Challenger MT645C - Horsepower, Weight, Specs, Problems, Price & More

The Challenger MT645C tractor is powered by a AGCO SISU POWER 8.4L 6-cyl diesel engine that provides of horsepower and 874lb-ft / 1185.1Nm torque. It has a drive configuration and a continuously variable transmission transmission.

• Engine
• Transmission
• Brakes
• Steering
• Common Problems
• What Users Like
• Technical Specifications

Engine

The engine is an AGCO SISU POWER 84CTA turbocharged intercooled diesel 6-cylinder liquid-cooled. It 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. The engine has a displacement of 512.6ci / 8.4L with a bore/stroke of 4.37x5.71inches / 111x 145mm. It has an Interim Tier 4 emission rating and uses selective catalytic reduction (SCR)/integrated exhaust gas recirculation optional (IECR) for emission control. The engine has a gross power output of 240hp / 179.0kW and a maximum power output of 270hp / 201.3kW. It uses an electronic high-pressure common rail fuel system with a compression ratio of 16.7:1. The engine is rated at 2200 rpm and has a torque output of 874lb-ft / 1185.1Nm at 1500 rpm. It has an electric starter with a voltage of 12.

Transmission

The transmission is a continuously variable transmission (CVT). No further details were provided in the .

Brakes

The brakes are hydraulic wet disc brakes. The tractor has four-wheel drive and power steering. The differential location is electro-hydraulic front and rear. The cab is standard with heat and air-conditioning. Optional features include a heated seat, power adjustable mirrors, and automatic temperature control. The tractor has a planetary final drive.

Steering

The steering is powered by an AGCO SISU POWER 8.4L 6-cylinder diesel engine. The fuel tank has a capacity of 155.9gal / 590.1L, or 182.3gal (without SCR) / 690.0L. The exhaust fluid (DEF) tank has a capacity of 7.9gal / 29.9L.

Common Problems

Users have reported issues with the hydraulic system, particularly with leaks and failures. Some users have also reported problems with the transmission, including slipping and difficulty shifting gears. Another common issue is with the electrical system, with some users experiencing problems with the starter and alternator. Additionally, some users have reported issues with the cab, including problems with the air conditioning and heating systems. Finally, some users have reported problems with the brakes, including issues with the hydraulic system and brake pads.

What Users Like

Users appreciate the power and performance of the AGCO SISU POWER engine, which provides ample power for a variety of tasks. They also like the comfortable cab, which is equipped with heat and air conditioning as standard features. The hydraulic system is also praised for its responsiveness and ease of use. Finally, users appreciate the tractor's four-wheel drive and power steering, which make it easy to maneuver in a variety of conditions. Overall, users find the Challenger MT645C to be a reliable and capable tractor for a variety of agricultural tasks.

Challenger MT645C Technical Specifications

Engine Detail
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
Displacemen	512.6ci / 8.4L
Bore/strok	4.37x5.71inches / 111x 145mm
Emission	Interim Tier 4
Emission Contro	selective catalytic reduction (SCR)/integrated exhaust gas recirculation optional (IECR)
Power (gross	240hp / 179.0kW
Maximum Powe	270hp / 201.3kW
Fuel Syste	electronic high-pressure common rail
Compressio	16.7:1
Rated Rp	2200
Torqu	874lb-ft / 1185.1Nm
Torque Rp	1500
Starte	electric
Starter Volt	12
Engine
Description	AGCO SISU POWER 8.4L 6-cyl diesel
Fuel Tan	155.9gal / 590.1L 182.3gal (without SCR) / 690.0L
Exhaust Fluid (def	7.9gal / 29.9L
Transmission
Description	continuously variable transmission
Mechanical
Description	Four-wheel drive Power steering Hydraulic wet disc brakes/Cab standard with heat and air-conditioning. Optional heated seat, power adjustable mirrors, and automatic temperature control
Final Drive	planetary
Differential Loc	electro-hydraulic front and rear
Tires
Standard Tires (ag	Front: 480/70R34. Rear: 520/85R46
Dimensions And Tires
Wheelbas	122.2inches / 310cm
Weigh	24250 to 25795 pounds
Front Tir	480/70R34
Rear Tir	520/85R46
Hydraulics
Typ	closed center load sensing
Pressur	2,901psi / 200.0bar
Valve	4 to 6
Pump Flo	26.4gpm / 99.9lpm
Total Flo	46.2gpm / 174.9lpm
Tractor Hitch
Rear Typ	III
Contro	electronic lower-link draft sensing
Rear Lift (at Ends	26,460lbs / 12002kg
Rear Lift (at 24	21,336lbs / 9678kg
Front Hitc	III
Front Lift (at Ends	11,020lbs / 4998kg
Electrical
Groun	negative
Charging Syste	alternator
Charging Amp	240 *Two 120A alternators
Batterie	2
Battery Cc	775
Battery Volt	12
Power Take Off Pto
Rear Pt	independent
Clutc	electro-hydraulic
Rear Rp	1000E / 1000 (1.75)/540E / 1000 (1.375)OptOptional
Front Pt	independent OptOptional
Front Rp	1000 (1.375)
Serial Location
Description	Serial number plate below the tractor cab door on the right side

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