This Universal DEF Diesel Exhaust Fluid Pump is designed for 24V heavy-duty truck systems, offering seamless compatibility with multiple OEM reference numbers (e.g., A0001400278, A0001402578, A0001400378). Crafted from high-grade corrosion-resistant materials, it ensures durability and reliable performance in demanding conditions. The pump delivers precise DEF dosing to optimize emissions control, effectively converting pollutants into nitrogen and water vapor for compliance with environmental standards. Its user-replaceable core simplifies maintenance, reducing downtime and operational costs.