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Challenger MT445B Specs ( 2004-2013 )

Name: Challenger MT445B
Brand: Challenger

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Nebraska Test #Summary 515

Challenger MT445B

Max Drawbar HP 65.7 hp

Max Pull 8,680 lbs

View Full Test Data →

Overview

The Challenger MT445B is a utility tractor manufactured by AGCO in Beauvais, France, between 2004 and 2013, featuring a 4.4L Caterpillar 3054T turbocharged diesel engine. This model is equipped with a 16-speed Autopower IV transmission and was available in both two-wheel and four-wheel drive configurations with a weight range of 8,840 to 9,445 pounds.

Ideal Applications

Engine and PTO Performance: The 4.4L four-cylinder diesel engine is rated at 85 hp and produced a tested maximum PTO power of 75.9 hp at 2200 RPM during OCED Tractor Test 2291.

Transmission and Mechanical Layout: The Autopower IV transmission provides 16 forward and reverse gears via four power shift gears in four ranges, supported by an electro-hydraulic wet disc PTO clutch.

Hitch and Hydraulic Capacity: This tractor features a Category II rear hitch with electronic top-link draft control and telescopic stabilizers, providing a lift capacity of 7,285 lbs at 24 inches.

Production

Description	Utility tractor / Built in Beauvais, France / The Challenger MT445B is similar to the Massey Ferguson 5445.
Manufacturer	Challenger (a part of AGCO)

Engine

Engine type	Caterpillar 4.4L 4-cyl diesel
Fuel tank	40 gal (151.4 L)
Air cleaner	dual paper elements
Bore/Stroke	4.134x5.00 inches (105 x 127 mm)
Compression	17.5:1
Description	Caterpillar 3054T / turbocharged diesel / 4-cylinder / liquid-cooled vertical / This engine was alternative branded as a Perkins 1104C depending on market.
Displacement	268 ci (4.4 L)
Emissions	Tier 2
Power	85 hp (63.4 kW)
Rated RPM	2200
Starter volts	12
Drawbar (tested)	60.5 hp (45.1 kW)
PTO (claimed)	70 hp (52.2 kW)
PTO (tested)	75.9 hp (56.6 kW)

Transmission

Clutch	wet disc
Description	Four power shift gears in four ranges.
Gears	16 forward and reverse
Transmission	Autopower IV
Transmission type	16-speed four speed power shift
Type	four speed power shift

Mechanical

Cab	ROPS. Cab optional with air-conditioning.
Description	Hydraulic wet disc brakes
Differential lock	electro-hydraulic
Drive type	Two- or four-wheel drive
Final drives	inboard planetary
Steering	hydrostatic power

Hydraulics

Cab Type	closed center load sensing
Pressure	2900 psi (200.0 bar)
Pump flow	26.4 gpm (open center) (99.9 lpm)
ROPS Type	open center
Valves	2 to 4

Hitch

Control	electronic top-link draft control
Rear Arms	telescopic stabilizers and link ends
Rear lift (at 24"/610mm)	7285 lbs (3304 kg)
Rear Type	II

PTO

Clutch	electro-hydraulic wet disc
Rear PTO	independent
Rear PTO Type	540/1000

Electrical

Battery volts	12
Ground	negative

Dimensions & Tires

Ag front	10.00-16 (2WD)
Ag rear	480/70R38
Description	Flange rear axle
Weight	8,840 lbs (2WD) (4009 kg)
Wheelbase	97 inches (246 cm)
Front tire	10.00-16
Rear tire	480/70R38
Weight	8840 to 9445 pounds
Wheelbase	97 inches (246 cm)

OCED Tractor Test 2291

Description	Diesel 16-speed 4WDSeptember 2004 - 2004, Link: OCED Tractor Test 2291 file / PTO performance / Drawbar performance / Gear 1LC used for power test. / Gear 2TC used for pull test.
Fuel use	4.7 gal/hour (17.8 l/hour) / 5.0 gal/hour (18.9 l/hour) / 4.8 gal/hour (18.2 l/hour) / 4.9 gal/hour (18.5 l/hour)
Max power	75.9 hp (56.6 kW) / 60.5 hp (45.1 kW)
Max pull	8680 lbs (3937 kg)
Power at rated engine speed	70.7 hp (52.7 kW)
Power at rated PTO speed	73.4 hp (54.7 kW)

References

Description	Challenger MT400B Product Information Guide published in 2003, by AGCO / Challenger MT400B Series published in 2004, by AGCO / Challenger Specialty Wheel Tractors published in 2007

Nebraska Tractor Test Results

Test #Summary 515

Download PDF

Test Date: September, 2004

Location: Groupement d'Antony, Parc de Touvoie, BP 44 Antony, Cedex, France 92163

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

Rated Engine Speed

70.70 hp

N/A lb/hp·hr

Standard PTO Speed

73.40 hp

@ 1000 rpm PTO

Torque Statistics

Maximum Torque	251 lb-ft (340 Nm)
Torque Rise	48.7%

PTO Power Curve

Maximum Power & Fuel Consumption Details

Condition	HP	kW	RPM	PTO RPM	Fuel gal/hr	Fuel L/hr
Rated Engine Speed	70.70	52.70	2200	1100	4.99	18.88
Standard PTO Speed (1000 rpm)	73.40	54.70	2000	1000	4.77	18.05

Varying Power & Fuel Consumption

Click column headers to sort

Power	RPM	gal/hr	lb/hp·hr	hp·hr/gal	DEF gal/hr
70.70	2200	4.99	0.50	14.16	N/A
61.40	2252	4.63	0.54	13.26	N/A
46.50	2272	3.98	0.61	11.68	N/A
31.10	2283	3.24	0.74	9.60	N/A
15.70	2297	2.40	1.09	6.52	N/A
N/A	2307	1.75	N/A	N/A	N/A

Fuel Consumption Characteristics (Unballasted) 2wd

Click column headers to sort

Power	kW	Pull (lbs)	Pull (kN)	Speed	km/h	RPM	Slip	Barometer Inch Hg	Barometer Kpa	Condition	Fuel Hp Hr Gal	Fuel Kg Kw Hr	Fuel Kw Hr L	Fuel Lb Hp Hr	Temp Air Dry C	Temp Air Dry F	Temp Coolant C	Temp Coolant F
55.80	41.60	4,745	21.10	4.41	7.10	2200	8.20	30.10	101.80	Maximum Power—6th(3TD) Gear	12.64	0.34	2.49	0.56	13	55	86	187
43.20	32.20	3,580	15.90	4.52	7.28	2231	7.10	30.10	101.80	75% of Pull at Maximum Power—6th(3TD) Gear	10.00	0.43	1.97	0.71	13	55	86	187
29.40	21.90	2,385	10.60	4.62	7.43	2251	6.10	30.10	101.80	50% of Pull at Maximum Power—6th(3TD) Gear	8.05	0.54	1.59	0.88	13	55	86	187
43.00	32.10	3,575	15.90	4.52	7.27	2078	7.00	30.10	101.80	75% of Pull at Reduced Engine Speed—7th(4TC) Gear	10.66	0.41	2.10	0.67	14	57	86	187
29.10	21.70	2,385	10.60	4.58	7.37	2087	6.10	30.10	101.80	50% of Pull at Reduced Engine Speed—7th(4TC) Gear	8.81	0.49	1.74	0.81	14	57	85	185

Fuel Consumption Characteristics (Unballasted) Front Drive Engaged

Click column headers to sort

Power	kW	Pull (lbs)	Pull (kN)	Speed	km/h	RPM	Slip	Barometer Inch Hg	Barometer Kpa	Condition	Fuel Hp Hr Gal	Fuel Kg Kw Hr	Fuel Kw Hr L	Fuel Lb Hp Hr	Temp Air Dry C	Temp Air Dry F	Temp Coolant C	Temp Coolant F
60.50	45.10	3,690	16.40	6.15	9.89	2202	4.90	29.90	101.30	Maximum Power—8th(1LC) Gear	12.23	0.35	2.41	0.58	15	59	87	189
46.80	34.90	2,770	12.30	6.34	10.20	2247	3.20	29.90	101.30	75% of Pull at Maximum Power—8th(1LC) Gear	10.52	0.41	2.07	0.67	15	59	87	189
31.50	23.50	1,840	8.20	6.42	10.33	2260	2.00	29.90	101.30	50% of Pull at Maximum Power—8th(1LC) Gear	8.14	0.53	1.60	0.87	15	59	87	189
47.20	35.20	2,785	12.40	6.36	10.24	1790	4.70	29.90	101.30	75% of Pull at Reduced Engine Speed—10th(1LD) Gear	12.59	0.34	2.48	0.56	15	59	84	183
32.10	23.90	1,865	8.30	6.46	10.40	1797	3.50	29.90	101.30	50% of Pull at Reduced Engine Speed—10th(1LD) Gear	10.04	0.43	1.98	0.71	15	59	84	183

Unballasted 2wd Maximum Power In Selected Gears

Click column headers to sort

Gear	Power	kW	Pull (lbs)	Pull (kN)	Speed	km/h	RPM	Slip	Barometer Inch Hg	Barometer Kpa	Fuel Hp Hr Gal	Fuel Kg Kw Hr	Fuel Kw Hr L	Fuel Lb Hp Hr	Temp Air Dry C	Temp Air Dry F	Temp Coolant C	Temp Coolant F
4th (2TD) Gear	53.50	39.90	7,255	32.30	2.77	4.45	2195	14.70	30.10	101.80	10.83	0.40	2.13	0.66	13	55	85	185
5th (3TC) Gear	59.00	44.00	6,900	30.70	3.21	5.16	2105	11.90	30.10	101.80	12.00	0.36	2.36	0.59	13	55	85	185
6th (3TD) Gear	62.10	46.30	6,405	28.50	3.64	5.85	1854	10.10	30.10	101.80	13.29	0.33	2.62	0.53	13	55	87	189
7th(4TC) Gear	61.40	45.80	5,890	26.20	3.91	6.30	1854	9.60	30.10	101.80	13.09	0.33	2.58	0.54	14	57	86	187
8th(1LC) Gear	62.60	46.70	4,790	21.30	4.90	7.90	1850	8.30	30.10	101.80	13.34	0.32	2.63	0.53	14	57	87	189
9th(4TD) Gear	61.60	45.90	4,615	20.50	5.00	8.05	1839	8.00	30.10	101.80	13.15	0.33	2.59	0.54	14	57	87	189
10th (1LD) Gear	62.10	46.30	3,730	16.60	6.24	10.04	1855	7.90	30.10	101.80	13.65	0.32	2.69	0.52	14	57	87	189
11th (2LC) Gear	60.80	45.30	3,035	13.50	7.51	12.09	1850	7.30	30.10	101.80	12.99	0.33	2.56	0.55	14	57	86	187

Unballasted Front Drive Engaged Maximum Power In Selected Gears

Click column headers to sort

Gear	Power	kW	Pull (lbs)	Pull (kN)	Speed	km/h	RPM	Slip	Barometer Inch Hg	Barometer Kpa	Fuel Hp Hr Gal	Fuel Kg Kw Hr	Fuel Kw Hr L	Fuel Lb Hp Hr	Temp Air Dry C	Temp Air Dry F	Temp Coolant C	Temp Coolant F
3rd(2TC)Gear	51.50	38.40	8,680	38.60	2.22	3.58	2233	14.40	29.90	101.30	10.67	0.40	2.10	0.67	14	57	85	185
4th(2TD)Gear	60.60	45.20	7,890	35.10	2.88	4.64	2142	8.40	29.90	101.30	12.28	0.35	2.42	0.58	14	57	85	185
5th(3TC)Gear	62.60	46.70	8,060	35.80	2.91	4.69	1858	9.10	29.90	101.30	13.25	0.33	2.61	0.54	14	57	87	189
6th(3TD)Gear	64.40	48.00	6,295	28.00	3.84	6.18	1856	5.70	29.90	101.30	13.63	0.32	2.69	0.52	14	57	87	189
7th(4TC)Gear	64.60	48.20	5,930	26.40	4.09	6.58	1848	6.20	29.90	101.30	13.77	0.31	2.71	0.52	15	59	86	187
8th(1LC)Gear	65.70	49.00	4,800	21.40	5.13	8.26	1855	5.80	29.90	101.30	13.81	0.31	2.72	0.51	15	59	87	189
9th(4TD)Gear	65.40	48.80	4,695	20.90	5.23	8.41	1847	5.10	29.90	101.30	13.89	0.31	2.74	0.51	15	59	87	189
10th(1LD)Gear	64.10	47.80	3,695	16.40	6.51	10.47	1846	4.80	29.90	101.30	13.65	0.32	2.69	0.52	15	59	87	189
11th(2LC)Gear	62.90	46.90	3,010	13.40	7.84	12.62	1853	3.40	29.90	101.30	13.30	0.32	2.62	0.53	15	59	87	189

Category: II Quick Attach: None

Two Outlet Sets Combined

Sustained Pressure	2,800 psi
Delivery Pressure	2,305 psi
Flow Rate (min press)	15.60 gpm
Max Power	20.50 hp

Hitch Dimensions (No Load)

Dimension	Inches	mm

Engine

Make	Perkins Diesel
Type	four cylinder vertical with turbocharger
Displacement	268 cu in (4400 ml)
Compression Ratio	17.5 to 1
Rated Engine Speed	2200 rpm
Air Cleaner	two paper elements
Crankshaft	lengthwise

Chassis

Type	2WD and FWA
Steering	hydrostatic
Transmission	selective gear fixed ratio with partial (2) range operator controlled powershift
Speeds	16 forward (23.45 mph max)
Brakes	multiple wet disc hydraulically operated by two foot pedals that can be locked together
Hydraulic Control	direct engine drive

Consumables

Fuel	No. 2 Diesel
DEF Fluid	N/A

Challenger MT445B Specs ( 2004-2013 )

Overview

Ideal Applications

Production

Engine

Transmission

Mechanical

Hydraulics

Hitch

PTO

Electrical

Dimensions & Tires

OCED Tractor Test 2291

References

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

Fuel Consumption Characteristics (Unballasted) 2wd

Fuel Consumption Characteristics (Unballasted) Front Drive Engaged

Unballasted 2wd Maximum Power In Selected Gears

Unballasted Front Drive Engaged Maximum Power In Selected Gears

Hydraulic Performance

Two Outlet Sets Combined

Hitch Dimensions (No Load)

Technical Specifications

Engine

Chassis

Consumables

Sound Levels

Tires & Weight

Tires & Tracks

Test Remarks