The Fiat Fullback Extended Cab 2.4 (154 Hp) 4WD S&S, produced from 2016 to 2017, represents Fiat’s entry into the one-tonne pickup truck segment. Developed in collaboration with Mitsubishi Motors, the Fullback is essentially a rebadged version of the Mitsubishi Triton (L200). This model aimed to provide Fiat with a presence in a market where it had previously lacked a competitive offering, particularly in regions like South America, Africa, and Australia where pickup trucks are immensely popular. The “Extended Cab” configuration offered a compromise between cargo space and passenger comfort, featuring two doors and seating for four, with smaller rear seats suitable for occasional use. It sat within the Fullback lineup as a versatile option, positioned between the standard cab chassis models geared towards commercial use and the double cab versions focused on family transport.
Technical Specifications
| Brand | Fiat |
| Model | Fullback |
| Generation | Fullback Extended Cab |
| Type (Engine) | 2.4 (154 Hp) 4WD S&S |
| Start of production | 2016 |
| End of production | 2017 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Pick-up |
| Seats | 4 |
| Doors | 2 |
| Fuel consumption (combined) | 6.4 l/100 km (36.8 US mpg, 44.1 UK mpg, 15.6 km/l) |
| CO2 emissions | 169 g/km |
| Fuel Type | Diesel |
| Maximum speed | 169 km/h (105.01 mph) |
| Emission standard | Euro 5+ |
| Weight-to-power ratio | 11.7 kg/Hp, 85.3 Hp/tonne |
| Weight-to-torque ratio | 4.8 kg/Nm, 210.5 Nm/tonne |
| Power | 154 Hp @ 3500 rpm |
| Power per litre | 63.1 Hp/l |
| Torque | 380 Nm @ 2500 rpm (280.27 lb.-ft. @ 2500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 4N15 |
| Engine displacement | 2442 cm3 (149.02 cu. in.) |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 8.3 l (8.77 US qt | 7.3 UK qt) |
| Coolant | 7.7 l (8.14 US qt | 6.78 UK qt) |
| Kerb Weight | 1805 kg (3979.34 lbs.) |
| Max. weight | 2840 kg (6261.13 lbs.) |
| Max load | 1035 kg (2281.78 lbs.) |
| Fuel tank capacity | 75 l (19.81 US gal | 16.5 UK gal) |
| Permitted trailer load with brakes (12%) | 3000 kg (6613.87 lbs.) |
| Permitted trailer load without brakes | 750 kg (1653.47 lbs.) |
| Length | 5275 mm (207.68 in.) |
| Width | 1785 mm (70.28 in.) |
| Height | 1775 mm (69.88 in.) |
| Wheelbase | 3000 mm (118.11 in.) |
| Front track | 1520 mm (59.84 in.) |
| Rear track | 1515 mm (59.65 in.) |
| Front overhang | 865 mm (34.06 in.) |
| Rear overhang | 1410 mm (55.51 in.) |
| Ride height (ground clearance) | 200 mm (7.87 in.) |
| Minimum turning circle | 11.8 m (38.71 ft.) |
| Approach angle | 30° |
| Departure angle | 22° |
| Ramp-over angle | 24° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent coil spring |
| Rear suspension | Leaf spring |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 205/60 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The Fiat Fullback Extended Cab 2.4 utilizes Mitsubishi’s 4N15 2.4-liter four-cylinder diesel engine. This engine is a common rail direct injection (CRDI) unit, employing a turbocharger with an intercooler to boost power and efficiency. The 4N15 engine is known for its robust construction and relatively simple design, contributing to its durability. The engine produces 154 horsepower at 3500 rpm and 380 Nm (280 lb-ft) of torque at 2500 rpm. The engine features a cast iron block and aluminum cylinder head. The Start & Stop system, denoted by the “S&S” in the model name, automatically shuts off the engine when the vehicle is stationary to reduce fuel consumption and emissions. The transmission is a six-speed manual gearbox, chosen for its durability and suitability for work-oriented applications. The 4N15 engine is known for being a relatively noisy engine compared to some of its competitors, a characteristic common in diesel engines of this type.
Driving Characteristics
The 154 hp 2.4-liter engine, coupled with the six-speed manual transmission, provides adequate performance for typical pickup truck duties. Acceleration is not particularly brisk, but the engine delivers a usable amount of torque from relatively low engine speeds, making it suitable for hauling and towing. The manual transmission allows for precise control, especially when navigating challenging terrain or carrying a load. Compared to the higher-output engine options available in the Fullback range (which were not widely available in all markets), this variant prioritizes fuel efficiency and affordability over outright performance. The gear ratios are tuned for work, with a focus on providing sufficient pulling power rather than rapid acceleration. The 4WD system offers selectable modes, allowing the driver to switch between two-wheel drive for on-road efficiency and four-wheel drive for improved traction in off-road conditions.
Equipment & Trim Levels
The Extended Cab 2.4 4WD S&S trim level typically included standard features such as air conditioning, power windows, central locking, and an audio system with USB connectivity. Safety features included ABS brakes, driver and passenger airbags, and a reinforced cabin structure. Interior upholstery was typically vinyl or a durable cloth material. Optional extras could include alloy wheels, a rear differential lock, and a more advanced audio system. The interior design was functional and utilitarian, reflecting the truck’s work-oriented purpose. The “S&S” designation indicated the inclusion of the Start & Stop system as standard equipment.
Chassis & Braking
The Fullback Extended Cab utilizes a body-on-frame construction, providing a robust and durable platform for carrying heavy loads and traversing rough terrain. The front suspension consists of independent coil springs, while the rear suspension employs leaf springs, a traditional setup for pickup trucks. This configuration prioritizes load-carrying capacity and durability over ride comfort. The braking system features ventilated discs on the front wheels and drum brakes on the rear wheels. ABS (Anti-lock Braking System) is standard, enhancing braking performance and stability. The chassis is designed to withstand the stresses of off-road driving and heavy hauling.
Market Reception & Comparison
The Fiat Fullback was generally well-received as a capable and affordable pickup truck. Critics praised its robust construction, decent fuel economy, and competitive price point. However, some reviewers noted that the interior was somewhat basic compared to some of its rivals, and the engine could be noisy. Compared to other trims in the Fullback lineup, the 2.4-liter version offered a good balance between performance, fuel efficiency, and cost. It was a popular choice for buyers who needed a reliable workhorse without the expense of the more powerful engine options. Compared to competitors like the Toyota Hilux and Ford Ranger, the Fullback offered a more affordable entry point, but often lacked the brand recognition and refinement of those established players.
Legacy
The Fiat Fullback, while a relatively short-lived model, provided Fiat with a much-needed presence in the competitive pickup truck market. The 4N15 engine, in particular, has proven to be a durable and reliable unit, and examples continue to be found in use today. On the used car market, the Fullback Extended Cab 2.4 4WD S&S represents a relatively affordable option for buyers seeking a capable and practical pickup truck. Maintenance costs are generally reasonable, and parts availability is good, thanks to the shared components with the Mitsubishi Triton. However, potential buyers should be aware of the engine’s inherent noise and the relatively basic interior appointments.



