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See horsepower, lift capacity, hydraulic flow, and the numbers that matter to your work. Up to 4 machines, side by side, in graphs built to show which tractor is better at what.

2 of 4 selected

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KiotiRX6640P

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JohnDeere4066M

Comparison loaded for 2 tractors.

The headline numbers at a glance.

Kioti RX6640PJohn Deere 4066M

Engine HPhp

▲66.4 hp

65 hp

PTO HPhp

▲54.9 hp

51.9 hp

Weightlb

6,051 lb

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Loader Liftlb

▲3,300 lb

2,396 lb

1,764 lb

At pivot@ 19.7 in ahead of pivot

3-Pt Lift (24 in)lb

▲4,327.7 lb

2,500 lb

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Full Spec Sheet

Every published spec, side by side, including the details the graphs above don't chart.

Spec	KiotiRX6640P	John Deere4066M


PTO Power	54.9 hp	51.9 hp
Alternator	Not Published	75 A, 12 V
Air Cleaner	Not Published	Dual element (dry type with safety element)
Engine Type	In-Line Vertical, Water-cooled 4-Cycle Turbo Diesel, CRDI (4H243T)	Diesel
Fuel System	Common Rail Direct Injection (CRDI)	High-pressure common rail direct injection
Displacement	148.6 in³	127.6 in³
No. of Cylinders	4	4
Rated Engine Speed	2600 rpm	2600 rpm
Cooling System Type	Water-cooled	Liquid (water pump)
Engine Manufacturer	KIOTI	Yanmar
Engine Power (Gross)	66.4 hp	65 hp @ 600 rpm
Engine Emissions Constraints	Tier 4	Tier 4

Weight with ROPS and Loader	6,051 lb	Not Published
Weight with Cab and Loader	Not Applicable	Not Applicable

Warranty Length & Coverage	Tractors (Non-Commercial Application): 24 months parts & labor; Extended (Non-Commercial, driveline/powertrain): 48 months parts & labor; Limited time: eligible units receive total 6 years (72 months) extended powertrain warranty coverage.	6-year/2,000-hour powertrain; 2-year/2,000-hour basic (full machine)

Pump Type	Tandem Gear	Dual gear
Steering Flow	8.2 gpm	5.7 gpm
Implement Flow	12.4 gpm	10.2 gpm
Total Hydraulic Flow	20.6 gpm	17.4 gpm
Hydraulic System Type	Open center	Open center
Rear Remote Hydraulic Flow	Not Published	Not Published
Overall Hydraulic Pump Flow	20.6 gpm	17.4 gpm
No. of Optional Remote Valves	1	Up to 6 rear remotes
No. of Standard Remote Valves	1	Not Published

PTO Rear	540 / 540E rpm	540 rpm
PTO Type	Independent	Independent (electrohydraulic)
Lift Control Type	Electronic Control	Position control
Hitch Lift Capacity	5,584.3 lb	3,130 lb
Mid-PTO Availability	Not Applicable	Available
Category, 3-Point Hitch	Category II	Category 1 (limited)
Hitch Lift Capacity (at 24”)	4,327.7 lb	2,500 lb

R3 Turf - Rear	Not Applicable	44X18.00-20 (4PR)
R3 Turf - Front	Not Applicable	27X10.50-15
Tire Size & Options	R1 Agricultural, R4 Industrial	R1 Bar, R3 Turf, R4 Industrial
R4 Industrial - Rear	18.4-24/8	420/85D24
R4 Industrial - Front	12.5/80-18	260/70D16.5
R1 Agricultural - Rear	16.9-30	13.6-28 (6PR) or 380/70R28 or 360/80R28
R1 Agricultural - Front	11.2-24	8.00-16 (10PR) or 280/70R16 or 250/75R16

Coolant Capacity	2.51 gal	Open station: 6.8 qt; Cab: 8.0 qt (if equipped)
Crankcase Capacity	2.83 gal	5.6 qt (with filter)
Fuel Tank Capacity	26.40 gal	Open station: 15.0 gal; Cab: 14.7 gal (if equipped)
Front Axle Fluid Capacity	2.60 gal	5.3 qt
Transmission / Hydraulic System Capacity	11.75 gal	12.5 gal

Loader Lift Height	127.1 in (to pivot pin)	112.1 in
Loader Breakout Force	5,875.3 lb (at pivot pins)	At pivot: 3,853 lbf; @ 19.7 in ahead of pivot: 2,902 lbf
Quick Attach Loader System	Built-in parking stand; designed to be quickly and easily attached and detached.	Rigid mounted with parking kit available; Parking stand kit BW16127 (parkable)
Loader Lift Capacity (Full Height)	3,300.0 lb (to full height at pivot pins)	At pivot: 2,396 lb; @ 19.7 in ahead of pivot: 1,764 lb

Clutch	Wet Disc	Wet; wet clutch disk diameter 5.08 in
No. of Speeds	12 forward / 12 reverse	PowrReverser: 12F/12R; eHydro: Infinitely-variable, 3 range
Transmission Type	Manual: Power Shuttle	Standard: 12/12 PowrReverser (PRT); Optional: eHydro (eHST), 3-range hydrostatic
Max Travel Speed (Forward)	22.01 mph	18.6 mph
Max Travel Speed (Reverse)	21.92 mph	18.6 mph
Differential Lock & Limited Slip Options	Rear differential lock (standard)	Differential lock: Yes

Brakes	Wet Multi Disc	Multi-plate wet disc
Steering	Hydrostatic Power Steering	Hydrostatic power steering
Frame Type	Not Published	ROPS - Fixed
Front Axle Type	Not Published	Mechanical front wheel drive (MFWD) - Standard; engagement On-the-Go
Drawbar Capacity	Not Published	Max vertical load 1103 lb
Front Axle Rating	Not Published	(Continuous) 3307 lb
Seat Suspension & Adjustability	Mechanical Suspension Seat	Optional mechanical suspension seat; adjustable weight 52-275.6 lb (115-275 lb); fore/aft adjustment; flips forward

Wheelbase	85.40 in	73.0 in
Overall Width	82.10 in	78.2 in
Ground Clearance	15.70 in	Front axle: 15.6 in; Drawbar support: 14.8 in
Height to Top of ROPS	114.80 in	93.7 in
Height to Top of Cab Model	Not Applicable	Not Applicable
Height to Top of ROPS (folded)	Not Published	69.5 in
Min. Turn Radius without Brakes	12.80 ft (3.90 m)	17.1 ft (5.2 m)
Overall Length with 3-Point Hitch	150.30 in	130.6 in

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