Tier 4 en­gine tech­nol­ogy in­cludes:

Earthmovers & Excavators - - Feature: Fuels & Lubricants -

Newly de­signed vari­able ge­om­e­try tur­bocharger

Newly de­signed diesel par­tic­u­late fil­ter (DPF)

Heavy duty high-pres­sure com­mon rail (HPCR) fuel in­jec­tion sys­tem

Larger more ro­bust cooled ex­haust gas re­cir­cu­la­tion (EGR) sys­tem

Re­designed com­bus­tion cham­ber at top of pis­ton

Har­mo­nized en­gine and ma­chine in­ter­face by elec­tronic con­trol sys­tem

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