DEF Filter for 2011-2019 Mack CXU & More - Dorman 904-7938

Help keep debris out of the diesel exhaust fluid system at fill-up with the Dorman - HD Solutions Diesel Exhaust Fluid (DEF) Filler Neck Filter, part number 904-7938. Mounted in the DEF tank filler neck, this filter is designed to screen contaminants from the fluid as it is poured into the tank. It fits many Mack and Volvo trucks, among them the 2011-2019 Mack CXU, 2011-2019 Volvo VNL and 2018-2019 Volvo VNR. See the "Vehicles it fits" section for the full list.

• Direct replacement: Built as a direct replacement for the listed applications and intended to fit and work like the original filter.
• For clogged filters: A replacement choice when the original filler neck filter has clogged and no longer does its job.
• Durable construction: Made from quality materials and engineered for durability and dependable performance.
• Trustworthy quality: Supported by a team of Dorman product experts in the United States and more than a century of automotive experience.

Slow DEF filling or fluid backing up at the filler neck can be signs that this filter may need replacing. Other issues can cause the same symptoms, so inspect the filter first. If a clogged filter is the cause, 904-7938 replaces it.

Interchange: 82269261