This air spring assembly OE 2918020-H04B2 is manufactured strictly to Dongfeng GX&KX original design specifications, adopting a precision-machined aluminum alloy top cover that provides high rigidity and heat dissipation, while the main body is crafted from high-grade multi-layer rubber bellows with excellent flexibility and fatigue resistance. The product features an integrated high-precision air valve that allows quick inflation and deflation, enabling adjustable suspension height to adapt to different load conditions. The seamless bonding of metal and rubber components eliminates delamination risks, ensuring long-term durability. It adopts a 1:1 original dimensional design, with precise mounting flanges and interface tolerances that perfectly match the truck’s chassis and axle, ensuring a secure, vibration-free fit. This robust design combines high load capacity and flexible damping, making it the ideal OEM replacement for Dongfeng GX&KX heavy-duty trucks.