Download our brochure for more information on Luber-finer’s line of UREA/DEF filters. The availability of urea itself hasnt emerged as a primary hurdle in widespread DEF distribution, rather its a logjam of labor issues and railroad capacity that looms as the potential principal. Diesel Exhaust Fluid is a nontoxic solution of 67.5 purified water and 32.5 ultra pure automotive grade urea. ![]() Luber-finer filters are designed to meet OE performance specs for flow rate, filter rating, initial differential pressure, capacity and final filtration efficiency. Diesel Exhaust Fluid (DEF) is one of the key elements of the Selective Catalytic Reduction (SCR) process used by Diesel Engine builders to meet EPA 2010 regulations. ![]() Several factors have contributed to the rise in urea costs. To prevent these problems from occurring, UREA/DEF filters must be replaced every year or between 120-150,000 miles. Currently, urea costs are at their highest since August 2014, when prices reached 358.33 a ton. Symptoms of clogged UREA/DEF filters include: If the DEF is not filtered properly, UREA crystals and other contaminants can cause the SCR system to malfunction. ![]() These filters are designed to filter diesel exhaust fluid in order to maintain a properly functioning SCR (selective catalytic reduction) system, in keeping with regulatory standards for emissions control for all heavy-duty truck engines produced after January 1, 2010. That’s possibly because these filters are still relatively new and there hasn’t been much education on the subject. Diesel exhaust fluid (also referred to as DEF or AUS 32) is injected into the diesel exhaust stream and the heat from the exhaust, the fluid, and a catalyst convert the NOx into the harmless gases. For one reason or another, not everyone in the trucking industry is fully aware of the importance of UREA/DEF fluid filter replacement (including some mechanics).
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