2025 John Deere 644 G-Tier Base

2025 John Deere 644 G-Tier

• Net Power: 169 kW (227 hp) at 1,800 rpm

• Operating Weight: 17 934–18 205 kg (39,537–40,135 lb.)

• Bucket Capacity: 3.1–3.2 m3 (4.00–4.25 cu. yd.)

Features may include:

The cab on the 644 G was designed to provide different levels of comfort to operators, depending on the machine application. It is also set up to ensure that operation of the machine is straightforward with easy-to-access machine settings and features.

• Floor storage area on the left side of the seat means storing lunch boxes or personal items is easy and out of the way of foot pedals or controls.

• Joystick controls, foot pedals, and sealed-switch module have all been ergonomically placed to ensure maximum comfort.

• A high-definition and adjustable monitor includes built-in abilities to view diagnostic trouble codes.

The 644 G is backed by John Deere’s world-class dealer network that provides warranty support and maintenance and has the parts on the shelf needed to allow maximum uptime. Attributes related to servicing and supporting the 644 G are no different than those experienced today on all other pieces of John Deere equipment.

• All daily service points including fuel fill are conveniently grouped on the left side of the machine at ground level for easy access.

• Hinged doors provide wide-open access to the engine, the cooling system, and other components.

• John Deere Connected Support™, JDLink™, Service ADVISOR™ Remote, and Expert Alerts are all tools that enable sharing of real- time machine data and alerts so fleet managers and dealers can view codes and data before dispatching a technician to a jobsite, which increases uptime and lowers costs.

Built on over 50 years of experience producing and supporting wheel loaders, the 644 G features a high commonality of components found in other John loaders that are designed and tested to meet John Deere standards including the engine, transmission, and axles.

• The John Deere PowerTech 6.8-L (415-cu in.) engine is designed to improve cooling and provide high cylinder and piston ring durability.

• John Deere Teammate V axles contain pressure-lubed input bearings and brake discs that enhance cooling and extend component life, which helps lower total cost of ownership.

• Extended service intervals lower the cost of maintenance over the entire life of the machine.

• Auto Idle and Auto Shutdown reduce engine speed or turn the off completely after a period of inactivity to save fuel and warranty hours.

The 644 G controls were designed with operators of all skill sets in mind. The simple setup and functionality mean you can start putting the machine to work quicker and easier.

• Pilot controls on the 644 G are intuitive to operate and are familiar to both novice and experienced operators.

• Automatic shifting of the transmission occurs on the fly to enhance ease of operation

• In-cab adjustable boom height kickout, return to carry, and return-to-dig can be easily activated from the convenient sealed switch module (SSM), speeding production in repetitive applications.