John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight

John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight

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John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
  • John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight
John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight

John Deere 644 X-Tier Mid-Size Wheel Loader 231 hp 41,571 lb Operating Weight

$0.00 USD
$0.00 USD

The John Deere 644 X-Tier mid-size wheel loader combines innovative E-Drive technology with robust power to deliver exceptional productivity and fuel efficiency. Its electric drive system dynamically adjusts engine speed to match load requirements, providing faster acceleration and up to 15 percent less fuel consumption than competitors in the next size class up.

Operators benefit from a redesigned cab with added leg room, dual tilt steering, and an upgraded HVAC system for all-day comfort. Advanced features like SmartWeigh™ payload weighing, Auto Level parallelism, and customizable electrohydraulic controls ensure precise, efficient material handling across any jobsite application.

Key Features

Brand John Deere
Model 644 X-Tier
Product Type Mid-Size Wheel Loader
Engine Manufacturer John Deere
Engine Model PowerTech PSS 6068
Emission Rating EPA Tier 4 / EU Stage V
Displacement 415 cu in (6.8 L)
Rated Speed 1500 rpm
Engine Output - Net 231 hp (172 kW)
Torque 808 lbf/ft (1095 Nm)
Transmission Type Powershift with Hybrid-Electric Drive
Front Differential Type Locking
Rear Differential Type Open
Tire Size - Standard 23.5 R25
Service Brake - Type Wet Disc
Service Brake - Actuation Hydraulic
Parking Brake - Type Wet Multi Disc
Height - Over Cab 11 ft 4 in (3450 mm)
Wheelbase 10 ft 10 in (3310 mm)
Ground Clearance 15.2 in (386 mm)
Width Over Tires - Standard 9 ft 5 in (2875 mm)
Height - Pivot Pin 13 ft 5 in (4090 mm)
Reach - At 45° Dump 5 ft 3 in (1610 mm)
Fuel Tank Capacity 92.6 gal (350 L)
Hydraulic Tank Capacity 27.3 gal (103.4 L)
Heaped Bucket Capacity 4.25 cu yd (3.2 m³)
Breakout Force - Bucket 34,334 lbf (15,574 kgf)
Ride Control System Optional
Pump Type Piston
Pump Flow 70 gpm (265 L/min)
System Pressure 3650 PSI (251.66 bar)
Operating Weight 41,571 lb (18,856 kg)

Highlights

  • Net Power: 172 kW (231 hp) at 1,500 rpm
  • Operating Weight: 18 856–18 892 kg (41,571–41,649 lb.)
  • Bucket Capacity: 3.1–3.6 m3 (4.0–4.75 cu. yd.)

Compatibility

The 644 X-Tier is compatible with a wide range of John Deere attachments including general purpose buckets, light material buckets, and forks. The electrohydraulic system supports up to 10 stored attachment configurations with customizable flow and responsiveness settings. Optional SmartDetect™ and SmartWeigh™ systems can be added as factory options or field kits.

How to use

Operate the 644 X-Tier using the electrohydraulic joystick controls, which can be customized through the in-cab monitor. Select between Normal Mode for automatic engine speed adjustment or Productivity Mode for constant high RPM during demanding tasks. Enable Coast Control for dynamic braking and use Rimpull Control to limit wheel torque in soft or slippery conditions. The Auto Level feature maintains attachment angle within ±2 degrees throughout the boom cycle for precise load handling.

What's included

  • John Deere 644 X-Tier Mid-Size Wheel Loader base machine
  • Standard 23.5 R25 tires
  • Operator manual and documentation

Frequently asked questions

What is the net engine power of the John Deere 644 X-Tier?

The John Deere 644 X-Tier delivers a net engine power of 231 hp (172 kW) at 1,500 rpm.

How does the E-Drive system improve fuel efficiency?

The E-Drive system uses a brushless electric generator and motor to dynamically adjust engine speed to match tractive and hydraulic loads. This allows the 644 X-Tier to average a 10 to 13 percent fuel efficiency advantage over competitors while maintaining similar or higher productivity.

What is the operating weight of the 644 X-Tier?

The operating weight of the John Deere 644 X-Tier ranges from 41,571 to 41,649 lb (18,856 to 18,892 kg), depending on configuration.

What payload weighing technology is available on this loader?

The 644 X-Tier can be equipped with SmartWeigh™, a John Deere designed payload weighing solution that provides dynamic weighing with ±1.5 percent accuracy. It integrates with JDLink™ for remote data access and offers a 250-hour trial period.

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