Dorman 904-5401CD Heavy Duty DEF Cap Compatible with Select Kenworth / Peterbilt Models

This diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Kenworth C500: 2010, 2011, 2012, 2013, 2014, 2015, 2016] - [Kenworth T2000: 2010, 2011] - [Kenworth T660: 2010, 2011, 2012, 2013, 2014, 2015, 2016] - [Kenworth T680: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021] - [Kenworth T800: 2010] - [Kenworth W900: 2010, 2011, 2012] - [Peterbilt 210: 2010, 2011, 2012, 2013, 2014, 2015] - [Peterbilt 320: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018] - [Peterbilt 330: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021] - [Peterbilt 335: 2010] - [Peterbilt 337: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022] - [Peterbilt 362: 2010] - [Peterbilt 365: 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022] - [Peterbilt 384: 2010, 2011, 2012, 2013, 2014, 2015, 2016] - [Peterbilt 387: 2010, 2011] - [Peterbilt 388: 2010]

• Direct replacement - this diesel exhaust fluid (DEF) filler cap is designed to match the fit and function of the original cap on specified vehicles
• Restores functionality - reliable replacement for an original cap that is leaking or failed due to wear
• Durable construction - this part is made from quality materials to ensure reliable performance and long service life
• Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience
• Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the "i" to verify fitment notes match your vehicle.