Mercedes-Benz Actros SLT drive configuration, approved for a maximum gross combination weight of 500 t, makes it a very rare sight indeed in the field of heavy-duty haulage. The Actros SLT 4160 8×6/4 is one of very few four-axle tractor unit with three driven and two steered axles. The all-wheel drive with the three driven axles and differential locks improves traction considerably compared with the 8×4 variant. The Mercedes-Benz OM 502 LA V8 16-litre turbocharged BlueTec 5 engine with charge-air cooling, delivers 447 kW/ 609 hp and a maximum torque of 2400 Nm at engine speeds between 1080 and 1800 rpm. The Actros SLT is equipped ex works with the largest radiator available. The Actros SLT heavy truck uses a Mercedes-Benz 16-speed G 240 range-change transmission with a WSK 400 torque converter clutch and retarder. The two-gear Mercedes-Benz VG 2400-3W transfer case with reduced-torque off-road ratio makes it possible to avoid gearshifts which entail an interruption of tractive force on slippery ground.
The L comfort cab is air sprung; the Actros 4160 SLT 8x6/4 has an additional leaf spring on each of the three axles, giving it a harder suspension than that of the series-production SLT. The cab is tailored to the needs of the heavy-load specialist. The cab therefore has ambient lighting, a CD music centre, air conditioning for hot climate zones and additional thermal insulation as well as the Webasto Air Top 2000 hot-air auxiliary heating system for cold climate zones.
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