About Us

In the rural landscapes of Fauquier County, Sean and Deanna, high school sweethearts, embarked on an adventure to change their lives forever. Their love story, born among the rolling hills and winding roads, became the spark for a journey filled with ambition, determination, and passion.

After attending Liberty High School together, Sean and Deanna got married and have spent 23 years building a life full of love, family, and entrepreneurship. With a BS in Business Management and over seven years of training in diesel aftertreatment system management, Sean set out together with Deanna to create Aftermarket DPF.

Their goal was clear: to bring something special to the diesel industry by combining meticulous care, innovative solutions, and a deep-rooted love for the field. Together, they have revitalized countless engines, offering truckers and businesses nationwide reliable transportation and renewed performance.

Along the way, Sean and Deanna faced numerous obstacles – from navigating business complexities to balancing family life – but their love and dedication fueled them through. Today, their vision has blossomed into a thriving company, serving customers nationwide and beyond. With their two sons, Logan and Zach, they continue to build a future grounded in passion, perseverance, and love.

Join us on this journey as we continue to revitalize the diesel industry, delivering exceptional service and performance to engines across the country – all powered by the enduring bond between Sean and Deanna.