Cat Presents First Commercially Available Autonomous Water Truck, the 789D

April 15, 2025

Caterpillar has revealed the 789D — the industry’s first commercially available autonomous water truck. The truck is built on the 789D mining truck chassis and integrates the truck, tank and Cat Water Delivery System (WDS), connected with Cat MineStar technology. It is designed to prevent haul road overwatering and underwatering by digitally tracking water consumption. Depending on the tank configuration, it can hold up to 43,588 gallons of water.

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