The John Deere 290D is a versatile hydraulic excavator equipped with a robust 4239D engine with a displacement of 239 cubic inches, delivering a gross power of 68 hp (51 kW) and net power of 65 hp (48 kW) at 2100 rpm, with a maximum torque of 343 lb-ft at 1500 rpm. It features two boom/stick configurations: Option 1 offers a maximum cutting height of 25.5 ft, digging depth of 15.1 ft, loading height of 17.8 ft, and a reach along the ground of 22.7 ft; Option 2 extends these capabilities slightly with a 26 ft cutting height, 16.9 ft digging depth, 18.3 ft loading height, and 24 ft reach. The machine supports a bucket with a reference capacity of 0.4 cubic yards. Dimensionally, the unit has a ground clearance of 1.7 ft, top cab height of 8.6 ft, track length on the ground of 8.4 ft, width outside the tracks of 7.8 ft, and a shipping length of 22.6 ft, facilitating ease of transport. The operating weight is approximately 20,742 lbs. The hydraulic system operates at a relief valve pressure of 3,980 psi with a pump flow capacity of 29.1 gpm and a fluid capacity of 29 gallons. The swing mechanism enables a speed of 14.9 rpm and a swing drive fluid capacity of 0.9 gallons. The undercarriage includes 43 shoes per side, 6 track rollers, 1 carrier roller per side, with 20-inch shoe size, a track gauge of 6.1 ft, providing a drawbar pull of 13,670 lbs and ground pressure of 4.9 psi. Maximum travel speed reaches 2.6 mph. The excavator runs on a 24-volt electrical system supported by a 42-amp alternator. This configuration makes the John Deere 290D a durable and efficient machine for medium-duty excavation tasks.