Mercedes-Benz Arocs 3242 Used Trucks - Current Offers for Sale

Powertrain and Drivetrain Variants

The Mercedes-Benz Arocs 3242 is distinguished by its 8x4 rigid chassis and choice of two inline-six engines: the 10.7L OM 470 and 12.8L OM 471. Both deliver 310 kW (421 hp) and 2,100 Nm torque; the OM 470 prioritizes payload efficiency, while the OM 471 offers greater durability for harsh duty. Key engine technologies include X-Pulse common-rail injection with up to 2,700 bar local pressure and asymmetric turbocharging, optimizing torque from 900 rpm. The third-generation OM 471 features a 20.3:1 compression ratio, 250 bar peak ignition pressure, and low-viscosity oil management, reducing fuel consumption by up to 4% compared to its predecessor.

Transmission and Traction Systems

The standard transmission is the 12-speed PowerShift, with PowerShift Advanced improving shift speed and reducing torque interruption by 40%. Dedicated "Offroad" and "Power" modes tailor shift logic for rough terrain. Optional features include Hydraulic Auxiliary Drive (HAD), a hydraulically driven front axle input providing temporary traction with up to 40 kW per wheel, but with minimal weight penalty and parasitic loss compared to permanent AWD systems; and the Turbo Retarder Clutch (TRC), enabling clutchless starts and powerful primary retarder braking for steep descents under load.

Chassis, Frame, and Application-Specific Variants

Two frame widths—744 mm "narrow" for torsional flexibility, 834 mm "wide" for high center-of-gravity applications—allow configuration for diverse roles. Suspension options include parabolic steel leafs or rear air suspension with 8-bellow setup for variable ride height and load leveling. Loader and Grounder variants are optimized for extreme payload (kerb weight ~9,250 kg on Loader) or maximum durability (9 mm rails, reinforced mounts on Grounder). Wheelbases range from 4,250 mm up to 5,750 mm for various body lengths and axle layouts, including 8x4/4 and 8x4 ENA for enhanced maneuverability.

Cab, Digitalization, and Safety Technologies

Cab options span from 2.3m ClassicSpace and 2.5m BigSpace, with access via pivoting staircase steps and air-suspended Comfort seat. Digital interface is via the Multimedia Cockpit Interactive 2, with dual high-res displays and up to four camera feeds. MirrorCam replaces external mirrors, improving both aerodynamics and rear visibility. The 3242 is GSR II-compliant, offering standard Active Brake Assist 6, Active Sideguard Assist 2, Front Guard Assist, and Predictive Powertrain Control. Loader/Bodybuilder integration is streamlined by touch-based programmable switches and CAN bus connectivity.