KIOTI RX6640
A 66.4-horsepower utility tractor from the KIOTI RX40 Series — power-shuttle transmission, an electronic 3-point hitch with dual external lift cylinders, and ROPS or factory cab.
Starting at
$48,089 MSRP
Photo coming soon
66.4 hp
66.4 hp (49.5 kW)
Engine HP
54.9 hp
54.9 hp (40.9 kW)
PTO HP
4,327.7 lb
4,327.7 lb (1,963.0 kg) @ 24" aft of hitch
3-Pt Lift Capacity
20.6 gpm
20.6 gpm (78 L/min), tandem gear pump
Hydraulic Flow
6,051.7 lb
6,051.7 lb (2,745.0 kg), w/ AG tires
Operating Weight
Configurations & Pricing
The RX6640 is available in several transmission and cab configurations. Starting MSRP shown; ask us for a full quote.
| Configuration | Transmission | Starting MSRP |
|---|---|---|
| RX6640P (Power Shuttle, ROPS) | Power Shuttle 12Fx12R | $48,089 |
| RX6640PC (Power Shuttle, Cab) | Power Shuttle 12Fx12R | $56,155 |
MSRP only. Pricing does not include tires, freight, setup, or dealer options. Ask us about current KIOTI offers.
Full Specifications
Complete manufacturer specifications for the KIOTI RX6640.
Engine
- Gross Horsepower
- 66.4 hp (49.5 kW)
- PTO Horsepower
- 54.9 hp (40.9 kW)
- Engine Model
- KIOTI 4H243T, 4-cyl water-cooled turbo diesel, CRDI
- Displacement
- 148.6 cu in (2,435.1 cc)
- Rated RPM
- 2,600 rpm
- Fuel Capacity
- 26.4 gal (100.0 L)
Drivetrain
- Transmission
- Power Shuttle, 12Fx12R
- Drive
- 4WD
PTO
- Rear PTO
- 540 / 540E rpm, independent
Hydraulics
- Hydraulic Flow
- 20.6 gpm (78 L/min), tandem gear pump
3-Point Hitch
- Category
- Category II
- Lift Capacity
- 4,327.7 lb (1,963.0 kg) @ 24" aft of hitch
Dimensions
- Overall Length
- 150.3 in (3,817.0 mm), incl. 3-pt hitch
- Overall Width
- 82.1 in (2,085.0 mm), min tread
- Overall Height
- 114.8 in (2,917.0 mm), top of ROPS
- Wheelbase
- 85.4 in (2,170.0 mm)
- Ground Clearance
- 15.7 in (400.0 mm)
- Turning Radius
- 12.8 ft (3.9 m)
- Operating Weight
- 6,051.7 lb (2,745.0 kg), w/ AG tires
Specs sourced from official KIOTI manufacturer literature, current as of July 2026.
Standard Highlights
- Power Shuttle 12Fx12R transmission
- Electronic 3-point hitch w/ dual external lift cylinders
- Category II 3-point hitch
- Independent 540/540E rear PTO
- 4,327 lb 3-pt lift
- ROPS or factory cab
Factory Attachments
KIOTI factory-matched attachments for the RX6640.
Front-End Loader
KL7340
- Maximum Lift Height (To Pivot Pin)
- 127.1 in (3,229.0 mm)
- Maximum Lift Height (Under Level Bucket)
- 116.2 in (2,952.0 mm)
- Clearance (With Bucket Dumped)
- 93.6 in (2,377.0 mm)
- Reach (With Bucket on Ground)
- 83.6 in (2,124.0 mm)
- Lift Capacity (At Pivot Pin)
- 3,300.0 lb (1,497.0 kg)
- Breakout Force (At Pivot Pin)
- 5,875.3 lb (2,665.0 kg)
- Rollback Force (At 800mm)
- 4,118.2 lb (1,868.0 kg)
- Bucket Width
- 81.9 in (2,080.0 mm)
- Main Relief Pressure
- 2,560 psi (180 bar)
These are the factory attachments matched to this tractor. We'll confirm exact fit when we quote it.
Who This Fits
The RX6640 is a working tractor for farms and heavy chores: hay ground, big loader work, PTO implements that punish smaller machines. If you're feeding cattle or maintaining serious acreage, this is the class built for it. It's also the class the owner runs on his own farm.
Common Questions
What transmission does the RX6640 come with?
The RX6640 runs a Power Shuttle, 12Fx12R. Direction changes happen on a shuttle lever, no clutch-pedal dance during loader work. At this horsepower it's the setup most buyers want for steady fieldwork.
Is a front loader available for the RX6640?
Yes — KIOTI offers a factory-matched front-end loader for the RX6640. You'll find the exact loader model and its published specs in the Factory Attachments section above. Ask us for the current loader package and pricing when you request a quote.
What warranty comes with a new RX6640?
New KIOTI tractors carry KIOTI's factory warranty, with powertrain coverage that runs longer than the base warranty. Exact terms can change by model year and promotion, so we'll confirm the current coverage when we quote your unit.
Get a Real Quote on the RX6640
Tell us what you're working on and we'll follow up with pricing and availability.
Request a Quote — RX6640
We typically respond within one business day.