The STEYR 51447338 is an original equipment manufacturer (OEM) Diesel Exhaust Fluid (DEF) filter designed to maintain the integrity and purity of the DEF in agricultural and industrial machinery. This critical component prevents contaminants from entering the Selective Catalytic Reduction (SCR) system, safeguarding against damage and ensuring optimal emission control and engine performance. With a length of 110 mm and a diameter of 60 mm, this filter is a direct replacement for various STEYR, Case IH, and New Holland models.