|Type||Main battle tank|
|Place of origin||Iran|
|Weight||55 long tons (62 short tons; 56 t)|
|Length||7.5 m (24 ft 7 in) (hull)|
|Width||3.5 m (11 ft 6 in)|
|Height||2.9 m (9 ft 6 in)|
|120 mm rifled (L11A5)|
|2 x L7 machine gun|
The hull of the tank has been modified at the back and sides. The fuel tank has been replaced by a new, repairable one. The transmission has been changed so the tank's turret can rotate 360 degrees. Also, additional vibration dampening systems have been added to protect sensitive electronic components. Other modifications include a laser range finder, a more powerful engine and the addition of light amplifying and infra-red systems.
Iran upgrades its Chieftain tanks in Shahid Kolahduz Industrial Complex along with its T-72 tanks.