Dongfeng GX Underdrum insulation pad assembly 5110020-C6100

Beyond heat insulation, this assembly excels at noise reduction, addressing the high levels of mechanical and exhaust noise common in commercial vehicles like the Dongfeng GX. The ceramic fiber and glass fiber layers have excellent sound absorption coefficients (0.6-0.8 at 500-2000 Hz, the frequency range of most underdrum noise), absorbing and dampening vibrations and sound waves generated by the exhaust system or brake drum operation. Field tests show that the insulation pad reduces cab interior noise by 8-12 dB—transforming a noisy 85 dB environment (typical for uninsulated underdrums) to a more comfortable 73-77 dB, which aligns with international commercial vehicle noise comfort standards. This not only improves driver comfort during long-haul trips but also reduces fatigue, enhancing overall driving safety

The 5110020-C6100 insulation pad is constructed with industrial-grade, weather-resistant materials to endure the harsh under-vehicle environment. The aluminum foil top layer is corrosion-resistant (passing 500-hour salt spray tests) and resistant to tearing or puncturing from road debris. The ceramic fiber blanket is non-combustible (meeting UL94 V-0 fire safety standards) and maintains its insulation properties even after prolonged exposure to high temperatures (up to 600°C for short periods). The glass fiber mat is treated with a water-repellent coating, preventing moisture absorption (which would degrade insulation performance) and mold growth in humid conditions. Additionally, all materials are resistant to oil, grease, and road chemicals, ensuring the pad retains its structure and functionality for over 5 years or 300,000 kilometers of use—far exceeding the lifespan of standard insulation pads

Exclusively designed for Dongfeng GX commercial vehicles (including heavy-duty trucks and cargo models), this insulation pad assembly strictly follows the original equipment (OE) specifications of part number 5110020-C6100. It is manufactured using 3D scanning of the Dongfeng GX underdrum area, ensuring a precise fit with every contour—including cutouts for exhaust pipes, brake lines, and mounting brackets. The pad’s dimensions (length: 850mm, width: 600mm, total thickness: 18mm) perfectly match the underdrum space, eliminating gaps that would compromise insulation or noise reduction. It is fully compatible with all Dongfeng GX models produced since 2020, making it a direct replacement part for factory assembly or after-sales maintenance—no trimming or modification is required, saving installation time

The 5110020-C6100 insulation pad assembly is designed for hassle-free installation and environmental safety. It comes with pre-applied high-temperature adhesive tape (capable of withstanding 250°C) and metal mounting clips, allowing technicians to attach it to the underdrum surface in 20-30 minutes—no special tools or drilling are needed. The adhesive maintains strong bonding even under temperature fluctuations, preventing the pad from shifting during driving. From an environmental perspective, all materials (aluminum foil, ceramic fiber, glass fiber) are RoHS-compliant, free of hazardous substances such as lead, mercury, and formaldehyde. The assembly also meets China’s automotive environmental standards (GB/T 30512-2014) and the EU’s REACH regulation, ensuring it is safe for both workers during installation and the environment at the end of its lifespan. Additionally, the pad is lightweight (only 1.2kg), adding minimal weight to the vehicle and avoiding any negative impact on fuel efficiency