Utility tractorsSpec sheet
Deutz-Fahr M640
The Deutz-Fahr M640 is a powerful utility tractor built from 2007 to 2009. It has a strong 6-cylinder diesel engine that makes 171 horsepower, which is very high for its class. The engine is turbocharged and intercooled, helping it run efficiently. With a 4-wheel drive system and power steering, this tractor can handle tough jobs on the farm. The M640 has a partial power shift transmission with 24 forward and 24 reverse gears, giving the driver lots of options. It has a comfortable cab for the operator and uses wet disc brakes for safe stopping. The tractor is big, measuring 187.4 inches long and 118.1 inches tall. It's also heavy, weighing 13,160 pounds, which is above average for similar tractors. The M640 has a Category III hitch at the back for attaching various farm tools and an open center hydraulic system to power them.
ManufacturerDeutz-FahrPower171 hp(127.5 kW)Class150–300 HP tractors →Engine6-cylinderTransmissionPartial power shift
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Key specifications
- Category
- Utility
- Engine power
- 171hp
- Operating weight
- 13,160 lb
- Transmission
- Partial power shift
Category comparison
M640 compared with its category
vs. Utility medianDistribution
Engine Power (hp)
All recorded Utility tractors
171 hp · 94th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The M640 ranks at the 94th percentile for engine power among recorded utility tractors.
Overview
About the Deutz-Fahr M640
The Deutz-Fahr M640 is a powerful utility tractor built from 2007 to 2009. It has a strong 6-cylinder diesel engine that makes 171 horsepower, which is very high for its class. The engine is turbocharged and intercooled, helping it run efficiently. With a 4-wheel drive system and power steering, this tractor can handle tough jobs on the farm. The M640 has a partial power shift transmission with 24 forward and 24 reverse gears, giving the driver lots of options. It has a comfortable cab for the operator and uses wet disc brakes for safe stopping. The tractor is big, measuring 187.4 inches long and 118.1 inches tall. It's also heavy, weighing 13,160 pounds, which is above average for similar tractors. The M640 has a Category III hitch at the back for attaching various farm tools and an open center hydraulic system to power them.
Full specifications
Recorded specifications
General
| Manufacturer | Deutz-Fahr |
|---|---|
| Model | M640 |
| Category | Utility tractor |
| Type | 4x4 MFWD 4WD |
| Years built | 2007–2009 |
| Operating weight | 13,160lb(5,969 kg) |
Engine
| Make | Deutz-Fahr |
|---|---|
| Power | 171hp(127.5 kW) |
| Cylinders | 6 |
| Displacement | 369.6ci(6.06 L) |
| Bore | 3.98in(101.1 mm) |
| Stroke | 4.96in(126 mm) |
Transmission
| Type | Partial power shift |
|---|---|
| Forward gears | 24 |
| Reverse gears | 24 |
Chassis & drive
| Chassis | 4x4 MFWD 4WD |
|---|---|
| Drive | 4WD |
| Steering | Power |
| Brakes | Wet disc |
| Cab | Cab |
Hydraulics
| Type | Open center |
|---|
Dimensions
| Length | 187.4in(4,760 mm) |
|---|---|
| Height | 118.1in(3,000 mm) |
| Operating weight | 13,160lb(5,969 kg) |
Tires
| Front | 540/65R28Convert |
|---|---|
| Rear | 650/65R38Convert |
Closest alternatives
M640 compared with the nearest models by horsepower
The closest utility models to the Deutz-Fahr M640 by rated horsepower are the Steyr 6170 CVT and the Challenger MT555B. The Steyr 6170 CVT matches it on rated power and weighs 1,770 lb more, at 87 lb per horsepower against 77 lb. The Challenger MT555B matches it on rated power and weighs 1,160 lb more, so it carries more weight per horsepower, which helps traction in draft work. Of the 3 models, the M640 has the lowest weight per horsepower at 77 lb per hp.
| Spec | Deutz-Fahr M640 | Steyr 6170 CVT | Challenger MT555B |
|---|---|---|---|
| Engine power | 171 hp127.5 kW | 171 hp127.5 kW | 171.4 hp127.8 kW |
| Operating weight | 13,160 lb5,969 kg | 14,930 lb6,772 kg | 14,320 lb6,495 kg |
| Weight per hp | 77 lb/hp47 kg/kW | 87 lb/hp53 kg/kW | 84 lb/hp51 kg/kW |
| Displacement | 369.6 ci6.06 L | 402.8 ci6.6 L | 366 ci6 L |
| Cylinders | 6 | 6 | 6 |
| Transmission | Partial power shift | CVT | AutoPower VI |
| Drive | 4WD | 4WD | Four-Wheel Drive |
Calculators
Calculators for the M640
PTO power
About 142 to 154 PTO hp
Estimated from the 171 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 171 hp tractor can run
Maximum size is about a 20.5 ft rotary cutter or a 17.5 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
89 lb per PTO hp as listed
Heavy draft work calls for 120 to 135 lb/hp. The calculator gives the ballast to add.
Units
171 hp is 127.5 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Tires
Convert the 650/65R38 tire size
The calculator gives diameter, rolling circumference and the metric or inch equivalent.
Category medians
M640 vs. Utility median
Deutz-Fahr M640 compared with other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 171 hp | 55 hp | +211% | 94th |
| Engine Displacement | 370 ci | 183 ci | +102% | 88th |
| Cylinders | 6 | 4 | +50% | 93rd |
| Forward Gears | 24 | 12 | +100% | 92nd |
| Operating Weight | 13,160 lb | 5,303 lb | +148% | 91st |
| Length | 187 in | 137 in | +37% | 92nd |
| Height | 118 in | 94.1 in | +26% | 94th |
Medians and percentiles are calculated from the utility tractors in the database that have a recorded value for each specification (sample size 4,321–5,720 models).
Same manufacturer
Other Deutz-Fahr models
Other manufacturers
Models with similar horsepower
FAQ
Frequently asked questions
What years was the Deutz-Fahr M640 manufactured?
Production of the Deutz-Fahr M640 ran from 2007 through 2009.
What type of transmission does the Deutz-Fahr M640 have?
The Deutz-Fahr M640 uses a Partial power shift transmission offering 24 forward gears.
What hydraulics does the Deutz-Fahr M640 have?
The Deutz-Fahr M640 uses an Open center hydraulic system.
What are the factory tire sizes for the Deutz-Fahr M640?
The Deutz-Fahr M640 comes with 540/65R28 front tires and 650/65R38 rear tires.
What three-point hitch category does the Deutz-Fahr M640 use?
The Deutz-Fahr M640 has a Category III three-point hitch.
How powerful is the Deutz-Fahr M640?
The Deutz-Fahr M640 has an engine power output of 171 hp. It is powered by a 6-cylinder engine displacing 369.6 ci.
What is the working weight of the Deutz-Fahr M640?
The operating weight of the Deutz-Fahr M640 is approximately 13,160 lb.
What routine service does the Deutz-Fahr M640 need?
Regular maintenance for the Deutz-Fahr M640 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.