We usually associate twelve-cylinder engines with high-end cars and the occasional SUV like the Audi Q7 V12 TDI, Rolls-Royce Cullinan, or the Bentley Bentayga. However, these powerful engines have a long history of serving a utilitarian purpose at work sites, such as the Detroit Diesel Series 71, a two-stroke engine available in both inline and V configurations.

Left to rot for many years, a rusty abandoned dump truck features the V12 variant with a 14-liter displacement and about 425 horsepower. The 12V-71 was offered with varying outputs between 394 hp to 525 hp. A nearly hour-long video showcases the revival of this massive 852-cubic-inch engine, which at one time hauled heavy loads at a quarry in Queensland, Australia. The dump truck, sadly, was left for dead to make way for newer, more advanced big rigs.

The Detroit Diesel Series 71 used a gear-driven Roots blower, though it was technically called a naturally aspirated engine by the Society of Automotive Engineers (SAE). After being dormant and exposed to the elements, the dump truck had a rust hole in the intake. With the addition of fresh diesel, a fuel injector cleaner, and WD-40, along with the installation of a pair of batteries, the V12 engine roars again in the video.

If you want to jump to the best part of the video, that V12 roars again from the 54:20 mark.