Challenger

Tracked tractor specialist Challenger has introduced three new models to its MT700D series.


Ranging from 335hp up to 382hp, the old Caterpillar engine has been ousted for a six-pot Sisu power plant in the new US-built tractors.


Challenger reckons the new SCR-treated 8.4-litre engine is more lightweight and quieter in work than the Cat version. In reality, using an engine from its fellow Agco brand is a logical move.


The change has also seen engine service interval extended to 400 hours and the maker reckons 10% fuel savings are possible.


Looks-wise there’s very little different, other than a new oval-shaped exhaust to minimise the impact of the catalytic converters on visibility.


Underneath, more durable mid-wheels are now standard and debris deflectors should reduce chipping and damage even in harsh conditions.


The company says the mid-wheels also have more durable bearings and larger bearing cups hold more lubrication oil.


Transmission-wise the hydraulic valves that control gear changes have been recalibrated, which is said to have improved comfort between shifts.


Challenger also points out that a new power strip in the cab will provide extra connection terminals for implements and other add-ons, and it has added an intermittent wiper position for those drizzly days.


The MT700D series will be available later this year.

































 Challenger MT700D Series:   
  MT745D MT755D MT765D
Engine: Sisu 8.4 litre e³ 8.4 litre e³ 8.4 litre e³
Rated Power*  @ 2,100rpm 306hp 327hp 350hp
Max. Power* @ 1,900rpm 335hp 358hp 382hp
Max torque* @ 1,500rpm 1,451Nm 1,540Nm 1,540Nm
* According to ECE R120