Part of the fullsize pickup truck segment, the 2018 GMC Sierra 3500HD Diesel Crew Cab competes with the RAM 3500 Diesel Crew Cab, the Chevrolet Silverado 3500HD Diesel Crew Cab, and the Ford F-350 Super Duty Diesel Crew Cab. A base price of MSRP of $49,995 gets you a 6.6L Turbo Diesel V8 engine and a 6-speed automatic transmission. Despite the price going up to $65,795, this single powertrain is found in all 4 trims. This engine produces 445 horsepower and 910 lb-ft of torque, achieving a 0-60 of 7.3 seconds, and is offered as both RWD and 4WD. The Sierra 3500HD Diesel Crew Cab offers a 6.6 feet or 8.2 feet cargo bed, with 3,927 pounds and 5,281 pounds of payload capacity respectively. It offers a healthy towing capacity of 20,000 pounds.