Challenger MT645B Engine


Challenger MT645B tractor photo
2005 - 2008
MT600B Series
Row-Crop tractor
Series map:
MT635B
MT645B
MT655B
215.0hp
235.0hp
260.0hp
Engine Detail
Sisu 74ETA
turbocharged diesel
6-cylinder 24-valve
liquid-cooled vertical inline
Displacement449 ci
7.4 L
Bore/Stroke4.251x5.278 inches
108 x 134 mm
Power235 hp
175.2 kW
Air cleanerdual paper elements
Pre-heating1000W coolant heater OptOptional
Compression17.5:1
Rated RPM2200
Starter volts12
Oil capacity20 qts
18.9 L
Coolant capacity35.6 qts
33.7 L
Page information
Contact: Peter Easterlund
Updated on October 21, 2022
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