This diesel exhaust fluid (DEF) filler neck matches the fit of an original filler neck that is leaking or has failed, and is designed to help ensure the reliable and secure transfer of DEF from the fill point to the DEF tank on specified vehicles.

• Direct replacement - this diesel exhaust fluid (DEF) filler neck matches the fit of an original filler neck on specified vehicles vehicle years, makes and models
• Ideal solution - engineered to replace an original neck that is leaking or has failed, to help ensure the reliable and secure transfer of DEF from the fill point to the DEF tank on specified vehicles
• Durable construction - designed, manufactured and tested to strict specifications for reliable service
• Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience