21839987
DEF Fluid Tank Assembly
Mack

The DEF (Diesel Exhaust Fluid) tank assembly is a vital part of the emissions control system in modern heavy-duty trucks. It stores and supplies DEF to the SCR (Selective Catalytic Reduction) system, helping to reduce nitrogen oxide emissions and ensure compliance with environmental regulations. Constructed from corrosion-resistant materials, this tank is designed for durability and long-term service in demanding conditions. Proper maintenance and timely refilling are essential for optimal emissions performance and engine efficiency. Source One Parts Center offers this high-quality DEF tank assembly, engineered to meet or exceed OEM standards. Maintaining a reliable DEF system is crucial for environmentally responsible operation and avoiding emission-related penalties.