Introduction
Few vehicles embody power and prestige like the legendary Mercedes AMG G-63. However, the allure of this super-SUV lies not just in its thunderous V8, but also in the meticulous craftsmanship of its details. For those committed to keeping their G-63 Like New, investing in genuine OEM parts—like the striking Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805503 A4638805603—is essential.
Moreover, these specific mudguards don’t just add aggressive good looks. They play a vital role in protecting your investment, ensuring paintwork longevity, and upholding that coveted Mercedes-Benz warranty. Let’s explore why these OEM parts are so highly regarded within the G-class community.
Why OEM Parts Matter for the G-63
When it comes to the iconic Mercedes AMG G-63, authenticity isn’t optional; it’s a must. Therefore, choosing only original equipment manufacturer (OEM) parts guarantees flawless integration, exceptional build quality, and the unmatched reliability owners expect from Mercedes-Benz.
In addition, parts like the Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805503 A4638805603 represent the ultimate peace of mind. Unlike generic aftermarket replacements, these components come directly from Mercedes-approved suppliers and match factory specifications down to the last detail.
For example, installing OEM mudguard extensions ensures your G-63 maintains its aggressive fender profile while providing perfect fitment, durability, and protection. Similarly, these genuine parts preserve your vehicle’s resale value and help avoid warranty issues that often arise from non-OEM modifications.
Key OEM Parts Categories and Specifications
Genuine Mercedes-Benz parts impact every corner of the G-63’s engineering. From advanced electronics to high-strength body panels, OEM quality reigns supreme. Let’s focus on the wheel thread mudguard widening kits, including Factory Gloss Black P/N A4638805503 and A4638805603—the Left-Hand (LH) and Right-Hand (RH) front fender extensions.
Meanwhile, these specific mudguards exemplify Mercedes’ obsessive attention to detail:
- Factory color-matched gloss black finish for seamless aesthetic integration
- Precision-molded for exact wheel arch contours of the G-63 chassis
- Meticulously engineered to optimize tire clearance and suppress road debris
- 95%+ brand new, directly out of the OEM parts packaging
- Durable ABS construction with UV-stable coating resists chips and fading
Furthermore, vehicle compatibility covers the entire W463A G-63 AMG series (model years 2019+), ensuring authentic integration no matter your specification.
Quick Part Reference
- LH (driver’s side) wheel arch extension: OEM A4638805503
- RH (passenger’s side) wheel arch extension: OEM A4638805603
In addition, these parts complement other OEM G-63 accessories—side steps, bumper covers, and underbody shields—by providing enhanced wheel protection and sportier sidelines.
If you are searching for more authentic G-63 components, check the full stock list here.
OEM vs Aftermarket: Why Original Wins
Why choose OEM over aftermarket? The answer is clear: original parts deliver performance, warranty protection, and unmatched fit. In contrast, aftermarket mudguards often compromise on materials and design, risking poor alignment, premature wear, or even pricy damage to paint or wheel arches.
Moreover, only genuine Mercedes-Benz parts—like the Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805503 A4638805603—maintain factory paint codes and tolerances. For example, you don’t need to worry about mismatched gloss or panel contours. As a result, resale value remains high, and your G-63’s legendary road presence endures.
Furthermore, using only OEM parts preserves new-car warranty coverage. Mercedes-Benz’s stringent warranty terms may be voided if unauthorized accessories or non-factory replacements are added. Thus, your investment remains protected when you stick to brand-approved components.
Installation Tips and Maintenance Best Practices
Installing the proper OEM wheel thread mudguard widening extensions is straightforward when you follow Mercedes-Benz guidelines. However, always verify that both LH (A4638805503) and RH (A4638805603) units are present and undamaged before beginning. Organize all required mounting hardware and review torque specifications in your owner’s manual.
For example, align the mudguard to the fender edge, ensuring proper contact with wheel arch lines. Secure the extension using the specified fasteners—avoid overtightening, as this can damage the mounting tabs or the paint underneath. If you have any doubts, professional installation at a qualified Mercedes workshop is strongly recommended.
Consequently, regular maintenance preserves your new mudguards’ Like New finish and durability. Gently wash these panels with automotive shampoo, and avoid abrasive chemicals that could dull the gloss over time. Inspect fasteners periodically and re-tighten as needed, especially after off-road excursions or rough road conditions.
Meanwhile, periodic visual checks ensure you catch any chips or damage before they escalate, protecting your G-63 from corrosion or further wear.
Where to Buy Genuine G-63 Parts in the UAE
Ready to elevate your Mercedes AMG G-63 with authentic, OEM-spec mudguards? For peace of mind and guaranteed originality, always buy from accredited dealers or specialized workshops in the region. The team at Dourado Auto Service in Dubai stocks a wide array of factory parts—including the hard-to-find Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805503 A4638805603.
In addition, you can browse their G-63 AMG parts listings here for exclusive deals and quick shipping across the UAE.
For a quick visual overview, see this external resource.

Conclusion and Call to Action
In conclusion, keeping your Mercedes AMG G-63 authentic and resilient starts with selecting genuine OEM parts. Therefore, for crucial upgrades like the Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805503 A4638805603, don’t settle for anything less.
Moreover, OEM mudguard widening kits ensure precise fitment, Like New finish, and uncompromising protection—so your G-class always looks and feels its powerful best.
Ready to protect your investment and elevate your driving experience? Shop for certified OEM G-63 body panels, electronics, engine upgrades, and trim at Dourado Auto Service. For more information, browse their exclusive product listings and enjoy same-day shipment within the UAE.


