Caterpillar Equipment

The Caterpillar 797F is one of the most powerful and heavy-duty mining dump trucks in Cat’s line - built for massive open-pit operations. It’s driven by a Cat C175-20 engine, which delivers 4000 hp (about 2983 kW). This beast isn’t just about raw power - it’s engineered to haul colossal loads. Its nominal rated payload is 400 U.S. tons (about 363 metric tonnes), making it a workhorse in high-capacity haul cycles. In terms of its own mass, the 797F’s operating weight (when empty) is roughly 1,375,000 pounds (623,690 kg). The body (the dump bed) itself weighs around 43,000 kg, meaning the chassis and heavy-duty structure are built to take not just the payload but the stresses of constant heavy hauling. Engine Details Engine Cat C175-20 Tier 2 Cat C175-20 Tier 4F Number of Cylinders 20 20 Displacement 6469 cu in (106 L) 6469 cu in (106 L) Bore 6.9 in (175 mm) 6.9 in (175 mm) Stroke 8.7 in (220 mm) 8.7 in (220 mm) Gross Power 4000 hp (2983 kw) 4000 hp (2983 kw) Net Power 3795 hp ...