Caterpillar's new articulated trucks: what's different?

Caterpillar has just announced its next generation of articulated trucks, the Cat 725, 730, 730 EJ, and 735, featuring smarter automation, upgraded safety systems, and redesigned dump bodies.

In this article, we break down the key upgrades to these new Cat articulated trucks, answer common questions, and compare specs to help you understand how they fit into modern jobsite demands.

What are the key upgrades in the new Cat articulated trucks?

Caterpillar's latest articulated trucks bring several improvements designed around operator convenience, safety, and payload efficiency. Some of the most notable upgrades include:

• Dynamic Roll Protection: works with Stability Assist to automatically slow the truck and prevent rollover in high-risk conditions.
• Auto Wait Brake (AWB): automatically applies service brakes when the machine is stopped, preventing unintentional movement.
• Redesigned dump body: offers higher payload efficiency, rerouted exhaust heat system to reduce carryback, and easier loading.
• Touchscreen control with jog dial: simplifies access to machine functions and stores up to 50 operator IDs.
• Payload monitoring technology: real-time load data on screen plus external indicator lights for loader operators.
• Operator Coaching: interactive training tool built into the display to improve skills and reduce inefficient practices.

These safety systems are designed not only to protect operators but also to reduce downtime and repair costs caused by avoidable accidents.

How do the new engines improve performance?

At the heart of these trucks is the Cat C13B engine, designed to balance power with global emissions compliance. Depending on the model, output ranges from 257 to 316 kW (345 to 424 hp).

Key technical advantages include:

• Improved power-to-weight ratio: up to 14% more efficient than previous generation trucks in Tier 4 Final configurations.
• No need for exhaust gas recirculation: simplifies the system and reduces maintenance.
• Global emissions compliance: meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014, and Korea Stage V standards.
• Traction and braking integration: automatic traction control prevents wheel slip, while Automatic Retarder Control (ARC) manages engine speed and braking for safer downhill handling.

For example, on steep terrain with wet surfaces, the integration of overspeed control and ARC reduces the risk of loss of traction, improving both safety and cycle times.

How do these trucks enhance operator safety?

Safety is one of the standout aspects of the new design. Caterpillar has introduced layered systems that work together to reduce risks on-site:

• Dynamic Rollover Protection warns operators with audible and visual alerts when lateral acceleration is dangerously high. It can also reduce fuel and apply brakes automatically.
• Stability Assist prevents hoisting on uneven ground.
• Dump body height limiter: allows operators to set height restrictions to avoid collisions with overhead structures.
• Object detection system with radar and multi-view cameras improves visibility around the truck.
• Hill Assist combined with Auto Wait Brake prevents rollback during uphill starts.

These safety features not only reduce accidents but also minimize costly downtime and repair work.

How does the Cat 730 EJ differ from standard models?

The Cat 730 EJ is an ejector truck, which means it can unload material without raising the body. This design is especially useful in:

• Landfills and soft ground: maintains stability by keeping the body low.
• Underground sites or tunnels: can eject loads under overhead restrictions.
• Inclined terrain: reduces rollover risks by keeping the center of gravity lower.
• Spreading applications: allows material to be spread on the go, reducing the need for a bulldozer.

For contractors working in confined spaces or on unstable ground, the 730 EJ can replace multiple machines in the cycle, saving time and equipment costs.

How do the payload and body design changes improve efficiency?

One of the most critical aspects of any articulated truck is how efficiently it moves material. Caterpillar redesigned the dump body with these goals:

• Reduced carryback: exhaust heat rerouting prevents material from sticking.
• Easier loading: new shape and dimensions allow faster bucket placement by excavators or wheel loaders.
• Payload accuracy: built-in load sensors give precise weight readings.
• External lights: communicate payload status to loading operators, cutting down on overloading risks.

For instance, pairing a Cat 966L wheel loader with the new Cat 735 truck creates a highly efficient loading cycle with fewer under- or over-loaded hauls.

Next gen Cat articulated truck specifications (725, 730, 730 EJ, 735)

This table highlights how Caterpillar designed a lineup suitable for different jobsite requirements, from mid-size hauling (725) to higher capacity and ejector functionality (730 EJ and 735).

Cat 735 specs at a glance

Since the 735 sits at the top of this new articulated truck lineup, here's its full spec set in one place: Cat C13A/B engine producing 298 to 316 kW (400 to 424 hp), a 32-tonne (35.2 US ton) payload capacity, 20 m³ heaped capacity, 3 axles, and 6x6 drive. It's the model best suited for contractors who need the highest capacity in this new range without stepping up to a rigid mining truck.

How does Operator Coaching improve productivity?

Operator skill levels vary widely, and Caterpillar is tackling this challenge with the Operator Coaching tool. It monitors 14 key behaviors such as:

• Hoisting on level ground.
• Cornering speeds.
• Gear selection on grades.
• Speed in rough conditions.

The system provides on-screen tips and animated tutorials to improve habits. Fleet managers also benefit from GPS-linked reports showing where issues occur.

Over time, this coaching reduces wear on heavy equipment, improves fuel efficiency, and lowers accident risk.

Which articulated trucks have the lowest downtime, based on owner reports?

There isn't a single definitive, publicly available ranking across brands based on owner-reported downtime, so treat any specific brand-vs-brand ranking with caution. That said, a few factors reliably correlate with lower downtime across articulated trucks generally, and the new Cat lineup addresses several of them directly:

• Simpler emissions systems (no exhaust gas recirculation on the new C13B) mean fewer components that can fail or need servicing.
• Longer service intervals for transmission and engine components directly reduce planned downtime.
• Built-in diagnostics and payload monitoring catch issues (like consistent overloading, a major driver of unplanned failures) before they cause a breakdown.
• Dealer network strength and parts availability in your specific region often matters more than the brand's general reputation, a great truck with a thin local parts network will still have more downtime than a merely good truck with strong local support.

If low downtime is a priority, ask any dealer for actual regional service data and average repair turnaround, rather than relying on general brand reputation alone.

Comparison: How does the Cat 730 stack up against Volvo A40G?

A popular competitor in the articulated truck market is the Volvo A40G.

While the Volvo A40G serves a higher payload class, the Cat 730 is better suited for mid-size applications, particularly when operator safety and cycle-time efficiency are priorities.

What applications are best suited for the new Cat articulated truck?

• Mining: moving overburden and raw material.
• Infrastructure projects: road construction, bridge works, and earthmoving.
• Landfills and tunneling: particularly with the 730 EJ ejector.
• Heavy construction: transporting aggregates, sand, and soil across large sites.

Contractors working on jobsites with soft terrain, tight spaces, or strict safety standards will benefit most from this machine's advanced features.

When will the next-gen Cat articulated trucks be available?

Caterpillar has confirmed that production of the next-gen articulated trucks will begin in January 2026 at its Peterlee facility in the UK, which has been producing articulated haulers since 1985.

These machines will be supplied to global markets, and availability will expand through Caterpillar's dealer network.

For those looking to explore articulated dump trucks, makana.com provides detailed listings, inspection reports, and expert reviews to help buyers evaluate whether heavy machines from popular brands like Cat or Volvo fit their project.

FAQs

What is the difference between an articulated truck and a rigid dump truck?

Articulated trucks have a joint between the cab and body, giving them flexibility on rough or uneven ground. Rigid dump trucks are more suited for high-capacity mining and long, straight hauls.

How does Automatic Retarder Control (ARC) help operators?

ARC automatically adjusts engine speed and braking on downhill grades, improving safety and reducing stress on the braking system.

Can the new Cat 735 handle soft terrain?

Yes, with its 6-wheel drive and improved traction control, the Cat 735 can work effectively in muddy or uneven conditions.

What maintenance advantages come with the new trucks?

Longer service intervals for transmission and engine components reduce downtime and lower overall maintenance costs.

Is the Cat 730 EJ suitable for tunneling projects?

Yes, its ejector body allows material unloading without raising the bed, making it effective in tunnels and other areas with limited overhead clearance.

Which articulated trucks have the lowest downtime?

There's no single verified public ranking across brands, but simpler emissions systems, longer service intervals, built-in diagnostics, and strong local dealer support are the factors that consistently correlate with lower downtime, all of which the new Cat lineup addresses directly.