OceanaGold MacraesThe Rebuild Journey of Cat Mining TrucksThe 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.
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