Caterpillar will sell special bare chassis

The WTR configurations have unique standard and optional attachments specific to specialty applications like water trucks and they can be ordered with or without hoist cylinders. A variety of OEMs and body builders are available to Cat dealers and end-user customers for water tank acquisition and assembly. Water tank sizes and operating weight for Caterpillar’s trucks vary from 45,400 liters and 102,740 kilograms for 773G WTR model to 113,562 liters and 249,476 kilograms for 785D WTR models.