Machine models

Challenger MT425B to MT465B specifications

Entries in this reference
Listing-entry count
5

Short answer

Challenger MT425B to MT465B: tractors.

Selected configuration figures
Configuration	Documented field and quantity
MT425B	Power 75 hp Weight Lower 8885 lb Upper 9515 lb
MT445B	Power 85 hp Weight Lower 8840 lb Upper 9445 lb
MT455B	Power 95 hp Weight Lower 8885 lb Upper 9445 lb
MT455D	Power (gross) 110 hp Weight 11,900 lb
MT465B	Power 105 hp Weight Lower 9170 lb Upper 9975 lb

MT425B to MT465B specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Challenger	MT425B to MT465B	5	MT425B, MT445B, MT455B, MT455D, and MT465B

Engine
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Engine	Caterpillar 4.4L 4-cyl diesel	Caterpillar 4.4L 4-cyl diesel	Caterpillar 4.4L 4-cyl diesel	AGCO Power 4.9L 4-cyl diesel	Caterpillar 4.4L 4-cyl diesel

Specification	MT445B	MT455B	MT455D	MT465B
Fuel tank	40 gal	40 gal	64 gal	40 gal

Specification	MT455D
Exhaust fluid (DEF)	9.2 gal

Transmission and speeds
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Transmission	16-speed four speed power shift	16-speed four speed power shift	16-speed four speed power shift	16-speed four speed power shift	16-speed four speed power shift
Type	four speed power shift	four speed power shift	four speed power shift	four speed power shift	four speed power shift
Gears	16 forward and reverse	16 forward and reverse	16 forward and reverse	16 forward and reverse	16 forward and reverse
Clutch	wet disc	wet disc	wet disc	wet disc	wet disc

Power
Specification	MT425B	MT445B	MT455B	MT465B
Engine	75 hp	85 hp	95 hp	105 hp
Drawbar (tested)	48.5 hp	60.5 hp	66.8 hp	73.0 hp
PTO (tested)	61.7 hp	75.9 hp	82.6 hp	98.6 hp

Specification	MT425B	MT445B	MT455B	MT455D	MT465B
PTO (claimed)	60 hp	70 hp	80 hp	90 hp	90 hp

Specification	MT455D
Engine (gross)	110 hp

Mechanical
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Mechanical	Two- or four-wheel drive; Power steering; Hydraulic wet disc brakes; Cab optional	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning	Four-wheel drive; Wet disc brakes; Cab standard with air-conditioning	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning

Specification	MT445B	MT455B	MT465B
Final drives	inboard planetary	inboard planetary	inboard planetary
Differential lock	electro-hydraulic	electro-hydraulic	electro-hydraulic

Specification	MT445B	MT455B	MT455D	MT465B
Steering	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power

Tractor hitch
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Rear Type	II	II	II	III/II	II

Specification	MT445B	MT455B	MT455D	MT465B
Control	electronic top-link draft control	electronic top-link draft control	electronic lower link draft sensing	electronic top-link draft control
Rear lift (at 24"/610mm)	7,285 lb	7,285 lb	11,400 lb	7,285 lb

Specification	MT445B	MT455B	MT465B
Rear Arms	telescopic stabilizers and link ends	telescopic stabilizers and link ends	telescopic stabilizers and link ends

Specification	MT455D
Drawbar	Cat. 2

Power take-off (PTO)
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Rear PTO Type	540/1000	540/1000	540/1000	540/1000	540/1000

Specification	MT445B	MT455B	MT455D	MT465B
Rear PTO	independent	independent	independent	independent

Specification	MT445B	MT455B	MT465B
Clutch	electro-hydraulic wet disc	electro-hydraulic wet disc	electro-hydraulic wet disc

Dimensions & Tires
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Weight	Lower 8885 lb Upper 9515 lb	Lower 8840 lb Upper 9445 lb	Lower 8885 lb Upper 9445 lb	11,900 lb	Lower 9170 lb Upper 9975 lb

Specification	MT425B	MT445B	MT455B	MT465B
Front tire	7.50-16	10.00-16	10.00-16	10.00-16
Rear tire	18.4R34	480/70R38	18.4R38	18.4R38

Specification	MT445B	MT455B	MT455D	MT465B
Wheelbase	97 in	97 in	105 in	97 in

Electrical
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Ground	negative	negative	negative	negative	negative
Battery volts	12	12	12	12	12

Specification	MT455D
Charging system	alternator
Charging amps	175
Batteries	2
Battery CCA	600

Engine Detail
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Displacement	268 cu in	268 cu in	268 cu in	299 cu in	268 cu in
Bore/Stroke	4.134x5.00 in / 105 x 127 mm	4.134x5.00 in / 105 x 127 mm	4.134x5.00 in / 105 x 127 mm	4.251x5.276 in / 108 x 134 mm	4.134x5.00 in / 105 x 127 mm
Emissions	Tier 2	Tier 2	Tier 2	Interim Tier IV	Tier 2
Air cleaner	dual paper elements	dual paper elements	dual paper elements	dual dry element	dual paper elements
Rated RPM	2200	2200	2200	2200	2200
Starter volts	12	12	12	12	12
Engine Detail	Caterpillar 3054; diesel; 4-cylinder	Caterpillar 3054T; turbocharged diesel; 4-cylinder	Caterpillar 3054T; turbocharged diesel; 4-cylinder	AGCO Power 49AWI; turbocharged air-to-air intercooled diesel; 4-cylinder 16-valve	Caterpillar 3054T; turbocharged diesel; 4-cylinder

Specification	MT425B	MT445B	MT455B	MT465B
Power	75 hp	85 hp	95 hp	105 hp
Compression	19.3:1	17.5:1	17.5:1	17.5:1

Specification	MT425B	MT455D
Fuel system	direct injection	electronic high pressure common rail

Specification	MT455D
Emission control	selective catalytic reduction (SCR)
Power (gross)	110 hp
Pre-heating	thermostart
Starter	electric

Speeds
Specification	MT425B
Speeds	With 18.4R38 rear tires

Challenger MT425B Tires
Specification	MT425B
Ag front	7.50-16 (2WD)
Ag rear	18.4R34

Dimensions and weight
Specification	MT425B
2WD Weight	8,885 lb
4WD Weight	9,515 lb

Specification	MT445B	MT455B	MT455D	MT465B
Dimensions	Flange rear axle	Flange rear axle	Flange rear axle	Flange rear axle

Specification	MT445B	MT455B
Weight	8,840 lb (2WD)	8,885 lb (2WD)

Specification	MT455D
Shipping weight	11,900 lb
Bar rear axle	3.23 by 80 in / 82 by 2032 mm

Specification	MT465B
Operating weight	9,170 lb (2WD)

Hydraulics
Specification	MT445B	MT455B	MT465B
ROPS Type	open center	open center	open center
Cab Type	closed center load sensing	closed center load sensing	closed center load sensing
Pressure	2,900 psi	2,900 psi	2,900 psi
Pump flow	26.4 gpm (open center)	26.4 gpm (open center)	26.4 gpm (open center)

Specification	MT445B	MT455B	MT455D	MT465B
Valves	2 to 4	2 to 4	2 to 4	2 to 4

Specification	MT455D
Type	closed center load sensing (CCLS)
SCV flow	15 gpm (open center)

Challenger MT445B Tires
Specification	MT445B
Ag front	10.00-16 (2WD)
Ag rear	480/70R38

Challenger MT455B Tires
Specification	MT455B
Ag front	10.00-16 (2WD)
Ag rear	18.4R38

Challenger MT465B Tires
Specification	MT465B
Ag front	10.00-16 (2WD)
Ag rear	18.4R38

Variants — Source comparison annotation
Source guide	Differing-field count reported
MT425B to MT465B	63

Ratios
Figure	MT425B	MT445B	MT455B	MT455D	MT465B
Engine horsepower per 1,000 lb of weight	8.4	9.6	10.7	9.2	11.5
PTO power as a share of engine power	80%	82%	84%	82%	86%

Figure	MT445B	MT455B	MT455D	MT465B
Hitch lift as a share of machine weight	82%	82%	96%	79%
Fuel tank per engine horsepower	0.47 gal	0.42 gal	0.58 gal	0.38 gal

Figure	MT445B	MT455B	MT465B
Pump flow per engine horsepower	0.31 gpm	0.28 gpm	0.25 gpm

Reference directory classification
Equipment group	tractor

Owner experience with the MT425B to MT465B — Historical owner-entry sample
Index	Entry queried	Reviews	Forum discussions	First review in sample	Last review in sample
TractorByNet	MT455B tractor	1	1	Mar 18, 2010	Mar 18, 2010

Model	Owner rating	Forum discussions	Model years reviewed	Pros named more than once	Cons named more than once
MT455B	5.0 of 5 from 1 owner review	1 (1,775 views)	2007	named once each: starts	named once each: i use a little more fuel than before

MT425B to MT465B: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
Heavy Equipment Forums, TractorByNet, and The Farming Forum	tractor	Challenger and the MT455 line that the MT445B, MT455B, MT455D, MT465B belongs to (no title names the exact model). That is too few titles to say what owners mostly ask about, so the most recent are listed instead	5

Challenger Mt455 Fuel Supply Problem (Heavy Equipment Forums, 2025-09-08)
Challenger Mt455b Cold Weather Starting Below 20f (TractorByNet, 2024-12-13)
Challenger Mt 455 Proposed Electronic Lift Control Modification (Heavy Equipment Forums, 2024-10-21)
Challenger Mt465b Massey 5460 Transmission Shift Problem (The Farming Forum, 2024-01-22)

Used market for the MT425B to MT465B — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	TractorHouse	Challenger tractor	13

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
MT445B	1	2004	$39,000	$39,000	$39,000	3,021
MT455B	3	2005	$15,000	$46,088	$18,000	None shown
MT465B	9	2005 to 2013	$23,398	$44,900	$33,250	2,743

MT425B to MT465B: recall reference — Dated CPSC search
Search date	Database	Names queried	Search result
2026-09-24	U.S. Consumer Product Safety Commission	Challenger together with the tractor MT425B, MT445B, MT455B, MT455D	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Challenger MT425B — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT445B — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT455B — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT455D — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT465B — TractorData. Observed 2026-09-24.
Owner reports	Owner reports: TractorByNet owner reviews for Challenger MT455B — TractorByNet. Observed 2026-09-24.
Forum threads	Forum threads: Heavy Equipment Forums thread index for Challenger MT425B to MT465B — Heavy Equipment Forums. Observed 2026-09-24.
Forum threads	Forum threads: TractorByNet thread index for Challenger MT425B to MT465B — TractorByNet. Observed 2026-09-24.
Forum threads	Forum threads: The Farming Forum thread index for Challenger MT425B to MT465B — The Farming Forum. Observed 2026-09-25.
Used-market listings	Used-market listings: TractorHouse listings for Challenger MT445B — TractorHouse. Observed 2026-09-24.
Federal agency data	Federal agency data: Recall database search for Challenger — U.S. Consumer Product Safety Commission. Observed 2026-09-24.

Recorded observations — Historical TractorByNet review observation
Reference scope	Equipment type	Reviewed label in source	Owner entries	Average owner score	Scale maximum	Reported cons
MT425B, MT445B and MT455B	tractor	MT455B	1	5.0	5	No con named by multiple reviewers

Forum-title snapshot
Observation field	Recorded value
Title count	5
Forum indexes	Heavy Equipment Forums, TractorByNet, and The Farming Forum
Search wording	the MT425B to MT465B tractor
Latest title quoted by the reference	Challenger Mt455 Fuel Supply Problem

Challenger MT425B to MT465B: Configuration records

MT425B

Specification	Source figure
Transmission and speeds
Transmission	16-speed four speed power shift
Gears	16 forward and reverse
Power
PTO (claimed)	60 hp
Drawbar (tested)	48.5 hp
PTO (tested)	61.7 hp
Tractor hitch
Rear Type	II
Power take-off (PTO)
Rear PTO Type	540/1000
Dimensions & Tires
Front tire	7.50-16
Rear tire	18.4R34
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	268 cu in
Bore/Stroke	4.134x5.00 in / 105 x 127 mm
Emissions	Tier 2
Fuel system	direct injection
Air cleaner	dual paper elements
Compression	19.3:1
Rated RPM	2200
Starter volts	12
Tires
Ag front	7.50-16 (2WD)
Ag rear	18.4R34
Dimensions and weight
2WD Weight	8,885 lb
4WD Weight	9,515 lb
MT400B options in the 2009 CH08369 brochure
2009 MT400B: standard hydraulic system	open center
2009 MT400B: rear-linkage category	Category II
2009 MT400B: draft sensing	top link
2009 MT400B: standard lift capacity at 24 inches	lb 7,817 kg 3,546
2009 MT400B: optional lift capacity at 24 inches	lb 9,189 kg 4,168
2009 MT400B: operator station	cab or open platform
Additional specifications
Engine	Caterpillar 4.4L 4-cyl diesel
Type	four speed power shift
Clutch	wet disc
Mechanical	Two- or four-wheel drive; Power steering; Hydraulic wet disc brakes; Cab optional
Weight	Lower 8885 lb Upper 9515 lb
Power	75 hp
Engine Detail	Caterpillar 3054; diesel; 4-cylinder
Speeds	With 18.4R38 rear tires

Source

MT445B

Specification	Source figure
Engine
Fuel tank	40 gal
Transmission and speeds
Transmission	16-speed four speed power shift
Gears	16 forward and reverse
Power
PTO (claimed)	70 hp
Drawbar (tested)	60.5 hp
PTO (tested)	75.9 hp
Mechanical
Final drives	inboard planetary
Differential lock	electro-hydraulic
Steering	hydrostatic power
Tractor hitch
Rear Type	II
Control	electronic top-link draft control
Rear lift (at 24"/610mm)	7,285 lb
Rear Arms	telescopic stabilizers and link ends
Power take-off (PTO)
Rear PTO Type	540/1000
Rear PTO	independent
Dimensions & Tires
Front tire	10.00-16
Rear tire	480/70R38
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	268 cu in
Bore/Stroke	4.134x5.00 in / 105 x 127 mm
Emissions	Tier 2
Air cleaner	dual paper elements
Compression	17.5:1
Rated RPM	2200
Starter volts	12
Tires
Ag front	10.00-16 (2WD)
Ag rear	480/70R38
Hydraulics
ROPS Type	open center
Cab Type	closed center load sensing
Pressure	2,900 psi
Valves	2 to 4
Pump flow	26.4 gpm (open center)
MT400B options in the 2009 CH08369 brochure
2009 MT400B: standard hydraulic system	open center
2009 MT400B: rear-linkage category	Category II
2009 MT400B: draft sensing	top link
2009 MT400B: standard lift capacity at 24 inches	lb 7,817 kg 3,546
2009 MT400B: optional lift capacity at 24 inches	lb 9,189 kg 4,168
2009 MT400B: operator station	cab or open platform
Additional specifications
Engine	Caterpillar 4.4L 4-cyl diesel
Type	four speed power shift
Clutch	wet disc
Mechanical	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning
Weight	Lower 8840 lb Upper 9445 lb
Wheelbase	97 in
Power	85 hp
Engine Detail	Caterpillar 3054T; turbocharged diesel; 4-cylinder

Source

MT455B

Specification	Source figure
Engine
Fuel tank	40 gal
Transmission and speeds
Transmission	16-speed four speed power shift
Gears	16 forward and reverse
Power
PTO (claimed)	80 hp
Drawbar (tested)	66.8 hp
PTO (tested)	82.6 hp
Mechanical
Final drives	inboard planetary
Differential lock	electro-hydraulic
Steering	hydrostatic power
Tractor hitch
Rear Type	II
Control	electronic top-link draft control
Rear lift (at 24"/610mm)	7,285 lb
Rear Arms	telescopic stabilizers and link ends
Power take-off (PTO)
Rear PTO Type	540/1000
Rear PTO	independent
Dimensions & Tires
Front tire	10.00-16
Rear tire	18.4R38
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	268 cu in
Bore/Stroke	4.134x5.00 in / 105 x 127 mm
Emissions	Tier 2
Air cleaner	dual paper elements
Compression	17.5:1
Rated RPM	2200
Starter volts	12
Tires
Ag front	10.00-16 (2WD)
Ag rear	18.4R38
Hydraulics
ROPS Type	open center
Cab Type	closed center load sensing
Pressure	2,900 psi
Valves	2 to 4
Pump flow	26.4 gpm (open center)
MT400B options in the 2009 CH08369 brochure
2009 MT400B: standard hydraulic system	open center
2009 MT400B: rear-linkage category	Category II
2009 MT400B: draft sensing	lower link
2009 MT400B: standard lift capacity at 24 inches	lb 7,817 kg 3,546
2009 MT400B: optional lift capacity at 24 inches	lb 9,189 kg 4,168
2009 MT400B: operator station	cab or open platform
Additional specifications
Engine	Caterpillar 4.4L 4-cyl diesel
Type	four speed power shift
Clutch	wet disc
Mechanical	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning
Weight	Lower 8885 lb Upper 9445 lb
Wheelbase	97 in
Power	95 hp
Engine Detail	Caterpillar 3054T; turbocharged diesel; 4-cylinder

Source

MT455D

Specification	Source figure
Engine
Fuel tank	64 gal
Transmission and speeds
Transmission	16-speed four speed power shift
Gears	16 forward and reverse
Power
PTO (claimed)	90 hp
Engine (gross)	110 hp
Mechanical
Steering	hydrostatic power
Tractor hitch
Rear Type	III/II
Control	electronic lower link draft sensing
Rear lift (at 24"/610mm)	11,400 lb
Drawbar	Cat. 2
Power take-off (PTO)
Rear PTO Type	540/1000
Rear PTO	independent
Electrical
Ground	negative
Battery volts	12
Charging system	alternator
Charging amps	175
Batteries	2
Battery CCA	600
Engine Detail
Displacement	299 cu in
Bore/Stroke	4.251x5.276 in / 108 x 134 mm
Emissions	Interim Tier IV
Fuel system	electronic high pressure common rail
Air cleaner	dual dry element
Rated RPM	2200
Starter volts	12
Emission control	selective catalytic reduction (SCR)
Power (gross)	110 hp
Pre-heating	thermostart
Starter	electric
Dimensions and weight
Shipping weight	11,900 lb
Hydraulics
Valves	2 to 4
SCV flow	15 gpm (open center)
Type — Hydraulics	closed center load sensing (CCLS)
Additional specifications
Engine	AGCO Power 4.9L 4-cyl diesel
Exhaust fluid (DEF)	9.2 gal
Type	four speed power shift
Clutch	wet disc
Mechanical	Four-wheel drive; Wet disc brakes; Cab standard with air-conditioning
Weight	11,900 lb
Wheelbase	105 in
Engine Detail	AGCO Power 49AWI; turbocharged air-to-air intercooled diesel; 4-cylinder 16-valve
Bar rear axle	3.23 by 80 in / 82 by 2032 mm

Source

MT465B

Specification	Source figure
Engine
Fuel tank	40 gal
Transmission and speeds
Transmission	16-speed four speed power shift
Gears	16 forward and reverse
Power
PTO (claimed)	90 hp
Drawbar (tested)	73.0 hp
PTO (tested)	98.6 hp
Mechanical
Final drives	inboard planetary
Differential lock	electro-hydraulic
Steering	hydrostatic power
Tractor hitch
Rear Type	II
Control	electronic top-link draft control
Rear lift (at 24"/610mm)	7,285 lb
Rear Arms	telescopic stabilizers and link ends
Power take-off (PTO)
Rear PTO Type	540/1000
Rear PTO	independent
Dimensions & Tires
Front tire	10.00-16
Rear tire	18.4R38
Electrical
Ground	negative
Battery volts	12
Engine Detail
Displacement	268 cu in
Bore/Stroke	4.134x5.00 in / 105 x 127 mm
Emissions	Tier 2
Air cleaner	dual paper elements
Compression	17.5:1
Rated RPM	2200
Starter volts	12
Tires
Ag front	10.00-16 (2WD)
Ag rear	18.4R38
Hydraulics
ROPS Type	open center
Cab Type	closed center load sensing
Pressure	2,900 psi
Valves	2 to 4
Pump flow	26.4 gpm (open center)
MT400B options in the 2009 CH08369 brochure
2009 MT400B: standard hydraulic system	open center
2009 MT400B: rear-linkage category	Category II
2009 MT400B: draft sensing	lower link
2009 MT400B: standard lift capacity at 24 inches	lb 7,817 kg 3,546
2009 MT400B: optional lift capacity at 24 inches	lb 9,189 kg 4,168
2009 MT400B: operator station	cab or open platform
Additional specifications
Engine	Caterpillar 4.4L 4-cyl diesel
Type	four speed power shift
Clutch	wet disc
Mechanical	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning
Weight	Lower 9170 lb Upper 9975 lb
Wheelbase	97 in
Power	105 hp
Engine Detail	Caterpillar 3054T; turbocharged diesel; 4-cylinder
Operating weight	9,170 lb (2WD)

Source

Compare Challenger MT425B, MT445B, MT455B, MT455D, MT465B

Engine
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Engine	Caterpillar 4.4L 4-cyl diesel	Caterpillar 4.4L 4-cyl diesel	Caterpillar 4.4L 4-cyl diesel	AGCO Power 4.9L 4-cyl diesel	Caterpillar 4.4L 4-cyl diesel

Transmission and speeds
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Transmission	16-speed four speed power shift	16-speed four speed power shift	16-speed four speed power shift	16-speed four speed power shift	16-speed four speed power shift
Type	four speed power shift	four speed power shift	four speed power shift	four speed power shift	four speed power shift
Gears	16 forward and reverse	16 forward and reverse	16 forward and reverse	16 forward and reverse	16 forward and reverse
Clutch	wet disc	wet disc	wet disc	wet disc	wet disc

Power
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
PTO (claimed)	60 hp	70 hp	80 hp	90 hp	90 hp

Mechanical
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Mechanical	Two- or four-wheel drive; Power steering; Hydraulic wet disc brakes; Cab optional	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning	Four-wheel drive; Wet disc brakes; Cab standard with air-conditioning	Two- or four-wheel drive; Hydraulic wet disc brakes; ROPS. Cab optional with air-conditioning

Tractor hitch
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Rear Type	II	II	II	III/II	II

Power take-off (PTO)
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Rear PTO Type	540/1000	540/1000	540/1000	540/1000	540/1000

Dimensions & Tires
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Weight	Lower 8885 lb Upper 9515 lb	Lower 8840 lb Upper 9445 lb	Lower 8885 lb Upper 9445 lb	11,900 lb	Lower 9170 lb Upper 9975 lb

Electrical
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Ground	negative	negative	negative	negative	negative
Battery volts	12	12	12	12	12

Engine Detail
Specification	MT425B	MT445B	MT455B	MT455D	MT465B
Displacement	268 cu in	268 cu in	268 cu in	299 cu in	268 cu in
Bore/Stroke	4.134x5.00 in / 105 x 127 mm	4.134x5.00 in / 105 x 127 mm	4.134x5.00 in / 105 x 127 mm	4.251x5.276 in / 108 x 134 mm	4.134x5.00 in / 105 x 127 mm
Emissions	Tier 2	Tier 2	Tier 2	Interim Tier IV	Tier 2
Air cleaner	dual paper elements	dual paper elements	dual paper elements	dual dry element	dual paper elements
Rated RPM	2200	2200	2200	2200	2200
Starter volts	12	12	12	12	12
Engine Detail	Caterpillar 3054; diesel; 4-cylinder	Caterpillar 3054T; turbocharged diesel; 4-cylinder	Caterpillar 3054T; turbocharged diesel; 4-cylinder	AGCO Power 49AWI; turbocharged air-to-air intercooled diesel; 4-cylinder 16-valve	Caterpillar 3054T; turbocharged diesel; 4-cylinder

More in Challenger: MT455E–MT525E, MT862/MT867/MT875C specs, MT525B–MT565B.

Challenger MT425B to MT465B specifications

Sources for this page

Challenger MT425B to MT465B: Configuration records