Scania R420 Used Trucks - Current Offers for Sale

Powertrain and Driveline

The Scania R420 is defined by its evolution from the 11.7L DC12 inline-six engine (420 hp, 2100 Nm) to the current 12.74L DC13 176 Super (420 hp, 2300 Nm at 900–1400 rpm). The Super variant achieves 50% BTE and employs a Twin-SCR system with dual AdBlue injection, eliminating the need for EGR. The G25CM automated Opticruise gearbox, featuring a lightweight aluminum housing and a lay-shaft brake, provides a 20.8:1 to 0.777:1 ratio spread and delivers up to eight reverse gears. Final drive options include the R756 rear axle, with ratios as fast as 1.95:1 for low-rpm highway cruising.

Chassis, Configurations, and Payload

The R420’s MACH platform allows a choice of 4x2 (dominant), 6x2 (with lift/tag), and 6x4 chassis, catering to regional and heavy-haul applications. Typical 4x2 units support front axles rated up to 8,500 kg, rear axles up to 13,000 kg, and a GVW of up to 19,000 kg. 6x4 variants enable GTW up to 78,000 kg (150,000 kg with hub reduction). Fuel capacity ranges from 600L (single tank) to 1,400L (dual tank). Air suspension is standard, with “Low Deck” configurations providing a fifth wheel height as low as 950 mm for high-volume trailer compatibility.

Cab Architecture and Ergonomics

Cabin options include the Normal Sleeper (1.85 m standing height), Highline (2.07 m), and legacy Topline (pre-2016). Highline and Topline cabs cater to long-haul comfort and storage. Interior setups offer extendable lower beds up to 1,000 mm wide and premium pocket spring mattresses. Controls cluster logically around the driver, emphasizing ergonomic access to the Opticruise selector and retarder.

Digital Systems and Safety

From 2024, the Smart Dash dual screen system with a C400 telematics unit delivers real-time diagnostics, predictive maintenance, and 4G/5G connectivity. Apple CarPlay, Android Auto, and navigation are integrated. The latest ADAS suite includes VRU detection, SSI, Driver Attention Support, TPM, and AEB. EBS/ABS braking, engine compression release brake (350 kW), and robust electronics complete the safety and operational intelligence of the model.