Categories ↠ Wheel Loaders ↠ John Deere 644K

John Deere 644K Wheel Loader

Category: Wheel Loaders ➔
Manufacturer: John Deere ➔
Model: 644K ➔

John Deere 644K wheel loader is a mid-size articulated loader used in construction, aggregate handling, material loading, and site preparation. It is part of John Deere's K-Series and is designed for productivity, visibility, and operator comfort. Typical applications include truck loading, stockpile work, and general earthmoving. The 644K is commonly equipped with a diesel engine, powershift transmission, hydraulic lift and tilt functions, and a front-mounted loader bucket. Available attachments may include forks, grapples, and specialty buckets. The model is recognized for balanced performance, durability, and service access in demanding jobsite conditions.

See all John Deere 644Ks for sale

General Specifications

Bucket Capacity	4.0 - 4.25 (3.1 - 3.2) Starting 2019 Model Year
Engine Power	232 (173) Starting 2019 Model Year
Engine type	Deere PSX 6090 Starting 2019 Model Year
Max Dump Height	9.7 (2.9) Starting 2019 Model Year
Operating Weight	41,188 (18,682) Starting 2019 Model Year

Bucket

Breakout Force	33,903.00 lbs (15,378.16 kg)
Bucket Capacity - Smallest	4.10 cu yd (3.13 cu m)
Dump Clearance at Max Raise	9.50 ft (2.90 m)
Largest bucket capacity	4.20 cu yd (3.21 cu m)

Capacities

Heaped Capacity	4.20 cu yd (3.21 cu m)
Hydraulic Tank	27.80 gal (105.22 l)
Transmission	6.10 gal (23.09 l)

Dimensions

Height - Top of Cab	11.30 ft (3.44 m)
Hinge Pin - Max Height	13.60 ft (4.15 m)
Length with Bucket on Ground	27.30 ft (8.32 m)
Reach at Max Lift and Dump	5.30 ft (1.62 m)
Turning Circle	43.60 ft (13.29 m)
Wheelbase	10.70 ft (3.26 m)
Width Over Tires	9.50 ft (2.90 m)

Driveline

Differential lock	Front- Locking Rear- Open
Parking Brake Type	Wet Multi Disc - Transmission
Ride control system	Optional
Service Brake - Location	Axle Inboard
Service Brake Actuation	Hydraulic
Service Brake Type	Wet Disc
Tire size - Standard	23.5 R25

Engine

Alternator	130 amps
Displacement	549.30 cu in (9,001.43 cu cm)
Emission level	Tier 4
Engine Make	John Deere
Engine Model	PowerTech PSS 6090
Engine Output-Net	232.00 hp (173.01 kw)
Make	Deere PowerTech
Net Power	232.00 hp (173.01 kw)
Pump	Piston
Rated Speed	1700 rpm
System Voltage	24 V
Torque	783.30 lbs ft (1,062.00 nm)
Torque Rise	56%
Transmission Type	Powershift

Operating Specifications

Front Axle/Diff Fluid Capacity	5.90 gal (22.33 l)
Fuel Capacity	104.90 gal (397.05 l)
Operating Weight	41,186.80 lbs (18,682.04 kg)
Rated Bucket Capacity	4.00 cu yd (3.06 cu m)
Rear Axle/Diff Fluid Capacity	5.90 gal (22.33 l)

Transmission

Pump Flow	78.50 gpm (297.12 lpm)
System Pressure	251.7 psi

Weights

Operating Weight

41,188.00 lbs (18,682.59 kg)

John Deere 644Ks currently for sale

A 2020 John Deere 644K From CDM Inc. for Call for Price

A 2018 John Deere 644K From Brandt Tractor LTD for $147,641.00 USD

A 2012 John Deere 644K From McCoy Construction & Forestry for $129,000.00 USD

A 2012 John Deere 644K From Pittman Tractor Company, Inc. for Call for Price

A 2017 John Deere 644K From Pape Machinery for $139,500.00 USD

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