Dongfeng VL Rear airway assembly 1109040-T38H0 in stocked

Designed to maximize air delivery to the engine, this rear airway features a smooth, turbulence-free internal structure with carefully calibrated diameter transitions and gradual bends. The internal surface is polished to a low-friction finish, minimizing air resistance and allowing a steady, high-volume airflow—critical for improving combustion efficiency, especially during high-load operation (e.g., heavy hauling or acceleration). The airway’s length and volume are also tuned to match the Dongfeng VL’s engine displacement and intake system requirements, reducing intake pulse interference and enhancing low-end torque—beneficial for both fuel economy and driving responsiveness. Additionally, the airway’s rear-mounted position (aligned with the vehicle’s aerodynamic flow) helps capture cooler, denser outside air (rather than hot under-hood air), further boosting engine power output by up to 5-8% compared to poorly designed airways

The assembly is crafted from high-grade glass fiber-reinforced nylon (PA66+GF30), a material renowned for its exceptional mechanical strength, heat resistance, and chemical stability. It can withstand continuous exposure to under-hood temperatures (up to 150°C) without warping, cracking, or deforming—preventing airflow restriction caused by material degradation over time. The material also exhibits strong resistance to automotive fluids (e.g., engine oil, coolant, and fuel vapors) and environmental contaminants (e.g., dust, dirt, and road salt), ensuring long-term structural integrity. The airway’s wall thickness is optimized to balance lightweight performance (reducing overall vehicle weight for better fuel efficiency) and impact resistance, withstanding minor impacts (e.g., from tool bumps during maintenance) without damage

To maintain precise air-fuel ratios (critical for engine performance, emissions control, and fuel economy), this rear airway assembly features multi-layered sealing mechanisms at all connection points. It includes pre-installed, high-temperature-resistant EPDM (ethylene propylene diene monomer) rubber gaskets that form a tight, airtight seal between the airway and the air filter housing/intake manifold—preventing unfiltered air from entering the engine (which causes carbon buildup, premature wear, and increased emissions) and avoiding calibrated airflow loss (which reduces power and wastes fuel). The connection flanges are precision-machined to ensure flat, even contact with mating components, while integrated hose clamps (where applicable) provide secure, adjustable fastening to maintain seal integrity over time—even under engine vibration or temperature fluctuations (-40°C to 150°C)

Engineered for efficient replacement, this rear airway assembly comes as a fully integrated unit with all necessary mounting hardware (brackets, clips, clamps) and pre-drilled holes that align with the Dongfeng VL’s factory mounting points. Installation requires no specialized tools—simply disconnect the old airway from the air filter housing and intake manifold, remove its mounting brackets, then secure the new assembly using the provided hardware. The entire process takes 20-30 minutes (suitable for both professional mechanics and experienced DIY users). The airway also retains full compatibility with the vehicle’s original intake system components, including mass airflow sensors (MAF) and intake air temperature (IAT) sensors—with pre-positioned ports that match the sensor locations. This ensures the engine control unit (ECU) receives accurate airflow and temperature data, maintaining optimal engine performance and emissions compliance immediately after installation