Introduction
The Mercedes AMG G-63 commands fierce loyalty among luxury SUV enthusiasts. However, equipping it with genuine parts like the Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805703 A4638805803, Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Silver OEM A4638805703 A4638805803, Mercedes AMG G-63 Front Lower Bumper Gloss White, and Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Red OEM A4638805503 A4638805603 ensures it retains that iconic G-Class allure.
Meanwhile, choosing OEM over aftermarket parts not only enhances performance but also safeguards your investment. In this comprehensive guide, you’ll discover expert insights on the exclusive advantages of sticking with original factory components.
Why OEM Parts Matter for the Mercedes AMG G-63
You drive the AMG G-63 for its power, prestige, and precision engineering. Therefore, fitting only genuine parts preserves these attributes in every way.
For example, genuine parts like the Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805703 A4638805803 mirror the standards set by Mercedes themselves.
Meanwhile, installing factory-original mudguard widenings and lower bumpers protects the vehicle’s warranty and delivers accuracy in fitment that imitation pieces simply cannot guarantee.
Advantages of OEM Components
- Assured fitment and compatibility
- Retention of manufacturer warranty
- Strict engineering and material criteria
- Original visual and tactile finish
- Guaranteed resale value protection
In contrast to aftermarket parts, OEM ensures your G-63 remains authentic, exclusive, and unmatched in reliability.
Key OEM Parts Categories and Specifications
Let’s delve into these must-have original finish parts for your Mercedes G-63, explaining their direct impact.
Rear LH & RH Wheel Thread Mudguard Widening (Gloss Black/Silver/Red)
The Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805703 A4638805803 adds brawny stance to the rear, with stunning gloss black that perfectly matches AMG factory paintwork.
However, if your style favors a lighter flair, the Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Silver OEM A4638805703 A4638805803 projects sophistication and pairs seamlessly with other exterior trim.
Similarly, for drivers preferring a bold, sporty accent up front, the Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Red OEM A4638805503 A4638805603 offers a touch of performance flair that stands out against the traditional G-63 palette.
These mudguard widenings do more than enhance style; they prevent debris and road grime from damaging your body panels, preserving the pristine factory look.
Front Lower Bumper (Gloss White)
The Mercedes AMG G-63 Front Lower Bumper Gloss White is offered in a brilliant gloss finish. Thus, it flawlessly integrates with the G-63’s exclusive AMG aerodynamic package for improved airflow and protection.
Moreover, its robust ABS/PC blend ensures optimal impact resistance—an OEM engineering hallmark—while aftermarket alternatives often compromise on material quality.
Compatibility, Finish, and Engineering Quality
- Every original mudguard widening listed carries the certified OEM part numbers for precise fitment on 2018+ Mercedes AMG G-63 models.
- The hardware and mounting points match Mercedes’ exacting standards, so installation is pain-free with zero gaps or misalignments.
- Meanwhile, the paints and coatings are developed to resist UV, chips, and fading under UAE’s intense climate.
- All components maintain seamless lines, supporting the structural rigidity of the wheel arches and lower fascia.
OEM vs Aftermarket: Why Original Wins
Meanwhile, drivers often ask if aftermarket mudguards or bumpers will suffice. While some aftermarket parts may look convincing at first glance, subtle differences can impact your driving experience and long-term value.
For example, a genuine Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805703 A4638805803 features a paint code and texture that authentically matches the body, whereas aftermarket items may be slightly off in shade or finish and use inferior plastics prone to warping or discoloring.
Furthermore, installing non-OEM parts can inadvertently void your Mercedes warranty or reduce your SUV’s resale price. Therefore, AMG purists—and future buyers—demand that unmistakable, exclusive original finish.
In contrast, OEMs undergo extensive crash-safety and weather-resistance testing which generic suppliers skip.
Realistically, if your AMG G-63 must project perfection and preserve its collectible status, sticking with OEM parts isn’t just advisable—it’s essential.
Installation Tips and Maintenance Best Practices
You don’t need to be a master tech to install a genuine mudguard or bumper, but following a few crucial steps elevates the result.
First, inspect the part numbers (like A4638805703, A4638805803, A4638805503, and A4638805603) to match your VIN or model year.
Next, always clean the mounting surfaces thoroughly before fitting any component, ensuring maximum adhesion and zero contamination.
For a quick visual overview, see this external resource.

Moreover, use all provided OEM fasteners and avoid repurposing old clips or screws. This will prevent squeaks, rattles, or vibration issues common with subpar hardware.
Once installed, check the alignment and ensure even gaps with existing body panels. Thus, this reinforces both function and aesthetics.
Finally, regularly clean your mudguards and bumpers using pH-neutral soaps, especially after off-roading, to keep the gloss finish fresh and prevent long-term damage from sand or salt exposure.
Where to Buy Genuine Mercedes AMG G-63 Parts in the UAE
Sourcing genuine exclusive finish components for your G-63 in the UAE is straightforward with the right supplier.
Dourado Auto Service offers fast shipping on all these OEM parts and more, including:
- Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805703 A4638805803
- Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Silver OEM A4638805703 A4638805803
- Mercedes AMG G-63 Front Lower Bumper Gloss White
- Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Red OEM A4638805503 A4638805603
Similarly, you can browse the latest inventory of OEM Mercedes and AMG parts on our stock listings and check for related exclusive offers.
Meanwhile, if unsure about which part suits your model year or spec, their expert advisors will verify compatibility and offer guidance.
Conclusion and Call to Action
For maximum enjoyment and enduring value from your AMG G-63, insist on genuine Mercedes parts only.
Each original component such as the Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Black OEM A4638805703 A4638805803, Mercedes AMG G-63 Rear LH & RH Wheel Thread Mudguard Widening Gloss Silver OEM A4638805703 A4638805803, Mercedes AMG G-63 Front Lower Bumper Gloss White, and Mercedes AMG G-63 Front LH & RH Wheel Thread Mudguard Widening Gloss Red OEM A4638805503 A4638805603 lets you savor AMG engineering to the fullest—no shortcuts, no compromises.
Consequently, protect your super SUV’s value and signature presence with exclusive, fast-shipped, original finish OEM body panels—trust nothing less.
Explore Dourado’s product catalog now and secure next-day delivery anywhere in the UAE for your pride and joy.


