For the Mercedes-AMG G63 (W463A/W464), the bumper and Panamericana grille define its aggressive profile. As of 2026, there is a clear distinction between parts for the W463A (2019–2024) and the updated W465 (2025–2026) facelift.

1. Front Bumper Assembly

The G63 bumper is modular. If buying a “complete” unit, it should include the primed cover, internal air ducting, and the three mesh grilles.

• W465 Update: The 2025+ bumper features redesigned, more rounded air intakes and updated sensors for the AMG Active Ride Control system.

• Bull Bar Delete: Many 2026 owners remove the factory brush guard. This requires Bumper Cover Caps to hide the mounting holes:

  • Standard Chrome

  • Night Package (Gloss Black)

  • Night Magno (Matte Black)

2. Panamericana Radiator Grille

The vertical-slat “Panamericana” grille is the hallmark of the G63.

• Classic Chrome: A46388852009999

  • The standard look with high-sheen vertical chrome slats.

• Dark Chrome (Night Package II): 463A-63-Dark

  • Introduced for the latest facelift; features a moody, dark-tinted chrome finish and a gloss black center star.

• Market Value (2026): Genuine assemblies typically retail between

Important: The grille houses the front-facing camera for the 360° Surround View. When swapping grilles, you must transfer your original camera or the vehicle will throw a “Park Assist Unavailable” error.

3. Night Package Styling (NP1 / NP2)

If your G-Class has the Night Package, your bumper and grille parts will have specific blacked-out finishes rather than chrome:

• Outer Bumper Grilles: Finished in High-Gloss Black (A4638857501/7601).

• Underguard (Skid Plate): Often finished in matte or gloss black to match.

• Full Styling Kits: In 2026, many owners buy the Night Package Conversion Kit (approx. $5,800) which replaces all chrome bumper inserts, the grille, and the side mirror caps with genuine black-out parts.

4. Rear Bumper & Sensors

The rear bumper (A4638804602) is slimmer than the standard G550 and includes:

• Stainless Steel Step Plates: Often damaged by heavy loading.

• Blind Spot Assist (Code EA2): The radar sensors are mounted inside the corners. If you are replacing the bumper with an aftermarket unit, ensure it is ABS or Polypropylene; carbon fiber or fiberglass can interfere with the radar signal.

5. Summary Checklist for 2026 Buyers

1. Material: Ensure the bumper is Polypropylene (PP). Aftermarket fiberglass (FRP) parts are common but brittle and difficult to paint-match.

2. Facelift Compatibility: A W465 (2025+) bumper can be retrofitted to a 2020 W463A, but it requires the W465 Conversion Kit (a) which includes new brackets and headlight surrounds.

3. Sensor Count: Verify if your bumper has holes for 6 PDC sensors (standard) or additional mounts for automated parking features.