51127238522 Rear Bumper | Sensor-Integrated Impact Absorber for Luxury Sedan Platforms

Engineered as direct replacement for the 51127238522 Rear Bumper, this assembly features injection-molded thermoplastic construction with integrated parking sensor receptacles. The left-side exhaust cutout maintains precise 12mm clearance from tailpipe surfaces, while the primed surface preparation ensures OEM-level paint adhesion. Sixteen pre-drilled mounting points align with factory underbody reinforcement brackets.

Aerodynamic contouring replicates original equipment drag coefficient within 2% variance. Impact-resistant reinforcement ribs are vacuum-formed into the substrate, providing 18% greater compressive strength than standard aftermarket units. The bumper's radar-compatible design preserves driver assistance system functionality.

Material Composition

• • Base Material: TPO Thermoplastic
• • Wall Thickness: 3.2mm ±0.15mm
• • Primer: 2K Urethane Basecoat
• • Thermal Resistance: -40°C to 120°C
• • Weight: 8.2kg ±5%

Direct fitment for: F10 5 Series Sedan 2011-2013 Model Years 528i/528i xDrive
OE Reference Patterns: 51 12 7 238 522 51.12.7.238.522 51127238522 BM1100248