Trucks and heavy equipment MAN Truck The MAN TGX 18.440 is a heavy-duty tractor unit (truck head) with a 440 horsepower engine, 4x2 drive system, manual transmission, and air suspension. Key Technical Specifications: Engine: Diesel with 440 horsepower (324 kW). Drive System: 4x2 (rear-wheel drive). Transmission: Automatic or manual. Suspension: Front leaf spring and rear air suspension (bags) or full air suspension. Load Capacity: Environmental Standards: Available with Euro 5 or Euro 6 specifications. Cabin: Often comes with a comfortable sleeper cabin with air conditioning.