance from exhaust components in all engine configurations including 180kW diesel variants. Precision locating pins ensure ±1.5mm installation tolerance.

Vehicle Compatibility Information

Engineered for all 2010-2013 BMW E70 X5 LCI models including xDrive35i, xDrive50i, xDrive30d, and xDrive40d variants with 180kW diesel engines. Not compatible with pre-LCI models or vehicles equipped with factory tow packages requiring reinforced brackets. The 51127227757 left bracket must be paired with 51127227758 right bracket for symmetrical support. Proper installation maintains functionality of rear parking sensors, backup cameras, and tailgate systems. Verify bumper configuration (standard or M Sport) before installation as mounting points differ.