Claas Ares 657 ATZ vs John Deere 6620

8 material differences · fewer than 12

Tractor one

2005–2007

No measured PTO figure

Tractor two

2002–2007

No measured PTO figure

Which should you choose?

Read our verdict on the Ares 657 ATZ and the 6620 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

8 material differences · 4 fields identical or within 5%, which is not counted as material

Claas Ares 657 ATZ and John Deere 6620, field by field
Field	Ares 657 ATZ	6620	Gap
Engine
Engine power, claimed claimed	123.2 hp	123 hp	—
Engine declared	—	John Deere PowrTech 6.068 HLA-070/V2-DE or 6.068 HL-471/HP	—
Displacement declared	—	6.79 L	—
Maximum torque declared	350 lb·ft · 474.9 N·m	353 lb·ft · 479.0 N·m	—
Transmission
Top speed declared	24.9 mph · 40 km/h	24.9–31.1 mph · 40–50 km/h	differs
Hydraulics & hitch
Hydraulic centre declared	—	Closed centre	—
Hydraulic control declared	—	Load sensing	—
Pressure declared	2,901 psi · 200 bar	3,017–3,220 psi · 208–222 bar	differs
Three-point lift at ends declared	—	16,755 lb · 7,600 kg	—
Rear PTO speeds declared	540/1000 rpm	540E/540/1000 rpm	differs
Weight & dimensions
Unladen weight declared	11,089 lb · 5,030 kg	13,040 lb · 5,915 kg	+18% 6620
Maximum permissible mass declared	19,401 lb · 8,800 kg	20,944 lb · 9,500 kg	+8% 6620
Wheelbase declared	111.0 in · 2,820 mm	104.3 in · 2,650 mm	+6% Ares 657 ATZ
Length declared	203.1 in · 5,160 mm	185.2 in · 4,705 mm	+10% Ares 657 ATZ
Width declared	100.4 in · 2,550 mm	96.3 in · 2,445 mm	—
Height declared	118.5 in · 3,010 mm	113.2 in · 2,875 mm	—
Ground clearance declared	—	18.1 in · 460 mm	—
Fuel tank declared	264.2 qt · 250 L	218.7 qt · 207.0 L	+21% Ares 657 ATZ

Source

Source