51128075447 Cover | Rear Bumper Lower Section Assembly

51128075447 Cover

Specifically engineered for BMW 2 Series Gran Coupe models, the 51128075447 Cover provides precise aerodynamic enhancement and impact protection for rear bumper assemblies while maintaining OEM-level surface continuity with factory-matched curvature and texture.

Product Description

The 51128075447 Cover integrates seamlessly with BMW 2 Series Gran Coupe rear bumper assemblies to enhance aerodynamic efficiency while protecting critical underbody components. Constructed from impact-modified thermoplastic polyolefin (TPO) with glass fiber reinforcement, this component withstands road debris impacts up to 1.5kg at highway speeds. Precision-molded contours match factory bumper profiles within ±0.8mm tolerance, ensuring perfect visual alignment with existing body lines. Integrated airflow channels reduce turbulent drag coefficients by 6-8% compared to uncovered bumper configurations. Textured surface treatment replicates OEM matte-black finishes while providing resistance against stone chips and UV degradation. Quick-release fasteners allow for tool-free installation without requiring bumper removal, with alignment guides ensuring proper positioning relative to exhaust tips and sensor cutouts. Reinforced mounting tabs prevent vibration-induced stress fractures, maintaining structural integrity through extreme temperature cycles (-30°C to 80°C). Compatible with parking sensor systems and rear camera configurations through pre-molded access ports.

Compatibility Information

Technical Specifications

Compatible Product Declaration

Compatible with BMW 2 Series Gran Coupe vehicles requiring rear bumper lower section replacement. Developed to match original design specifications for aerodynamic performance and structural integration. Validated references include 51128075447 and 5112 807 54 47 identifiers.