Construction Machinery: Articulated Hauler Hitachi

Model	Transmission type
AH500D	Allison HD4500R ORS Fully automatic planetary transmission with integrated retarder
AH400D	Allison HD4500R with integrated retarder
AH350D	Allison HD4500R ORS with integrated retarder
AH300D	ZF 6 HP592C with integrated retarder
AH250D	ZF 6 HP592C with integrated retarder