Original Mercedes AMG X166 GLS AMG 63 Front Rear Bumper Sei

For GLS-Class (X166 Facelift) | AMG Styling Package (Code 772) | 2016–2019

The GLS 63 AMG bumper set is the ultimate exterior upgrade for the X166 generation (the facelifted version of the GL-Class). This set transforms the standard GLS SUV into the aggressive, high-performance “63” look, characterized by massive air intakes, flared wheel arches, and the signature quad-exhaust rear diffuser.  Original Mercedes AMG X166 GLS AMG 63 Front Rear Bumper Sei

1. Front Bumper Assembly (GLS 63)

The GLS 63 front bumper is significantly more aggressive than the standard AMG-Line, featuring a larger “A-wing” and expansive cooling ducts for the M157 Biturbo V8 engine.

• Key Features:

  • Large Side Intakes: Functional mesh grilles for cooling the auxiliary radiators.

  • Center Spoiler: Often finished in Chrome (Standard) or High-Gloss Black (Night Package – Code P55).

     

  • PDC & Camera Support: Holes for 6 Parktronic sensors and a mount for the 360° front camera (under the Mercedes star).

• Common Part Numbers: * Main Skin: A1668858125 (Primed)

  • Lower Trim: A1668858325

     

2. Rear Bumper & Diffuser Assembly

The rear of the GLS 63 is defined by its wide stance and the prominent diffuser housing the legendary quad exhaust tips.

• Key Features:

  • AMG Diffuser: Integrated fins for improved aerodynamics.

     

  • Quad Exhaust Tips: Stainless steel double-tube tailpipes with “AMG” engraving (available in Chrome or Black).

     

  • Flares: To accommodate the wider GLS 63 wheel and tire setup, this bumper set typically includes matching wheel arch extensions.

     

• Common Part Numbers: * Main Skin: A1668855900

   

  • Lower Diffuser: A1668851338

3. Technical Compatibility Matrix

4. Important Retrofit Notes

⚠️ Fitment Warnings:

• GL vs. GLS: While the chassis is similar, the Pre-facelift GL (2012–2015) has different headlight and hood shut-lines. To install a GLS 63 bumper on an older GL, you must also swap the headlights, grille, and hood.

• Wheel Arch Extensions: A genuine GLS 63 front bumper is slightly wider than the standard GLS bumper. Without the matching AMG fender flares, the bumper may appear to “poke out” past the bodywork.

• Tow Hitch (Code 550): If your vehicle has a factory tow bar, you must ensure the rear diffuser has the specific cutout for the hitch, otherwise it will require manual modification.

5. Essential Installation Checklist

A complete “take-off” or new set should include:

1. Bumper Skins: Front and Rear (Primed or Painted).

2. Inner Grilles: Left, right, and center honeycomb mesh.

3. Impact Absorbers: Foam inserts for safety compliance.

4. Exhaust Tips: 4x Tips with mounting brackets.

    

5. Parktronic Holders: Brackets to secure your existing PDC sensors.