John Deere 622GP

Name: John Deere 622GP
Brand: John Deere

Configuration: 6WD (hydrostatic front drive), 3.66 m × 610 mm × 22 mm moldboard, 14R24 L2 tires, low-profile cab; John Deere PSS 6.8L EPA Final Tier 4/EU Stage V. Doc covers 622G and 622GP (Grade Pro).

22 sourced values · Sources: John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25

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Dimension diagram

A	Overall length	≈ 8,890 mm
B	Overall height	≈ 3,180 mm
C	Wheelbase	≈ 6,160 mm
D	Ground clearance	587 mm
E	Overall width	≈ 2,490 mm
F	Track gauge / tread	≈ 2,080 mm

Weights

Spec	Value	Source
Operating weight	16,790 kg	Published: 16,790 kg John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Full fuel, 3.66 m moldboard, 14R24 L2 tires, 79 kg operator, FT4 (37,015 lb). Typical with push block and ripper/scarifier: 19 100 kg.
Max gross (laden) weight	22,680 kg	Published: 22,680 kg John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Maximum operating weight (50,000 lb).

Dimensions

Spec	Value	Source
Overall length	≈ 8,890 mm	Published: 8.89 m John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Dimension G. With push block and ripper 9.99 m.
Overall width	≈ 2,490 mm	Published: 2.49 m John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 With 14R24 tires (17.5R25: 2.64 m).
Overall height	≈ 3,180 mm	Published: 3.18 m John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Height to top of cab (full-height cab 3.40 m).
Wheelbase	≈ 6,160 mm	Published: 6.16 m John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Tandem axle spacing 1.54 m.
Track gauge / tread	≈ 2,080 mm	Published: 2.08 m John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Wheel tread on ground, 14R24 tires (17.5R25: 2.16 m).
Ground clearance	587 mm	Published: 587 mm John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Front axle, 14R24 tires.
Turning radius	≈ 7,210 mm	Published: 7.21 m John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Front steer and articulation.

Undercarriage / tires

Spec	Value	Source
Undercarriage type	Wheeled, articulated frame, tandem rear (6WD)	Published: Wheeled, articulated frame, tandem rear (6WD) John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Hydrostatic front-wheel drive.
Number of axles	3	Published: 3 John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Front axle plus tandem rear.
Wheels (count)	6	Published: 6 John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25
Tire size	14R24	Published: 14R24 John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 On 254 mm rim; 13x24 and 17.5R25 offered.

Ground pressure

Spec	Value	Source
Ground pressure	Not published	John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Not published in this document.

Axle loads

Spec	Value	Source
Axle load, front (unladen/operating)	4,795 kg	Published: 4,795 kg John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Operating weight distribution, FT4.
Axle load, rear (unladen/operating)	11,995 kg	Published: 11,995 kg John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Rear tandem, FT4.
Axle load, front (laden/max)	Not published	John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Not published; front 5438 kg with push block and ripper/scarifier.
Axle load, rear (laden/max)	Not published	John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Not published; rear 13 662 kg with push block and ripper/scarifier.

Engine

Spec	Value	Source
Engine model	John Deere PowerTech PSS 6.8L	Published: John Deere PowerTech PSS 6.8L John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 EPA Final Tier 4/EU Stage V.
Net power	127 kW	Published: 127 kW John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Net power gear 1 (170 hp); range 127–168 kW (gears 1–8, FT4).
Gross power	Not captured	—
Displacement	6.8 L	Published: 6.8 L John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 414 cu in.
Rated speed	Not captured	—

Hydraulics

Spec	Value	Source
Pump / aux flow	212 L/min	Published: 212 L/min John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Maximum pump flow (56 gpm).
System / relief pressure	≈ 19 MPa	Published: 18,961 kPa John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Maximum system pressure (2,750 psi).

Performance

Spec	Value	Source
Max travel speed	45.5 km/h	Published: 45.5 km/h John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Gear 8 forward (28.3 mph).
Blade / moldboard width	≈ 3,660 mm	Published: 3.66 m John Deere 622G/GP 6WD Motor Grader brochure/specifications DKAGGDR622 (23-10). Retrieved 2026-10-25 Moldboard base length (12 ft).

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