The John Deere 495D is a mid-size hydraulic excavator designed for versatility and robust performance in various construction and excavation applications. It features a 300 series engine with a displacement of 276 cubic inches (4.5 liters), delivering a gross power output of 100 hp (75 kW) and a net power of 95 hp (71 kW) measured at 2100 rpm. The engine produces a maximum torque of 284 lb-ft at 1300 rpm, ensuring strong digging and lifting capabilities. The machine operates on a 24-volt system and is equipped with a 42-amp alternator. In terms of hydraulics, the excavator boasts a hydraulic pump flow capacity of 18 gallons per minute and a hydraulic system fluid capacity of 19 gallons, with a relief valve pressure set at 4050 psi, allowing precise and powerful operation of attachments. The swing mechanism provides a swing speed of 25 rpm with a swing drive fluid capacity of 0.9 gallons, contributing to smooth rotational movement. The 495D has an operating weight of approximately 26,184 lbs (11,877 kg) and a width to the outside of tracks measuring 9.5 feet, balancing stability with maneuverability on job sites. Cooling and lubrication systems include a 5.6-gallon cooling fluid capacity and a 3.8-gallon engine oil capacity. Its fuel tank holds 66 gallons, enabling extended operation. This excavator is engineered for durability and efficiency, featuring enhanced hydraulics and a reliable engine platform suitable for demanding environments. Its specifications make it a strong contender in the mid-size excavator category, capable of handling diverse tasks with power and precision.