The JAC Refine K3 Heavy Duty 336HP 6X4 5.6m Dump Truck is built for regional contractors who need one truck to handle multiple heavy tasks—whether you’re hauling 15 tons of crushed stone to a suburban road resurfacing project, delivering steel beams to a 5-story commercial building site, or clearing concrete debris from an old downtown warehouse demolition. Powered by a Yuchai YC6MK336-60 diesel engine, it delivers 336 horsepower and 1350 N·m of torque at 1200-1800 rpm—enough to climb 15° rural slopes (common near quarries) with a full load, while avoiding the fuel inefficiency of over-powered 8X4 models. Paired with a Fast 10JSD160TA 10-speed manual transmission, it shifts smoothly between 60km/h provincial highways (to meet cross-town job deadlines) and slow, precise movement in crowded urban demo sites. The 6X4 drive setup and 5.73 rear axle ratio strike a perfect balance: traction for muddy construction paths, yet enough agility for 5.8-meter turning radius—letting it navigate downtown side streets tighter than most 6X4 dump trucks.​

What makes this model stand out for multi-task use is its 5.6m×2.35m×1.45m dump body and adaptable design. Constructed from Q690 high-strength wear-resistant steel, the body handles both sharp aggregates (like gravel) and heavy, solid loads (like steel) without damage, while its removable side extensions let you adjust capacity—drop them for bulky debris, keep them for dense materials. The hydraulic lifting system uses a single high-pressure pump to raise a full load in 24 seconds—fast enough to switch between morning aggregate runs and afternoon demo hauls—and includes a safety lock to prevent accidental lowering when parked on uneven sites. Underneath, a reinforced single-layer frame (280×80×12mm) with extra cross-braces absorbs shocks from mixed terrain (rural gravel to urban potholes), protecting the truck’s chassis during constant task switching. It also features heavy-duty rear tires (11.00R20) for durability on rough roads and a corrosion-resistant fuel tank to handle varying fuel quality across regions.​

For regional contractors watching budgets and productivity, the Refine K3 delivers clear value. Its 350L fuel tank covers 300+ km per fill—enough for 4-5 cross-town job stops—while the Yuchai engine’s optimized combustion keeps average consumption at 27-29L per 100km, 7% lower than comparable 336HP 6X4 dump trucks. Maintenance is streamlined for busy schedules: the engine uses 15,000km long-life oil, and common wear parts (air filters, brake pads) are widely available through global aftermarket networks—so repairs don’t delay job rotations. Inside the cab, driver comfort supports all-day multi-task shifts: an air-suspended seat with lumbar support (eases fatigue from mixed driving conditions), a 9-inch touchscreen with offline navigation (for rural job sites with spotty service) and reverse camera (for tight demo site parking), plus storage pockets for job tickets and tools. It’s the versatile, cost-smart workhorse that eliminates the need for multiple specialized trucks—keeping regional multi-task hauling efficient and profitable.​