Machine models

Challenger MT575D to MT665E specifications

Entries in this reference
Listing-entry count
8

Short answer

Challenger MT575D to MT665E: tractors.

Selected configuration figures
Configuration	Documented field and quantity
MT575D	Maximum Power 215 hp Weight 17,000 lb
MT595D	Power 240 hp Engine AGCO Power 7.4L 6-cyl diesel
MT645D	Power (gross) 240 hp Weight 24,250 lb
MT645E	Maximum Power 270 hp Weight 23,810 lb
MT655D	Power (gross) 265 hp Weight 24,250 lb
MT655E	Maximum Power 295 hp Weight 23,810 lb
MT665D	Power (gross) 290 hp Weight 24,250 lb
MT665E	Maximum Power 320 hp Weight 23,810 lb

MT575D to MT665E specification matrix — Listing labels reported by the source
Publisher name	Source guide	Listing-entry count	Labels named by the source
Challenger	MT575D to MT665E	8	MT575D, MT595D, MT645D, MT645E, MT655D, MT655E, and 2 more

Engines
Specification	MT575D
Engines	AGCO Power 6.6L 6-cyl diesel; AGCO Power 7.4L 6-cyl diesel

Transmissions
Specification	MT575D
Transmissions	24-speed six-speed power shift; continuously variable transmission

Power
Specification	MT575D	MT595D	MT645E	MT655E	MT665E
Engine	200 hp	240 hp	240 hp	265 hp	290 hp

Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
PTO (claimed)	165 hp	195 hp	205 hp	205 hp	225 hp	225 hp	250 hp	250 hp
Drawbar (tested)	168.77 hp	177.8 hp	170.7 hp	209.1 hp	192.2 hp	217.2 hp	219.3 hp	232.7 hp
PTO (tested)	202.4 hp	233.9 hp	250.8 hp	242.6 hp	276.7 hp	261.5 hp	298.9 hp	284.8 hp

Specification	MT645D	MT655D	MT665D
Engine (gross)	240 hp	265 hp	290 hp

Mechanical
Specification	MT575D	MT595D	MT645D	MT655D	MT665D
Final drives	inboard planetary	inboard planetary	inboard planetary	inboard planetary	inboard planetary

Specification	MT575D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Differential lock	electro-hydraulic full locking	electro-hydraulic	electro-hydraulic	electro-hydraulic	electro-hydraulic	electro-hydraulic	electro-hydraulic

Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Steering	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000

Specification	MT575D	MT645D	MT655D	MT665D
Trailer brakes	hydraulic (optional)	pneumatic (optional)	pneumatic (optional)	pneumatic (optional)

Capacity
Specification	MT575D	MT645D	MT655D	MT665D
Fuel	114 gal	167 gal	167 gal	167 gal
Exhaust fluid (DEF)	11 gal	16 gal	16 gal	16 gal
Hydraulic system	26.4 gal	29.1 gal	29.1 gal	29.1 gal

Hydraulics
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Type	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)
Pressure	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi
Valves	2 to 4	2 to 4	4 to 6	4 to 6	4 to 6	4 to 6	4 to 6	4 to 6

Specification	MT575D	MT645D	MT655D	MT665D
Capacity	26.4 gal	29.1 gal	29.1 gal	29.1 gal

Specification	MT575D	MT595D	MT645D	MT655D	MT665D
SCV flow	24.3 gpm	24.3 gpm	26.4 gpm	26.4 gpm	26.4 gpm
Total flow	29 gpm	29 gpm	46 gpm	46 gpm	46 gpm

Specification	MT645E	MT655E	MT665E
Pump flow	54 gpm	54 gpm	54 gpm

Tractor hitch
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Rear Type	III	III	III	III/IVN	III	III/IVN	III	III/IVN
Drawbar	Cat. 2	Cat. 2	Cat. 3	Cat. 3	Cat. 3	Cat. 3	Cat. 3	Cat. 3

Specification	MT575D	MT595D
Control	electronic lower link draft control	electronic lower link draft control

Specification	MT575D
Rear lift (at 24"/610mm)	12,500 lb (AutoPower)

Specification	MT645D	MT655D	MT665D
Rear lift	22,760 lb	22,760 lb	22,760 lb
Front Hitch	III (optional)	III (optional)	III (optional)
Front lift (at ends)	11,000 lb	11,000 lb	11,000 lb

Specification	MT645E	MT655E	MT665E
Rear lift (at ends)	26,455 lb	26,455 lb	26,455 lb

Power take-off (PTO)
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Rear PTO	independent	independent	independent	independent	independent	independent	independent	independent

Specification	MT575D	MT595D	MT645D	MT655D	MT665D
Clutch	electro-hydraulic	electro-hydraulic	electro-hydraulic	electro-hydraulic	electro-hydraulic

Specification	MT575D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Rear PTO Type	540/1000	1000/1000E (1.75)	1000/1000E (1.75)	1000/1000E (1.75)	1000/1000E (1.75)	1000/1000E (1.75)	1000/1000E (1.75)

Specification	MT645D	MT655D	MT665D
Engine RPM	540E@1577	540E@1577	540E@1577

Dimensions & Tires
Specification	MT575D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Wheelbase	117.8 in	122 in	122 in	122 in	122 in	122 in	122 in
Weight	17,000 lb	24,250 lb	23,810 lb	24,250 lb	23,810 lb	24,250 lb	23,810 lb

Specification	MT575D	MT595D	MT645D	MT655D	MT665D
Front tire	420/85R28	420/90R30	480/70R34	480/70R34	480/70R34
Rear tire	480/80R42	480/80R46	520/85R46	520/85R46	520/85R46

Electrical
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Ground	negative	negative	negative	negative	negative	negative	negative	negative
Charging system	alternator	alternator	alternator	alternator	alternator	alternator	alternator	alternator
Charging amps	175	175	240	240 (twin 120A)	240	240 (twin 120A)	240	240 (twin 120A)
Battery volts	12	12	12	12	12	12	12	12

Specification	MT575D	MT595D	MT645D	MT655D	MT665D
Batteries	2	2	2	2	2

Specification	MT575D	MT595D
Battery CCA	600	600

Specification	MT645E	MT655E	MT665E
Charging volts	12	12	12

Engine options
Specification	MT575D
Engine options	AGCO Power 6.6L 6-cyl diesel; AGCO Power 7.4L 6-cyl diesel

Engine Detail
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Displacement	402.5 cu in	449.4 cu in	513.8 cu in	512.6 cu in	513.8 cu in	512.6 cu in	513.8 cu in	512.6 cu in
Bore/Stroke	4.252x4.724 in / 108 x 120 mm	4.252x5.276 in / 108 x 134 mm	4.370x5.709 in / 111 x 145 mm	4.37x5.71 in / 111 x 145 mm	4.370x5.709 in / 111 x 145 mm	4.37x5.71 in / 111 x 145 mm	4.370x5.709 in / 111 x 145 mm	4.37x5.71 in / 111 x 145 mm
Emissions	Interim Tier IV	Interim Tier IV	Interim Tier IV	Tier IV	Interim Tier IV	Tier IV	Interim Tier IV	Tier IV
Emission control	selective catalyitic reduction (SCR)	selective catalyitic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)
Starter	electric	electric	electric	electric	electric	electric	electric	electric
Starter volts	12	12	12	12	12	12	12	12
Engine Detail	AGCO Power; turbocharged intercooled diesel; 6-cylinder	AGCO Power; turbocharged intercooled diesel; 6-cylinder	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve

Specification	MT575D	MT595D	MT645E	MT655E	MT665E
Power	200 hp	240 hp	240 hp	265 hp	290 hp

Specification	MT575D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Maximum Power	215 hp	270 hp	270 hp	295 hp	295 hp	320 hp	320 hp
Rated RPM	2100	2100	2100	2100	2100	2100	2100

Specification	MT575D	MT595D	MT645D	MT655D	MT665D
Fuel system	electronic high pressure common rail	electronic high pressure common rail	electronic high-pressure common rail	electronic high-pressure common rail	electronic high-pressure common rail

Specification	MT575D	MT595D
Air cleaner	dual stage dry	dual stage dry

Specification	MT575D	MT645D	MT655D	MT665D
Pre-heating	thermostart	thermostart	thermostart	thermostart
Compression	17.4:1	16.7:1	16.7:1	16.7:1

Specification	MT645D	MT655D	MT665D
Power (gross)	240 hp	265 hp	290 hp

Transmission options
Specification	MT575D
Transmission options	24-speed six-speed power shift; continuously variable transmission

Transmission and speeds
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Transmission	AutoPower VI	24-speed six-speed power shift	continuously variable transmission	continuously variable transmission (CVT)	continuously variable transmission	continuously variable transmission (CVT)	continuously variable transmission	continuously variable transmission (CVT)
Type	six-speed power shift	six-speed power shift	continuously variable transmission	continuously variable transmission (CVT)	continuously variable transmission	continuously variable transmission (CVT)	continuously variable transmission	continuously variable transmission (CVT)
Gears	24 forward and reverse	24 forward and reverse	infinite forward and reverse	infinite forward and reverse (2-range)	infinite forward and reverse	infinite forward and reverse (2-range)	infinite forward and reverse	infinite forward and reverse (2-range)

Challenger MT575D Tires
Specification	MT575D
Standard tires (ag)	Front: 420/85R28 Rear: 480/80R42

Dimensions and weight
Specification	MT575D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Length	200.2 in	215.7 in	218.6 in	215.7 in	218.6 in	215.7 in	218.6 in
Height (cab)	120.8 in	141 in	141 in	141 in	141 in	141 in	141 in
Shipping weight	17,000 lb	24,250 lb	23,810 lb	24,250 lb	23,810 lb	24,250 lb	23,810 lb

Specification	MT575D	MT645D	MT655D	MT665D
Max weight	27,560 lb	33,070 lb	33,070 lb	33,070 lb

Specification	MT575D	MT595D	MT645E	MT655E	MT665E
Bar rear axle	3.23 by 80 in / 82 by 2032 mm	4.33 by 86.7 in / 109 by 2202 mm	4.33 by 105 in / 109 by 2667 mm	4.33 by 105 in / 109 by 2667 mm	4.33 by 105 in / 109 by 2667 mm

Specification	MT575D
Long bar rear axle	3.23 by 105 in / 82 by 2667 mm
Dimensions	Flange rear axle

Specification	MT595D	MT645D	MT655D	MT665D
Rear axle	4.33 by 118.2 in / 109 by 3002 mm	4.33 by 105 in / 109 by 2667 mm	4.33 by 105 in / 109 by 2667 mm	4.33 by 105 in / 109 by 2667 mm

Specification	MT645D	MT655D	MT665D
Front axle	4WD	4WD	4WD

Engine
Specification	MT595D	MT645E	MT655E	MT665E
Fuel tank	114 gal	166 gal	166 gal	166 gal
Exhaust fluid (DEF)	11 gal	15.8 gal	15.8 gal	15.8 gal

Specification	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Engine	AGCO Power 7.4L 6-cyl diesel	AGCO Power 8.4L 6-cyl diesel	AGCO POWER 8.4L 6-cyl diesel	AGCO Power 8.4L 6-cyl diesel	AGCO POWER 8.4L 6-cyl diesel	AGCO Power 8.4L 6-cyl diesel	AGCO POWER 8.4L 6-cyl diesel

Challenger MT595D Tires
Specification	MT595D
Standard tires (ag)	Front: 420/90R30 Rear: 480/80R46

Challenger MT645D Tires
Specification	MT645D
Standard tires (ag)	Front: 480/70R34 Rear: 520/85R46

Challenger MT655D Tires
Specification	MT655D
Standard tires (ag)	Front: 480/70R34 Rear: 520/85R46

Challenger MT665D Tires
Specification	MT665D
Standard tires (ag)	Front: 480/70R34 Rear: 520/85R46

Variants — Source comparison annotation
Source guide	Differing-field count reported
MT575D to MT665E	74

Ratios
Figure	MT575D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Engine horsepower per 1,000 lb of weight	11.8	9.9	10.1	10.9	11.1	12.0	12.2

Figure	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
PTO power as a share of engine power	83%	81%	85%	85%	85%	85%	86%	86%
Pump flow per engine horsepower	0.15 gpm	0.12 gpm	0.19 gpm	0.23 gpm	0.17 gpm	0.20 gpm	0.16 gpm	0.19 gpm

Figure	MT575D	MT645E	MT655E	MT665E
Hitch lift as a share of machine weight	74%	111%	111%	111%

Figure	MT595D	MT645E	MT655E	MT665E
Fuel tank per engine horsepower	0.48 gal	0.69 gal	0.63 gal	0.57 gal

Reference directory classification
Equipment group	tractor

MT575D to MT665E: forum references — Forum-title search
Forum index	Equipment class queried	Names in the search	Matching titles
TractorByNet and The Farming Forum	tractor	Challenger and the MT575D, MT645D. That is too few titles to say what owners mostly ask about, so the most recent are listed instead	2

Challenger Mt575d Fingertip Hydraulics Issue (TractorByNet, 2023-12-05)
Challenger Mt645d Radio Harness Plug (The Farming Forum, 2020-03-08)

Used market for the MT575D to MT665E — Dated first-page listing snapshot
Observation date	Listing source	Equipment search	Listings
2026-09-24	TractorHouse	Challenger tractor	15

Model	Listed	Model years	Lowest asking	Highest asking	Median asking	Median hours
MT575D	1	2012	$89,500	$89,500	$89,500	None shown
MT645D	4	2011 to 2013	$79,500	$104,800	$98,500	8,400
MT645E	2	2016 to 2018	$115,000	$169,500	$142,250	1,841
MT655E	2	2017	$158,000	$169,500	$163,750	1,604
MT665D	4	2012 to 2013	$79,900	$165,000	$129,500	2,550
MT665E	2	2016	$110,000	$110,000	$110,000	3,805

MT575D to MT665E: 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 MT575D, MT595D, MT645D, MT645E	No matching recall in this search

Sources for this page
Evidence class	Document, classification and recorded date
Reference site	Reference site: Challenger MT575D — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT595D — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT645D — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT645E — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT655D — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT655E — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT665D — TractorData. Observed 2026-09-24.
Reference site	Reference site: Challenger MT665E — TractorData. Observed 2026-09-24.
Forum threads	Forum threads: TractorByNet thread index for Challenger MT575D to MT665E — TractorByNet. Observed 2026-09-24.
Forum threads	Forum threads: The Farming Forum thread index for Challenger MT575D to MT665E — The Farming Forum. Observed 2026-09-25.
Used-market listings	Used-market listings: TractorHouse listings for Challenger MT575D — 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.

Challenger MT575D to MT665E: Configuration records

MT575D

Specification	Source figure
Engines
Engines	AGCO Power 6.6L 6-cyl diesel; AGCO Power 7.4L 6-cyl diesel
Power
PTO (claimed)	165 hp
Drawbar (tested)	168.77 hp
PTO (tested)	202.4 hp
Mechanical
Differential lock	electro-hydraulic full locking
Trailer brakes	hydraulic (optional)
Steering	hydrostatic power
Final drives	inboard planetary
Capacity
Fuel	114 gal
Hydraulic system	26.4 gal
Hydraulics
Pressure	2,900 psi
Valves	2 to 4
Total flow	29 gpm
SCV flow	24.3 gpm
Tractor hitch
Rear Type	III
Rear lift (at 24"/610mm)	12,500 lb (AutoPower)
Control	electronic lower link draft control
Drawbar	Cat. 2
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000
Dimensions & Tires
Front tire	420/85R28
Rear tire	480/80R42
Electrical
Ground	negative
Charging system	alternator
Charging amps	175
Batteries	2
Battery CCA	600
Battery volts	12
Engine Detail
Displacement	402.5 cu in
Bore/Stroke	4.252x4.724 in / 108 x 120 mm
Emissions	Interim Tier IV
Air cleaner	dual stage dry
Rated RPM	2100
Starter volts	12
Emission control	selective catalyitic reduction (SCR)
Compression	17.4:1
Starter	electric
Maximum Power	215 hp
Fuel system	electronic high pressure common rail
Pre-heating	thermostart
Transmission and speeds
Transmission	AutoPower VI
Gears	24 forward and reverse
Tires
Standard tires (ag)	Front: 420/85R28 Rear: 480/80R42
Dimensions and weight
Length	200.2 in
Height (cab)	120.8 in
Bar rear axle	3.23 by 80 in / 82 by 2032 mm
Shipping weight	17,000 lb
Max weight	27,560 lb
Long bar rear axle	3.23 by 105 in / 82 by 2667 mm
Additional specifications
Transmissions	24-speed six-speed power shift; continuously variable transmission
Engine	200 hp
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. AGCO System 150 (optional); AGCOMMAND (optional)
Exhaust fluid (DEF)	11 gal
Type	closed center load sensing (CCLS)
Capacity	26.4 gal
Clutch	electro-hydraulic
Wheelbase	117.8 in
Weight	17,000 lb
Engine Detail	AGCO Power; turbocharged intercooled diesel; 6-cylinder
Power	200 hp
Transmission options	24-speed six-speed power shift; continuously variable transmission
Engine options	AGCO Power 6.6L 6-cyl diesel; AGCO Power 7.4L 6-cyl diesel

Source

MT595D

Specification	Source figure
Power
PTO (claimed)	195 hp
Drawbar (tested)	177.8 hp
PTO (tested)	233.9 hp
Mechanical
Steering	hydrostatic power
Final drives	inboard planetary
Hydraulics
Pressure	2,900 psi
Valves	2 to 4
Total flow	29 gpm
SCV flow	24.3 gpm
Tractor hitch
Rear Type	III
Control	electronic lower link draft control
Drawbar	Cat. 2
Power take-off (PTO)
Rear PTO	independent
Dimensions & Tires
Front tire	420/90R30
Rear tire	480/80R46
Electrical
Ground	negative
Charging system	alternator
Charging amps	175
Batteries	2
Battery CCA	600
Battery volts	12
Engine Detail
Displacement	449.4 cu in
Bore/Stroke	4.252x5.276 in / 108 x 134 mm
Emissions	Interim Tier IV
Air cleaner	dual stage dry
Starter volts	12
Emission control	selective catalyitic reduction (SCR)
Starter	electric
Fuel system	electronic high pressure common rail
Transmission and speeds
Transmission	24-speed six-speed power shift
Gears	24 forward and reverse
Tires
Standard tires (ag)	Front: 420/90R30 Rear: 480/80R46
Dimensions and weight
Bar rear axle	4.33 by 86.7 in / 109 by 2202 mm
Rear axle	4.33 by 118.2 in / 109 by 3002 mm
Engine
Fuel tank	114 gal
Additional specifications
Engine	AGCO Power 7.4L 6-cyl diesel
Exhaust fluid (DEF)	11 gal
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. AGCO System 150 (optional); AGCOMMAND (optional)
Type	closed center load sensing (CCLS)
Clutch	electro-hydraulic
Engine Detail	AGCO Power; turbocharged intercooled diesel; 6-cylinder
Power	240 hp

Source

MT645D

Specification	Source figure
Power
Engine (gross)	240 hp
PTO (claimed)	205 hp
Drawbar (tested)	170.7 hp
PTO (tested)	250.8 hp
Mechanical
Differential lock	electro-hydraulic
Trailer brakes	pneumatic (optional)
Steering	hydrostatic power
Final drives	inboard planetary
Capacity
Fuel	167 gal
Hydraulic system	29.1 gal
Hydraulics
Pressure	2,900 psi
Valves	4 to 6
Total flow	46 gpm
SCV flow	26.4 gpm
Tractor hitch
Rear Type	III
Front Hitch	III (optional)
Front lift (at ends)	11,000 lb
Drawbar	Cat. 3
Rear lift	22,760 lb
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000/1000E (1.75)
Engine RPM	540E@1577
Dimensions & Tires
Front tire	480/70R34
Rear tire	520/85R46
Electrical
Ground	negative
Charging system	alternator
Charging amps	240
Batteries	2
Battery volts	12
Engine Detail
Displacement	513.8 cu in
Bore/Stroke	4.370x5.709 in / 111 x 145 mm
Emissions	Interim Tier IV
Power (gross)	240 hp
Rated RPM	2100
Starter volts	12
Emission control	selective catalytic reduction (SCR)
Compression	16.7:1
Starter	electric
Maximum Power	270 hp
Fuel system	electronic high-pressure common rail
Pre-heating	thermostart
Transmission and speeds
Transmission	continuously variable transmission
Gears	infinite forward and reverse
Tires
Standard tires (ag)	Front: 480/70R34 Rear: 520/85R46
Dimensions and weight
Length	215.7 in
Height (cab)	141 in
Shipping weight	24,250 lb
Rear axle	4.33 by 105 in / 109 by 2667 mm
Max weight	33,070 lb
Additional specifications
Engine	AGCO Power 8.4L 6-cyl diesel
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)
Exhaust fluid (DEF)	16 gal
Type	closed center load sensing (CCLS)
Capacity	29.1 gal
Clutch	electro-hydraulic
Wheelbase	122 in
Weight	24,250 lb
Engine Detail	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder
Front axle	4WD

Source

MT645E

Specification	Source figure
Power
PTO (claimed)	205 hp
Drawbar (tested)	209.1 hp
PTO (tested)	242.6 hp
Mechanical
Differential lock	electro-hydraulic
Steering	hydrostatic power
Hydraulics
Pressure	2,900 psi
Valves	4 to 6
Pump flow	54 gpm
Tractor hitch
Rear Type	III/IVN
Rear lift (at ends)	26,455 lb
Drawbar	Cat. 3
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000/1000E (1.75)
Electrical
Ground	negative
Charging system	alternator
Charging amps	240 (twin 120A)
Battery volts	12
Charging volts	12
Engine Detail
Displacement	512.6 cu in
Bore/Stroke	4.37x5.71 in / 111 x 145 mm
Emissions	Tier IV
Rated RPM	2100
Starter volts	12
Emission control	selective catalytic reduction (SCR)
Starter	electric
Maximum Power	270 hp
Transmission and speeds
Transmission	continuously variable transmission (CVT)
Gears	infinite forward and reverse (2-range)
Dimensions and weight
Length	218.6 in
Height (cab)	141 in
Bar rear axle	4.33 by 105 in / 109 by 2667 mm
Shipping weight	23,810 lb
Engine
Fuel tank	166 gal
Additional specifications
Engine	AGCO POWER 8.4L 6-cyl diesel
Exhaust fluid (DEF)	15.8 gal
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000
Type	closed center load sensing (CCLS)
Wheelbase	122 in
Weight	23,810 lb
Engine Detail	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve
Power	240 hp

Source

MT655D

Specification	Source figure
Power
Engine (gross)	265 hp
PTO (claimed)	225 hp
Drawbar (tested)	192.2 hp
PTO (tested)	276.7 hp
Mechanical
Differential lock	electro-hydraulic
Trailer brakes	pneumatic (optional)
Steering	hydrostatic power
Final drives	inboard planetary
Capacity
Fuel	167 gal
Hydraulic system	29.1 gal
Hydraulics
Pressure	2,900 psi
Valves	4 to 6
Total flow	46 gpm
SCV flow	26.4 gpm
Tractor hitch
Rear Type	III
Front Hitch	III (optional)
Front lift (at ends)	11,000 lb
Drawbar	Cat. 3
Rear lift	22,760 lb
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000/1000E (1.75)
Engine RPM	540E@1577
Dimensions & Tires
Front tire	480/70R34
Rear tire	520/85R46
Electrical
Ground	negative
Charging system	alternator
Charging amps	240
Batteries	2
Battery volts	12
Engine Detail
Displacement	513.8 cu in
Bore/Stroke	4.370x5.709 in / 111 x 145 mm
Emissions	Interim Tier IV
Power (gross)	265 hp
Rated RPM	2100
Starter volts	12
Emission control	selective catalytic reduction (SCR)
Compression	16.7:1
Starter	electric
Maximum Power	295 hp
Fuel system	electronic high-pressure common rail
Pre-heating	thermostart
Transmission and speeds
Transmission	continuously variable transmission
Gears	infinite forward and reverse
Tires
Standard tires (ag)	Front: 480/70R34 Rear: 520/85R46
Dimensions and weight
Length	215.7 in
Height (cab)	141 in
Shipping weight	24,250 lb
Rear axle	4.33 by 105 in / 109 by 2667 mm
Max weight	33,070 lb
Additional specifications
Engine	AGCO Power 8.4L 6-cyl diesel
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)
Exhaust fluid (DEF)	16 gal
Type	closed center load sensing (CCLS)
Capacity	29.1 gal
Clutch	electro-hydraulic
Wheelbase	122 in
Weight	24,250 lb
Engine Detail	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder
Front axle	4WD

Source

MT655E

Specification	Source figure
Power
PTO (claimed)	225 hp
Drawbar (tested)	217.2 hp
PTO (tested)	261.5 hp
Mechanical
Differential lock	electro-hydraulic
Steering	hydrostatic power
Hydraulics
Pressure	2,900 psi
Valves	4 to 6
Pump flow	54 gpm
Tractor hitch
Rear Type	III/IVN
Rear lift (at ends)	26,455 lb
Drawbar	Cat. 3
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000/1000E (1.75)
Electrical
Ground	negative
Charging system	alternator
Charging amps	240 (twin 120A)
Battery volts	12
Charging volts	12
Engine Detail
Displacement	512.6 cu in
Bore/Stroke	4.37x5.71 in / 111 x 145 mm
Emissions	Tier IV
Rated RPM	2100
Starter volts	12
Emission control	selective catalytic reduction (SCR)
Starter	electric
Maximum Power	295 hp
Transmission and speeds
Transmission	continuously variable transmission (CVT)
Gears	infinite forward and reverse (2-range)
Dimensions and weight
Length	218.6 in
Height (cab)	141 in
Bar rear axle	4.33 by 105 in / 109 by 2667 mm
Shipping weight	23,810 lb
Engine
Fuel tank	166 gal
Additional specifications
Engine	AGCO POWER 8.4L 6-cyl diesel
Exhaust fluid (DEF)	15.8 gal
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000
Type	closed center load sensing (CCLS)
Wheelbase	122 in
Weight	23,810 lb
Engine Detail	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve
Power	265 hp

Source

MT665D

Specification	Source figure
Power
Engine (gross)	290 hp
PTO (claimed)	250 hp
Drawbar (tested)	219.3 hp
PTO (tested)	298.9 hp
Mechanical
Differential lock	electro-hydraulic
Trailer brakes	pneumatic (optional)
Steering	hydrostatic power
Final drives	inboard planetary
Capacity
Fuel	167 gal
Hydraulic system	29.1 gal
Hydraulics
Pressure	2,900 psi
Valves	4 to 6
Total flow	46 gpm
SCV flow	26.4 gpm
Tractor hitch
Rear Type	III
Front Hitch	III (optional)
Front lift (at ends)	11,000 lb
Drawbar	Cat. 3
Rear lift	22,760 lb
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000/1000E (1.75)
Engine RPM	540E@1577
Dimensions & Tires
Front tire	480/70R34
Rear tire	520/85R46
Electrical
Ground	negative
Charging system	alternator
Charging amps	240
Batteries	2
Battery volts	12
Engine Detail
Displacement	513.8 cu in
Bore/Stroke	4.370x5.709 in / 111 x 145 mm
Emissions	Interim Tier IV
Power (gross)	290 hp
Rated RPM	2100
Starter volts	12
Emission control	selective catalytic reduction (SCR)
Compression	16.7:1
Starter	electric
Maximum Power	320 hp
Fuel system	electronic high-pressure common rail
Pre-heating	thermostart
Transmission and speeds
Transmission	continuously variable transmission
Gears	infinite forward and reverse
Tires
Standard tires (ag)	Front: 480/70R34 Rear: 520/85R46
Dimensions and weight
Length	215.7 in
Height (cab)	141 in
Shipping weight	24,250 lb
Rear axle	4.33 by 105 in / 109 by 2667 mm
Max weight	33,070 lb
Additional specifications
Engine	AGCO Power 8.4L 6-cyl diesel
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)
Exhaust fluid (DEF)	16 gal
Type	closed center load sensing (CCLS)
Capacity	29.1 gal
Clutch	electro-hydraulic
Wheelbase	122 in
Weight	24,250 lb
Engine Detail	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder
Front axle	4WD

Source

MT665E

Specification	Source figure
Power
PTO (claimed)	250 hp
Drawbar (tested)	232.7 hp
PTO (tested)	284.8 hp
Mechanical
Differential lock	electro-hydraulic
Steering	hydrostatic power
Hydraulics
Pressure	2,900 psi
Valves	4 to 6
Pump flow	54 gpm
Tractor hitch
Rear Type	III/IVN
Rear lift (at ends)	26,455 lb
Drawbar	Cat. 3
Power take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000/1000E (1.75)
Electrical
Ground	negative
Charging system	alternator
Charging amps	240 (twin 120A)
Battery volts	12
Charging volts	12
Engine Detail
Displacement	512.6 cu in
Bore/Stroke	4.37x5.71 in / 111 x 145 mm
Emissions	Tier IV
Rated RPM	2100
Starter volts	12
Emission control	selective catalytic reduction (SCR)
Starter	electric
Maximum Power	320 hp
Transmission and speeds
Transmission	continuously variable transmission (CVT)
Gears	infinite forward and reverse (2-range)
Dimensions and weight
Length	218.6 in
Height (cab)	141 in
Bar rear axle	4.33 by 105 in / 109 by 2667 mm
Shipping weight	23,810 lb
Engine
Fuel tank	166 gal
Additional specifications
Engine	AGCO POWER 8.4L 6-cyl diesel
Exhaust fluid (DEF)	15.8 gal
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000
Type	closed center load sensing (CCLS)
Wheelbase	122 in
Weight	23,810 lb
Engine Detail	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve
Power	290 hp

Source

Compare Challenger MT575D, MT595D, MT645D, MT645E, MT655D, MT655E, MT665D, MT665E

Power
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
PTO (claimed)	165 hp	195 hp	205 hp	205 hp	225 hp	225 hp	250 hp	250 hp
Drawbar (tested)	168.77 hp	177.8 hp	170.7 hp	209.1 hp	192.2 hp	217.2 hp	219.3 hp	232.7 hp
PTO (tested)	202.4 hp	233.9 hp	250.8 hp	242.6 hp	276.7 hp	261.5 hp	298.9 hp	284.8 hp

Mechanical
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Steering	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power	hydrostatic power
Mechanical	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)	Four-wheel drive; Hydraulic wet disc brakes; Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000

Hydraulics
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Type	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)	closed center load sensing (CCLS)
Pressure	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi	2,900 psi
Valves	2 to 4	2 to 4	4 to 6	4 to 6	4 to 6	4 to 6	4 to 6	4 to 6

Tractor hitch
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Rear Type	III	III	III	III/IVN	III	III/IVN	III	III/IVN
Drawbar	Cat. 2	Cat. 2	Cat. 3	Cat. 3	Cat. 3	Cat. 3	Cat. 3	Cat. 3

Power take-off (PTO)
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Rear PTO	independent	independent	independent	independent	independent	independent	independent	independent

Electrical
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Ground	negative	negative	negative	negative	negative	negative	negative	negative
Charging system	alternator	alternator	alternator	alternator	alternator	alternator	alternator	alternator
Charging amps	175	175	240	240 (twin 120A)	240	240 (twin 120A)	240	240 (twin 120A)
Battery volts	12	12	12	12	12	12	12	12

Engine Detail
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Displacement	402.5 cu in	449.4 cu in	513.8 cu in	512.6 cu in	513.8 cu in	512.6 cu in	513.8 cu in	512.6 cu in
Bore/Stroke	4.252x4.724 in / 108 x 120 mm	4.252x5.276 in / 108 x 134 mm	4.370x5.709 in / 111 x 145 mm	4.37x5.71 in / 111 x 145 mm	4.370x5.709 in / 111 x 145 mm	4.37x5.71 in / 111 x 145 mm	4.370x5.709 in / 111 x 145 mm	4.37x5.71 in / 111 x 145 mm
Emissions	Interim Tier IV	Interim Tier IV	Interim Tier IV	Tier IV	Interim Tier IV	Tier IV	Interim Tier IV	Tier IV
Emission control	selective catalyitic reduction (SCR)	selective catalyitic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)	selective catalytic reduction (SCR)
Starter	electric	electric	electric	electric	electric	electric	electric	electric
Starter volts	12	12	12	12	12	12	12	12
Engine Detail	AGCO Power; turbocharged intercooled diesel; 6-cylinder	AGCO Power; turbocharged intercooled diesel; 6-cylinder	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve	AGCO Power; turbocharged air-to-air intercooled diesel; 6-cylinder	AGCO POWER; turbocharged with air-to-air intercooler diesel; 6-cylinder 24-valve

Transmission and speeds
Specification	MT575D	MT595D	MT645D	MT645E	MT655D	MT655E	MT665D	MT665E
Transmission	AutoPower VI	24-speed six-speed power shift	continuously variable transmission	continuously variable transmission (CVT)	continuously variable transmission	continuously variable transmission (CVT)	continuously variable transmission	continuously variable transmission (CVT)
Gears	24 forward and reverse	24 forward and reverse	infinite forward and reverse	infinite forward and reverse (2-range)	infinite forward and reverse	infinite forward and reverse (2-range)	infinite forward and reverse	infinite forward and reverse (2-range)

More in Challenger: MT855C–MT975E, MT575B–MT685E, MT755C–MT945C.

Challenger MT575D to MT665E specifications

Sources for this page

Challenger MT575D to MT665E: Configuration records