Diesel Brothers is an American reality television series. The series premiered on January 4, 2016, on Discovery Channel. The program follows a group of friends in Utah who repair and customize pickup trucks.

Despite the name and physical resemblance to one another, the Diesel Brothers are not actually brothers. Friends David "Heavy D" Sparks and David "Diesel Dave" Kiley started a fix-it shop for all types of vehicles and brought in two other men as shop helpers. They posted various videos on YouTube, one of which led to an appearance on The Tonight Show With Jay Leno. Subsequently the Discovery Channel contacted the Diesel Brothers.On November 15, 2019, the series was renewed for a sixth season which premiered on December 9, 2019.On July 16, 2020, it was announced that a three-hour TV special titled Diesel Brothers: Monster Jam Breaking World Records will premiere on August 8, 2020.