Cat 798 Off-highway trucks tech specs

Overview

The Cat 798 (2019–2026) is an ultra-class off-highway dump truck designed for large mines where moving hundreds of tonnes per cycle is part of normal production. Its 623.69-ton operating weight and 372-ton payload give it serious hauling capacity, while the Cat C175-1 engine produces 2,539 kilowatts and 18,300 Nm of torque. The AC drive system suits repeated heavy-load operation, making the truck most relevant to mines with haul roads, loading equipment, and service infrastructure built around ultra-class machines.

Expert rating: 5 stars

Performance & Efficiency

The Cat C175-1 delivers 2,539 kilowatts and 18,300 Nm of maximum torque, giving the 798 the power required to move a 372-ton payload through demanding haul cycles. Its AC drive system manages power delivery under heavy loading, while a maximum forward speed of 64 km/h helps reduce travel time on longer haul roads. The body raises in 21 seconds and lowers in 22 seconds, keeping dumping cycles moving, while the hydraulic system operates at a 208.8 bar relief pressure.

In Comparison

Belaz 75710: Carries a larger 450-ton payload and has a higher 810-ton operating weight, making it the more extreme option for mines focused on maximum tonnes per trip.
Komatsu HD465: A much smaller off-highway truck that suits operations where easier deployment and lower overall machine scale matter more than ultra-class payload capacity.
Cat 798: Sits between these approaches with a 372-ton payload, 64 km/h maximum speed, and AC drive system aimed at large-scale production hauling.

Final Verdict

Rated 5 stars, the Cat 798 is a strong ultra-class mining truck within the AED 20,000,000–25,000,000 range. Its 372-ton payload, 2,539-kilowatt engine, 18,300 Nm of torque, and AC drive system make it best suited to major mining operations that can keep a machine of this scale consistently loaded, moving, and properly supported.