10 material differences · fewer than 12

Tractor oneJohn Deere 66302007–2012No measured PTO figureTractor twoRenault Ares 636 RZ2001–2003No measured PTO figure

Which should you choose?

Read our verdict on the 6630 and the Ares 636 RZ → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

10 material differences · 7 fields identical or within 5%, which is not counted as material

John Deere 6630 and Renault Ares 636 RZ, field by field
Field	6630	Ares 636 RZ	Gap
Engine
Engine power, claimed claimed	128.3 hp	128.3 hp	—
Engine declared	John Deere PowrTech 6.068 HL-280/V2-CR	JOHN DEERE 6068 TRT 54	differs
Displacement declared	6.79 L	6.79 L	—
Maximum torque declared	389 lb·ft · 527 N·m	411 lb·ft · 557 N·m	+6% Ares 636 RZ
Transmission
Top speed declared	24.9 mph · 40 km/h	24.9 mph · 40 km/h	—
Clutch declared	Pedal-operated, hydraulic wet Perma-Clutch II as multi-disc clutch	Oil-immersed GIMA multi-disc clutch with four discs and 230 mm diameter	differs
Hydraulics & hitch
Hydraulic centre declared	Closed centre	Closed centre	—
Hydraulic control declared	Load sensing	—	—
Pressure declared	3,408 psi · 235 bar	2,857 psi · 197 bar	+19% 6630
Rear PTO speeds declared	540E/540/1000 rpm	540/1000/540E/1000E rpm	differs
Weight & dimensions
Unladen weight declared	11,574 lb · 5,250 kg	12,985 lb · 5,890 kg	+12% Ares 636 RZ
Maximum permissible mass declared	20,944 lb · 9,500 kg	20,393 lb · 9,250 kg	—
Wheelbase declared	104.3 in · 2,650 mm	108.3 in · 2,750 mm	—
Length declared	186.1 in · 4,728 mm	242.1 in · 6,150 mm	+30% Ares 636 RZ
Width declared	91.2 in · 2,316 mm	100.4 in · 2,550 mm	+10% Ares 636 RZ
Height, over the cab declared	111.5 in · 2,833 mm	115.9 in · 2,945 mm	—
Ground clearance declared	22.4 in · 570 mm	20.1 in · 510 mm	+12% 6630
Turning radius, braked declared	—	14.9 ft · 4.53 m	—
Fuel tank declared	218.7 qt · 207.0 L	232.5 qt · 220.0 L	+6% Ares 636 RZ

Source

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