Upgrade your heavy-duty haul truck with the Caterpillar 307-9982 Transmission (3079982)—a powerful, factory-tested OEM transmission designed for the CAT 797B Truck (JSM) and CAT 797 Truck (5YW). Built to withstand the toughest mining conditions, this CAT transmission ensures peak performance, improved torque handling, and long-lasting durability in high-capacity hauling operations. The 307-9982 transmission is trusted across mining fleets for reliable, efficient drivetrain performance. Perfect for complete overhauls or direct replacements in CAT 797 series machines.