Compatibility and fit Fits Mercedes Benz E Class models: E300 (20122013), E350 (20112013), E400 (2013), E550 (20102013), E63 AMG (20102013) Replacement part numbers Part number: 2128200121, 128200021, A 212 820 00 21, A 212 820 01 21 What you get Package includes: 1 Front Side Right Marker Light, 1 Front Side Left Marker Light Key benefits Direct replacement for the front side marker lights on both sides Restores signaling function and exterior appearance for the front corners Designed to fit original mounting points and connectors, ensuring proper alignment Maintains vehicle safety by providing visible signaling at the correct locations 23 practical use scenarios Scenario 1: Replacing a cracked or faded front side marker light to restore visibility and comply with road safety requirements Scenario 2: During bumper or fender , swapping in marker lights to ensure consistent look and correct fit Scenario 3: Pre vehicle preparation to ensure all exterior lighting is functional and visually consistent with the rest of the car