John Deere 644X Wheel Loaders
John Deere 644X
Average price
$368,430
5+
sold in last year
General overview
John Deere 644X is a wheel loader designed for construction material handling and loading work. It is powered by a PowerTech PSS 6068 engine rated at 170 kW (231 hp) and has an operating weight of 18,856 kg (41,570 lb), giving it a substantial size class for earthmoving and site work. The model is produced in the United States and meets Stage V emission requirements.
The 644X is configured with a 3 m³ (3.9 cu yd) heaped bucket capacity and a 6-cylinder, 6 L engine. Its hydraulic system is rated at 251.7 bar (3,650 psi), and the machine has a wheelbase of 3,310 mm (10 ft 10 in) with an overall length with bucket of 8,260 mm (27 ft 1 in). These specifications support repeated loading cycles, material transport, and controlled dumping in construction environments.
Year
2023, 2024
Country of manufacturing
United States
General specifications
Dimensions
Length
Height
Width
8,260 mm
~325.2 in
3,450 mm
~135.8 in
2,875 mm
~113.2 in
Engine Power
231 hp
Operating Weight
18,856 kg
Bucket Capacity
3.2 cu(m)
Bucket Capacity - Heaped
3 cu(m)
Additional specifications
Emission standard level
Stage V
Displacement
6 cu(m)
Fuel tank
350 L
Height to top of cab
3,450 mm
Wheelbase
3,310 mm
Number of Cylinders
6
Ground clearance with standard tires
386 mm
Battery Voltage
24
Width
2,875 mm
System Relief Pressure
25,166 kPa
Engine Model
PowerTech PSS 6,068
Power - Net
231 hp
Net Power (ISO 9249)
231 hp
General Purpose
3 cu(m)
Overall Length - With Bucket
8,260 mm
Reach at Maximum Dump Height
1,610 mm
Hinge Pin at Maximum Height
4,090 mm
Turning Radius - Over Bucket
13,000 mm
Dump Angle at Maximum Height
45 deg
Hydraulic System
103 L
Rated Operating Capacity
6,422 kg
John Deere 644X Wheel Loaders Listings
$371,990
8260 mm
PowerTech PSS 6068
3 cu(m)
1135 hours
Sioux Falls, United States
Compare John Deere 644X Wheel Loader to other wheel loaders
Not sure which equipment to choose? Use our comparison tool to easily compare equipment side by side based on key features.
Add model
Add model
No reviews yet
Be the first to review this model.
Leave a review. Get a promo code
Leave a review and receive a promo code for your next purchase.
No questions yet
Be the first to ask a question about this model and help other buyers learn more.
Heavy equipment insights from JumboBee
October 5, 2026
How to Choose the Right Excavator Bucket: Types, Sizes, and Contractor Buying Guide
This guide covers excavator bucket types, capacities, compatibility, and how to choose the right bucket for your jobsite.
September 28, 2026
Mini Excavator Buying Guide 2026: Best Models, Sizes and How to Choose
This guide breaks down everything you need to know about compact earthmoving equipment.
September 21, 2026
Types of Forklifts: Complete Guide to Classes, Uses, and Applications
This guide covers official forklift classes, physical machine variations, and load capacities.
October 9, 2026
Motor Grader Buying Guide: Sizes, Top Brands, and What Contractors Should Look For
This guide helps buyers select the right motor grader for their needs and maximize ROI across construction, mining, and snow removal.
August 25, 2026
Repair, Rebuild or Replace Heavy Equipment: 2026 Cost-Based Decision Guide
This guide provides a mathematical approach to help you decide what to do with your aging machinery in 2026.
July 31, 2026
How to Inspect Used Heavy Equipment Remotely: Practical Checklist for International Buyers
This article provides a practical, step-by-step guide for evaluating machinery without physical access.
Got Questions?
Our FAQ section covers everything from shipping and listing to buying with confidence.
Can't find what you're looking for?
Sign up and talk to an expert.
Most popular
What is the average price of a John Deere 644X?
No confirmed market price is supplied for the John Deere 644X. Check current listings and compare machine condition, location, and configuration.
What are the key advantages of the John Deere 644X?
Listed specifications include 172.3 kW (231 hp) net power, a 3 m³ (3.92 cu yd) heaped bucket capacity, 18,856 kg (41,570 lb) operating weight, Stage V emissions, and a 350 L (92.5 US gal) fuel tank.
What type of engine does the 644X use?
The John Deere 644X uses a PowerTech PSS 6068 engine. The supplied specifications list 6 cylinders, 6 m³ (7.85 cu yd) displacement, and 172.3 kW (231 hp) net power.
How much horsepower does the 644X have?
The 644X has 172.3 kW (231 hp) engine power. Its net power and Net Power (ISO 9249) are also listed as 172.3 kW (231 hp).
What fuel does the John Deere 644X use?
The supplied specifications do not confirm the fuel type for the John Deere 644X. They list a fuel tank capacity of 350 L (92.5 US gal).
What jobs is this Wheel Loaders best suited for?
The supplied data does not specify intended job applications for the John Deere 644X. Its listed configuration includes a 3 m³ (3.92 cu yd) general-purpose bucket, but suitability should be confirmed against the material, site conditions, and required attachments.
What is the expected lifespan of the 644X?
The supplied data does not provide an expected service-life estimate for the John Deere 644X. Lifespan depends on operating conditions, maintenance records, inspections, and the condition of major components.
What should a buyer check when purchasing a used Wheel Loaders?
Check maintenance records, operating hours, engine condition, hydraulic leaks and performance, bucket and linkage wear, tires, brakes, steering, electrical systems, cab condition, and signs of structural damage. Test the machine under working conditions when possible.
