Caterpillar updates articulated dump trucks with new engines and technology

The next generation Cat 725, 730, 730 EJ and 735 models will feature the Cat C13 engine, with power ratings from 257kW to 316kW. The engine meets global emissions standards, including EU Stage V and US EPA Tier 4 Final, and is designed to deliver improved fuel efficiency, with Caterpillar claiming a 14% efficiency gain for the 725 model compared with the previous version.

The trucks also include a number of operator-assist systems. A new Auto Wait Brake applies service brakes whenever the machine’s shifter is any position other than park and its speed reaches 0 kmh, while advanced automatic traction control prevents wheel slippage in poor conditions and Automatic Retarder Control has also been updated to manage braking and automatically adjust engine speed.

Separately, Dynamic Roll Protection, which works alongside Caterpillar’s existing Stability Assist, to warn operators of rollover risk and can automatically slow the machine in high-risk situations.

Improved payload technology has been upgraded with more accurate sensors to allow operators to view-real-time load weights, while external payload indicators alert the loading operator when they are approaching the rated payload and when payload is reached.

The 725, 730 and 735 also feature redesigned dump bodies intended to improve loading and reduce material carryback, while the 730 EJ features an ejector system for spreading loads without raising the body. Cat said this design is useful for load dispersal on inclines, side slopes, and in very soft underfoot conditions. It also allows machines to eject material in areas with low overhead clearance, or in tunnelling and underground conditions.

Operator comfort has been addressed with a redesigned interior, touchscreen controls and push-to-start with operator ID. Optional features include object detection and a multiview camera system, as well as an interactive Operator Coaching tool that provides training feedback and cycle data.

Production of the updated models will begin in January 2026 at Caterpillar’s Peterlee facility in the UK, which has manufactured articulated trucks since 1985. Machines will be supplied to customers worldwide.

Sherrie Williams, global product application specialist at Caterpillar, said, “Caterpillar’s latest machine design makes operating our next gen articulated trucks feel more comfortable, responsive, and user-friendly than ever. With the introduction of the Cat C13B engine on the 725, the improved power-to-weight ratio means it is up to 14% more efficient on our Tier 4 Final [and equivalent] machines.”