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Challenger MT645C Specs ( 2009-2010 )

Name: Challenger MT645C
Brand: Challenger

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Nebraska Test #S656

Challenger MT645C SCR

Max Drawbar HP 205.2 hp

Max Pull 27,890 lbs

View Full Test Data →

Overview

The Challenger MT645C is a 4WD row-crop farm tractor manufactured in Beauvais, France between 2009 and 2010. It features an AGCO Sisu Power 8.4L six-cylinder diesel engine and a Techstar continuously variable transmission (CVT) with infinite forward and reverse gears.

Ideal Applications

Engine and Emissions Configuration: The unit is equipped with a 512.6 cubic inch turbocharged intercooled diesel engine utilizing selective catalytic reduction (SCR) to meet Interim Tier 4 emissions standards, producing a maximum rated power of 270 hp.

Tested Drawbar and PTO Performance: According to Nebraska Tractor Test data, this model achieved a maximum tested PTO output of 242.3 hp and a maximum drawbar pull of 27,890 lbs while operating with the Techstar CVT.

Hydraulic and Hitch Specifications: This tractor features a closed center load sensing hydraulic system with a total flow of 46.2 gpm and a Category III rear hitch providing a lift capacity of 21,336 lbs at the 24-inch mark.

Production

Description	Row-Crop tractor / Built in Beauvais, France / Original price was $206,331 in 2009
Manufacturer	Challenger (a part of AGCO)

Engine

Engine type	AGCO SISU POWER 8.4L 6-cyl diesel
Exhaust fluid (DEF)	7.9 gal (29.9 L)
Fuel tank	155.9 gal (590.1 L)
Bore/Stroke	4.37x5.71 inches (111 x 145 mm)
Compression	16.7:1
Description	AGCO SISU POWER 84CTA / turbocharged intercooled diesel / 6-cylinder / liquid-cooled / The engine uses AGCO's e3 selective catalytic reduction (SCR) system to reduce nitrogen oxides (NOx). An exhaust-gas recirculation (IEGR) version of the engine was optionally available.
Displacement	512.6 ci (8.4 L)
Emission control	selective catalytic reduction (SCR)
Emissions	Interim Tier 4
Fuel system	electronic high-pressure common rail
Maximum Power	270 hp (201.3 kW)
Power (gross)	240 hp (179.0 kW)
Rated RPM	2200
Starter	electric
Starter volts	12
Torque	874 lb-ft (1185.1 Nm)
Torque RPM	1500
Drawbar (tested)	180.1 hp (134.3 kW)
Engine (gross)	240 hp (179.0 kW)
PTO (claimed)	205 hp (152.9 kW)
PTO (tested)	250.0 hp (186.4 kW)

Transmission

Description	continuously variable transmission
Gears	infinite forward and reverse
Transmission	Techstar CVT
Type	continuously variable transmission

Mechanical

Cab	Cab standard with heat and air-conditioning. Optional heated seat, power adjustable mirrors, and automatic temperature control.
Description	Power steering / Hydraulic wet disc brakes
Differential lock	electro-hydraulic front and rear
Drive type	Four-wheel drive
Final drives	planetary

Hydraulics

Pressure	2,901 psi (200.0 bar)
Pump flow	26.4 gpm (99.9 lpm)
Total flow	46.2 gpm (174.9 lpm)
Type	closed center load sensing
Valves	4 to 6

Hitch

Control	electronic lower-link draft sensing
Front Hitch	III
Front lift (at ends)	11,020 lbs (4998 kg)
Rear lift (at 24"/610mm)	21,336 lbs (9678 kg)
Rear lift (at ends)	26,460 lbs (12002 kg)
Rear Type	III

PTO

Clutch	electro-hydraulic
Front PTO	independent OptOptional
Front PTO Type	1000 (1.375)
Rear PTO	independent
Rear PTO Type	1000E/1000 (1.75)

Electrical

Batteries	2
Battery CCA	775
Battery volts	12
Charging amps	240 *Two 120A alternators.
Charging system	alternator
Ground	negative

Dimensions & Tires

Standard tires (ag)	Front: 480/70R34. Rear: 520/85R46
Bar rear axle	4.33 by 118 inches (109 by 2997 mm)
Front tread	73.1/76.9 inches (185/195 cm) / 60.9 to 88.8 inches (154 to 225 cm)
Height (cab)	133.1 inches (338 cm)
Length	223.2 inches (566 cm)
Rear tread	58.5 to 119.5 inches (148 to 303 cm)
Wheelbase	122.2 inches (310 cm)
Front tire	480/70R34
Rear tire	520/85R46
Weight	24250 to 25795 pounds
Wheelbase	122.2 inches (310 cm)

Challenger MT645C Weight

Max capacity	38,890 lbs (17640 kg)
Operating	25,795 lbs (11700 kg)
Shipping	24,250 lbs (10999 kg)

Challenger MT645C attachments

Description	front-end loader

MT645C Serial Number Location

Description	Serial number plate below the tractor cab door on the right side.

OCED Tractor Test 2496

Description	SCR diesel Techstar CVT 4WDOctober 2008 - November 2009, Link: OCED Tractor Test 2496 file / PTO performance / Drawbar performance / Pull at 7.6 KPH / Pull at 3.9 KPH
Fuel use	12.1 gal/hour (45.8 l/hour) / 11.6 gal/hour (43.9 l/hour) / 12.1 gal/hour (45.8 l/hour) / 11.6 gal/hour (43.9 l/hour)
Max power	242.3 hp (180.7 kW) / 180.1 hp (134.3 kW)
Max pull	26,505 lbs (12022 kg)
Power at rated engine speed	212.7 hp (158.6 kW)
Power at rated PTO speed	232.9 hp (173.7 kW)

OCED Tractor Test 2557

Description	IEGR diesel Techstar CVT 4WDOctober 2009 - March 2010, Link: OCED Tractor Test 2557 file / PTO performance / Drawbar performance / Pull at 7.50 KPH / Pull at 4.02 KPH
Fuel use	14.0 gal/hour (53.0 l/hour) / 13.5 gal/hour (51.1 l/hour) / 13.8 gal/hour (52.2 l/hour) / 13.5 gal/hour (51.1 l/hour)
Max power	250.0 hp (186.4 kW) / 175.1 hp (130.6 kW)
Max pull	26770 lbs (12142 kg)
Power at rated engine speed	216.2 hp (161.2 kW)
Power at rated PTO speed	239.0 hp (178.2 kW)

References

Description	Challenger - The New MT600C Series published in 2009, by AGCO

Tractor Tests

Description	OECD 2496: SCR diesel Techstar CVT 4WD / OECD 2557: IEGR diesel Techstar CVT 4WD

Variants

8650	similar Massey Ferguson model

Nebraska Tractor Test Results

Test #S656

Download PDF

Test Date: October 2008 - February 2009

Location: DLG - Test Centre, Technology and Farm inputs, Max-Eyth-Weg 1, D-64823 Gross-Umstadt, Germany

This section is compiled from original Nebraska Tractor Test PDFs using AI-assisted extraction and human review. For full verification, download the source PDF above. Differences between reports, incomplete source data, and occasional extraction or data entry mistakes can occur.

PTO Drawbar Hydraulics Technical Sound Tires & Weight

Maximum Power & Fuel Consumption

Max Power (1 Hour)

242.30 hp

@ 1850 rpm

Rated Engine Speed

212.70 hp

N/A lb/hp·hr

Standard PTO Speed

232.90 hp

@ N/A rpm PTO

Torque Statistics

Maximum Torque	811 lb-ft (1,100 Nm)
Torque Rise	59.9%
Power Increase @ 1850 RPM	13.9%

PTO Power Curve

Maximum Power & Fuel Consumption Details

Condition	HP	kW	RPM	Fuel gal/hr	Fuel L/hr
Rated Engine Speed	212.70	158.60	2200	11.57	43.80
Maximum Power (1 Hour)	242.30	180.70	1850	12.15	45.99

Varying Power & Fuel Consumption

Click column headers to sort

Power	RPM	gal/hr	lb/hp·hr	hp·hr/gal	DEF gal/hr
212.70	2200	11.57	0.38	18.38	N/A
182.50	2222	10.18	0.39	17.92	N/A
137.60	2234	8.23	0.42	16.72	N/A
92.10	2242	6.30	0.48	14.62	N/A
46.10	2250	4.42	0.67	10.46	N/A
N/A	2260	2.62	N/A	N/A	N/A

Ballasted Front Drive Engaged Fuel Consumption

Click column headers to sort

Power	Pull (lbs)	Speed	RPM	Slip	Air °F	Cool °F	Barometer Inch Hg	Condition	Fuel Consumption Hp Hr Gal	Fuel Consumption Lb Hp Hr
175.90	13,705	4.81	2200	2.60	43	167	29.00	Maximum Power—Turtle 7.5	15.23	0.46
135.00	10,270	4.93	2221	2.20	43	163	29.00	75% of Pull at Maximum Power—Turtle 7.5	14.24	0.49
91.20	6,830	5.01	2231	1.60	43	154	29.00	50% of Pull at Maximum Power—Turtle 7.5	12.33	0.57
134.80	10,270	4.92	1872	2.00	43	151	29.00	75% of Pull at Reduced Engine Speed—Turtle 9	15.53	0.45
91.00	6,825	5.00	1880	1.50	45	153	29.00	50% of Pull at Reduced Engine Speed—Turtle 9	13.86	0.50

Ballasted Front Drive Engaged Maximum Power At Selected Speeds

Click column headers to sort

Power	Pull (lbs)	Speed	RPM	Slip	Air °F	Cool °F	Barometer Inch Hg	Fuel Consumption Hp Hr Gal	Fuel Consumption Lb Hp Hr	Gear Setting
179.40	27,890	2.41	1882	15.10	43	160	29.00	14.67	0.48	Turtle 5
198.10	24,615	3.02	1851	7.40	43	165	29.00	16.24	0.43	Turtle 6
204.50	19,835	3.87	1851	4.30	43	167	29.00	16.75	0.42	Turtle 7.5
204.90	16,130	4.76	1851	2.90	43	163	29.00	16.80	0.42	Turtle 9
202.10	13,035	5.81	1851	2.40	43	162	29.00	16.55	0.42	Turtle 11
199.30	10,850	6.89	1852	2.00	43	162	29.00	16.35	0.43	Turtle 13
195.20	9,260	7.90	1854	1.70	43	167	29.00	15.99	0.44	Turtle 15
192.70	8,125	8.89	1855	1.60	43	167	29.00	15.79	0.44	Turtle 17
187.10	19,390	3.62	1850	4.40	37	162	29.00	15.35	0.45	Rabbit 7.5
197.40	15,915	4.65	1851	3.20	37	162	29.00	16.19	0.43	Rabbit 9
200.10	13,240	5.67	1851	2.50	39	163	29.00	16.35	0.43	Rabbit 11
200.40	11,080	6.79	1852	2.10	39	167	29.00	16.40	0.43	Rabbit 13
199.00	9,370	7.96	1851	2.00	39	162	29.00	16.29	0.43	Rabbit 15
195.70	8,215	8.93	1853	1.80	39	163	29.00	16.04	0.44	Rabbit 17

Unballasted Front Drive Engaged Fuel Consumption

Click column headers to sort

Power	Pull (lbs)	Speed	RPM	Slip	Air °F	Cool °F	Barometer Inch Hg	Condition	Fuel Consumption Hp Hr Gal	Fuel Consumption Lb Hp Hr
180.10	14,275	4.73	2200	1.90	54	178	29.20	Maximum Power—Turtle 7.5	15.53	0.45
137.70	10,700	4.83	2225	1.10	54	180	29.20	75% of Pull at Maximum Power—Turtle 7.5	14.72	0.47
92.50	7,100	4.89	2233	0.70	52	169	29.20	50% of Pull at Maximum Power—Turtle 7.5	12.74	0.55
138.40	10,705	4.85	1950	1.10	54	165	29.20	75% of Pull at Reduced Engine Speed—Turtle 9	15.68	0.45
92.70	7,130	4.87	1934	0.70	54	163	29.20	50% of Pull at Reduced Engine Speed—Turtle 9	14.06	0.50

Unballasted Front Drive Engaged Maximum Power At Selected Speeds

Click column headers to sort

Power	Pull (lbs)	Speed	RPM	Slip	Air °F	Cool °F	Barometer Inch Hg	Fuel Consumption Hp Hr Gal	Fuel Consumption Lb Hp Hr	Gear Setting
173.00	26,505	2.45	2029	14.70	52	153	29.70	14.17	0.49	Turtle 5
188.10	26,045	2.71	1849	10.70	52	172	29.70	15.48	0.45	Turtle 6
204.20	19,235	3.98	1850	3.80	63	179	29.70	16.70	0.42	Turtle 7.5
205.20	17,665	4.36	1851	2.80	63	174	29.80	16.85	0.41	Turtle 9
203.30	12,915	5.90	1851	1.70	61	172	29.80	16.70	0.42	Turtle 11
199.70	11,020	6.79	1850	1.70	52	160	29.90	16.40	0.43	Turtle 13
199.20	9,605	7.78	1852	1.00	54	176	29.80	16.34	0.43	Turtle 15
196.80	8,310	8.88	1852	1.00	52	178	29.80	16.14	0.43	Turtle 17
194.00	18,560	3.92	1851	3.10	48	158	29.20	15.89	0.44	Rabbit 7.5
197.90	16,560	4.48	1850	2.50	48	172	29.20	16.19	0.43	Rabbit 9
202.70	13,510	5.63	1852	1.80	48	176	29.20	16.61	0.42	Rabbit 11
203.40	11,395	6.69	1852	1.40	48	174	29.20	16.65	0.42	Rabbit 13
203.10	9,805	7.77	1851	1.20	48	180	29.20	16.65	0.42	Rabbit 15
202.20	8,625	8.79	1855	1.00	48	180	29.20	16.55	0.42	Rabbit 17

Category: IVN Quick Attach: No

Three Outlet Sets Combined

Sustained Pressure	2,770 psi
Flow Rate (min press)	N/A gpm
Max Power	75.60 hp

Single Outlet Set

Sustained Pressure	2,655 psi
Flow Rate (min press)	N/A gpm
Max Power	40.50 hp

Engine

Make	Sisu Diesel
Type	six cylinder vertical with turbocharger, air to air intercooler and SCR technology
Displacement	513 cu in (8419 ml)
Compression Ratio	16.7 to 1
Rated Engine Speed	2200 rpm
Air Cleaner	two paper elements
Crankshaft	lengthwise

Chassis

Type	front wheel assist with duals
Steering	hydrostatic
Transmission	CVT. A combination of mechanical and hydrostatic sections allow an infinite speed adjustment within the ranges noted. The transmission has two mechanical ranges.
Wheelbase	122.20 in (3105 mm)
Front Tread Width	60.8" (1545 mm) to 89.2" (2265 mm) in
Rear Tread Width	60.0" (1525 mm) to 101.8" (2585 mm) in
Brakes	multiple wet disc hydraulically operated by two foot pedals that can be locked together
Hydraulic Control	direct engine drive
Unladen Tractor Mass	25,795 lbs ( 11,700 kg )

Consumables

Fuel	No. 2 Diesel
DEF Fluid	N/A

Sound Levels

At No Load In Turtle 4 6 Mph	71.00 dB(A)

Challenger MT645C Specs ( 2009-2010 )

Overview

Ideal Applications

Production

Engine

Transmission

Mechanical

Hydraulics

Hitch

PTO

Electrical

Dimensions & Tires

Challenger MT645C Weight

Challenger MT645C attachments

MT645C Serial Number Location

OCED Tractor Test 2496

OCED Tractor Test 2557

References

Tractor Tests

Variants

Nebraska Tractor Test Results

PTO Performance

Maximum Power & Fuel Consumption

Torque Statistics

PTO Power Curve

Maximum Power & Fuel Consumption Details

Varying Power & Fuel Consumption

Drawbar Performance

Ballasted Front Drive Engaged Fuel Consumption

Ballasted Front Drive Engaged Maximum Power At Selected Speeds

Unballasted Front Drive Engaged Fuel Consumption

Unballasted Front Drive Engaged Maximum Power At Selected Speeds

Hydraulic Performance

Three Outlet Sets Combined

Single Outlet Set

Technical Specifications

Engine

Chassis

Consumables

Sound Levels

Sound Levels

Tires & Weight

Tires & Tracks

Test Remarks