The John Deere DEF Line – Pressure AT442341 is engineered to ensure reliable and consistent delivery of Diesel Exhaust Fluid within your equipment’s emissions system. Built to handle high-pressure demands, this line maintains proper flow rates and minimizes the risk of leaks or blockages that could disrupt system performance. Made from durable, chemical-resistant materials, it’s designed to withstand the corrosive nature of DEF and the challenging conditions found in agricultural and industrial environments. Whether you’re replacing a damaged line or performing scheduled maintenance, the AT442341 supports optimal SCR (Selective Catalytic Reduction) function, helping your machine meet emissions standards while running efficiently. The line installs easily with a secure fit on compatible John Deere models, keeping your machine in compliance and reducing downtime. Available through Doggett John Deere, this DEF pressure line ships quickly and is backed by expert support to ensure the right fit and long-term system reliability.








