Video

Cat® 789 Mining Truck Rebuilds

OceanaGold has been operating at Macraes Mine in East Otago for over 30 years in an open pit and underground. Terra Cat has been a key business partner for the operation over these years. Recently Terra Cat partnered with OceanaGold Macraes to resurrect three Cat® 789C Trucks. Hear from the team involved in this major project and how they "keep the earthworks moving and keep the world turning."

OceanaGold Macraes

The Rebuild Journey of Cat Mining Trucks

The rebuild started with repairing the frames. The major change to the powertrain was the upgrade to the engine with the 789C 1,900 horsepower 3516B (69 litre) engine replaced with a Cat Reman 789D 2,100 horsepower 3516C (78.1 litre) high displacement engine. The torque converter, transmission and other powertrain components were rebuilt by Terra’s Component Rebuild Centre in Christchurch to match the engine output. Since their arrival at Macraes, the 789 units have proven the value of the rebuilds with excellent performance and a like-new feel to the truck.