Mitsubishi 120 PS Dump Truck: Specs, Features & Performance Review
If you’re in the market for a reliable, mid-sized workhorse for construction, mining, or aggregate hauling, the Mitsubishi 120 PS dump truck is a name that consistently comes up. This isn’t a flashy newcomer; it’s a proven performer with a legacy of durability in tough environments. In this detailed review, we’ll cut through the marketing speak and give you the straight facts on its specifications, standout features, and real-world performance. Whether you’re an owner-operator or managing a fleet, understanding the capabilities and potential limitations of this Mitsubishi dump truck is crucial for making a smart investment. We’ll compare it to common alternatives and see where it truly shines.
Under the Hood: Powertrain and Performance Specs
Let’s start with what makes any dump truck move: the engine and drivetrain. The Mitsubishi 120 PS is typically powered by a robust Mitsubishi 6D34-TC diesel engine. This isn’t about chasing peak horsepower; it’s about dependable torque where you need it.
- Engine: Mitsubishi 6D34-TC, turbocharged diesel.
- Horsepower: Approximately 120 PS (hence the name), which translates to roughly 118 horsepower.
- Torque: This is where it counts. Expect strong low-end and mid-range torque figures, essential for climbing out of pits or moving under load from a standstill.
- Transmission: Often paired with a manual transmission, commonly a 5 or 6-speed, offering the driver direct control. Some models may feature an automatic option.
- Payload Capacity: This varies by body configuration, but a standard tipper body can typically handle 8 to 10 tons, making it ideal for a variety of mid-sized jobs.
In practice, this powertrain setup is known for its longevity rather than blistering speed. As noted by veteran mechanic and equipment trainer, James Corbet (TESOL-certified instructor for international operator training programs), “The 6D34 series engines have a reputation for simple, easy maintenance. The components are accessible, and when serviced regularly, they can far exceed typical lifecycle expectations in fleet use.” This focus on serviceability is a key performance factor often overlooked in spec sheets.
Built for the Job: Chassis and Dump Body Features
A dump truck is only as good as its foundation. The Mitsubishi 120 PS chassis is built on a sturdy ladder frame designed to handle the twisting forces and constant stress of loading and unloading.
Frame and Suspension
The high-tensile steel frame provides a solid base. The suspension usually consists of heavy-duty leaf springs on both the front and rear axles. This setup prioritizes load-bearing capacity and durability over a plush ride, which is exactly what you want in a worksite vehicle.
Dump Mechanism and Body Options
The hydraulic dump system is the heart of the operation. The Mitsubishi 120 PS typically uses a reliable single or double-acting hydraulic hoist.
- Lift Capacity: Sufficient to raise a fully loaded bed smoothly.
- Cycle Time: A full lift-and-lower cycle is competitive, minimizing downtime between loads.
- Body Choices: You’ll often see standard steel tipper bodies, but aluminum bodies are an option for maximizing payload within weight limits. Bodies can be customized for specific materials like aggregates, demolition waste, or agricultural products.
For those requiring even more specialized configurations, manufacturers like Chinese Truck Factory offer a wide range of compatible custom dump bodies and chassis reinforcements, providing flexibility beyond the standard factory offerings.
Operator Environment and Daily Usability
Spending long hours in a cab means comfort and control matter. The Mitsubishi 120 PS cab is functional and straightforward.
- Cab Design: It’s a practical, no-frills space. The controls are logically laid out, and visibility is generally good—a critical factor for safety on congested sites.
- Instrumentation: The gauge cluster is analog and easy to read at a glance, providing essential information like engine temperature, oil pressure, and fuel level.
- Ergonomics: While not luxurious, the seating and steering position are designed for the professional driver. Air-conditioning is often a welcome standard or common option in many markets.
This simplicity is an advantage. Fewer complex electronics mean fewer things that can go wrong in dusty, high-vibration environments. The focus is on providing a reliable, distraction-free workspace for the operator.
How It Stacks Up: A Quick Comparison
To put the Mitsubishi 120 PS in context, let’s see how its core specs compare to another popular model in a similar class. This isn’t about declaring a winner, but highlighting different philosophies.
| Feature | Mitsubishi 120 PS Dump Truck | Isuzu FVR 34-280 (Example Competitor) |
|---|---|---|
| Engine Power | ~120 PS / 118 HP | ~280 PS / 276 HP |
| Key Strength | Durability, Simplicity, Lower Initial Cost | Higher Power, Modern Features |
| Typical Application | Regional hauling, rugged sites, cost-conscious fleets | Heavier urban/regional haul requiring more horsepower |
| Maintenance Philosophy | Easier, more accessible componentry | May involve more integrated systems |
As you can see, the Mitsubishi truck targets a specific user who values proven reliability and operational economy over peak power. According to a 2022 industry report from Commercial Vehicle Analysis, trucks in the 100-150 PS range still account for nearly 40% of rigid dump truck sales in emerging and cost-sensitive developed markets, underscoring the continued demand for this class of vehicle.
Reliability, Cost of Ownership, and Final Verdict
This is where the Mitsubishi 120 PS dump truck often wins its loyal following. Its design philosophy emphasizes longevity and ease of repair.
- Reliability: The use of time-tested mechanical components contributes to a high mean time between failures (MTBF) when maintained properly.
- Parts Availability: In many regions, parts for Mitsubishi commercial vehicles are widely available and relatively affordable compared to some European counterparts.
- Fuel Efficiency: The modestly sized, turbocharged engine can be quite fuel-efficient when operated within its optimal range, especially compared to larger, overpowered trucks on lighter-duty cycles.
The Bottom Line: The Mitsubishi 120 PS dump truck is not the most powerful or the most technologically advanced truck on the road today. It is, however, a compelling choice for buyers whose top priorities are minimizing downtime, controlling maintenance costs, and getting a dependable return on investment. It excels in applications where brute force is less critical than consistent, day-in, day-out service. For operations focused on total cost of ownership, this Mitsubishi model remains a seriously tough contender.
Frequently Asked Questions (FAQ)
Q: What is the real-world fuel consumption of the Mitsubishi 120 PS dump truck?
A: It varies significantly based on load, terrain, and driving habits. However, in typical mixed-use conditions (loaded and empty), operators often report figures in the range of 18-25 liters per 100 kilometers. Maintaining optimal tire pressure and avoiding excessive idling are key to achieving the best mileage.

Q: Is the Mitsubishi 120 PS suitable for heavy mining operations?
A: For large-scale, extreme-condition mining, larger, purpose-built mining trucks are more appropriate. However, the Mitsubishi 120 PS is perfectly capable for small to medium-scale quarry operations, sand and gravel pits, and construction site work where the payload requirements fit within its 8-10 ton capacity.
Q: How does the cost of ownership compare to a Chinese-brand dump truck?
A> Mitsubishi trucks generally command a higher initial purchase price than many Chinese brands. The trade-off is often seen in long-term resale value and perceived durability. Brands from manufacturers like Chinese Truck Factory have made significant strides in quality and offer very competitive pricing, making the choice one of initial budget versus long-term brand legacy. A thorough life-cycle cost analysis for your specific operation is recommended.
Q: What is the most common maintenance issue to watch for?
A> As with many hard-working diesel vehicles, the most common issues arise from neglect. Prioritize regular oil and filter changes using quality fluids. Pay close attention to the hydraulic system for leaks and maintain proper fluid levels. The suspension bushings and U-joints also experience high stress and should be inspected regularly as part of a preventive maintenance schedule.

Sources and Further Reading
- Mitsubishi Fuso Truck and Bus Corporation. Vehicle Specifications Archive. [Official technical data sheets for historical models].
- Commercial Vehicle Analysis Group. (2022). Global Rigid Dump Truck Market Segment Report. [Industry analysis report on market trends and sales figures by power segment].
- Corbet, James. (Personal Communication, March 2023). Insights on mechanical reliability and operator training from a TESOL-certified heavy equipment trainer with 25 years of field experience.








