Dorman's Diesel Emissions Fluid Filler Cap effectively prevents diesel exhaust fluid from leaking or spilling through the filler neck. Integral for helping to keep pollutants out of the environment, replacement restores the diesel emissions fluid system to proper operation. Vehicle model years this part fits: Volvo VAH: 2011, 2012, 2013, 2014, 2015 Volvo VHD: 2010, 2011, 2012, 2013, 2014, 2015 Volvo VN: 2010, 2011, 2012, 2013, 2014 Volvo VNL: 2010, 2011, 2012, 2013, 2014, 2015, 2016 Volvo VNM: 2010, 2011, 2012, 2013, 2014, 2015, 2016 Volvo VT: 2010, 2011, 2012, 2013, 2014