John Deere Construction 644l Wheel Loader Specs (2020-2021)

The John Deere Construction 644l Wheel Loader (2020-2021) brings together typical weight at 41,248 lb (18.7 t) and below-average maximum bucket capacity at 4.32 yd³ (3.3 m³). Another useful figure is minimum bucket capacity at 3.53 yd³ (2.7 m³).
Specification profile

Wheel Loader • 2020-2021

Weight: 41,248 lb (18.7 t)Maximum bucket capacity: 4.32 yd³ (3.3 m³)Minimum bucket capacity: 3.53 yd³ (2.7 m³)Travel speed: 24.9 mph (40 km/h)
41,248 lb (18.7 t)Weight
4.32 yd³ (3.3 m³)Maximum bucket capacity
3.53 yd³ (2.7 m³)Minimum bucket capacity
24.9 mph (40 km/h)Travel speed
9.42 ft (2.87 m)Transport width
9.97 ft (3.04 m)Bucket width
11.3 ft (3.45 m)Transport height
9.42 ft (2.87 m)Maximum discharge height
How it compares

Low, average or high?

Weight

Average

41,248 lb (18.7 t)
Low 7,419 lb (3.37 t)Typical 43,268 lb (19.6 t)High 210,541 lb (95.5 t)

Weight is close to the typical figure.

Maximum bucket capacity

Below average

4.32 yd³ (3.3 m³)
Low 1.05 yd³ (0.8 m³)Typical 5.37 yd³ (4.11 m³)High 17 yd³ (13 m³)

Maximum bucket capacity is below the typical figure.

Minimum bucket capacity

Average

3.53 yd³ (2.7 m³)
Low 0.78 yd³ (0.6 m³)Typical 3.71 yd³ (2.84 m³)High 12.4 yd³ (9.5 m³)

Minimum bucket capacity is close to the typical figure.

Travel speed

Above average

24.9 mph (40 km/h)
Low 12 mph (19.3 km/h)Typical 21.4 mph (34.4 km/h)High 26.7 mph (43 km/h)

Travel speed is above the typical figure.

Transport width

Above average

9.42 ft (2.87 m)
Low 5.25 ft (1.6 m)Typical 8.71 ft (2.65 m)High 15.8 ft (4.81 m)

Transport width is above the typical figure.

Transport height

Average

11.3 ft (3.45 m)
Low 7.71 ft (2.35 m)Typical 11.1 ft (3.38 m)High 18.4 ft (5.6 m)

Transport height is close to the typical figure.

Visual overview

Key measurements

Capacity

Published capacity figures shown together for quick comparison.

Maximum bucket capacity4.32 yd³ (3.3 m³)
Minimum bucket capacity3.53 yd³ (2.7 m³)

Working dimensions

Useful working and clearance measurements shown side by side.

Outside turning radius18.3 ft (5.57 m)
Bucket width9.97 ft (3.04 m)
Maximum discharge height9.42 ft (2.87 m)

Overall size

The main published dimensions shown together at a glance.

Transport length27.3 ft (8.33 m)
Transport height11.3 ft (3.45 m)
Transport width9.42 ft (2.87 m)
Equipment

Features & equipment

Published equipment and feature availability for this model.

Air conditioningYES
Diesel particulate filterNO
Hydraulic quick hitchNO
Mechanical quick hitchNO
Swing loaderNO
TelescopicNO
Overview

Model information

Manufacturer John Deere Construction
Model 644l
Category Wheel Loader
Model year / production 2020-2021
Full specifications

Technical details

Performance

Travel speed24.9 mph (40 km/h)

Dimensions

Bucket width9.97 ft (3.04 m)
Maximum discharge height9.42 ft (2.87 m)
Transport height11.3 ft (3.45 m)
Transport length27.3 ft (8.33 m)
Transport width9.42 ft (2.87 m)
Outside turning radius18.3 ft (5.57 m)

Capacity & weight

Maximum bucket capacity4.32 yd³ (3.3 m³)
Minimum bucket capacity3.53 yd³ (2.7 m³)
Weight41,248 lb (18.7 t)
Swing loaderNo

Setup & fitment

Hydraulic quick hitchNo
Mechanical quick hitchNo
Standard tyres23.5 R25

Features

Air conditioningYes
Diesel particulate filterNo
TelescopicNo

Other specifications

Model seriesL
Steering modeAL