Ranked second in frequency of use among traditional tractors most registered in 2024 within categories “B,” “C,” and “D,” the Farmotion 45 engine—designed and manufactured by the SDF Group—powers the brand’s mid-range tractors. Holding a 12.5% share of the analyzed segment, this four-cylinder engine from the Treviglio-based group meets the needs of Same and Deutz-Fahr tractors, and together with the smaller Farmotion 35 engines, accounts for a total share of just under 17%
Developed from the outset specifically for agricultural use, the Farmotion 45 features a four-cylinder inline layout with a total displacement of 3.849 liters, achieved with a 103 mm bore and a 115 mm stroke—yielding a 962 cc unit displacement and a stroke/bore ratio of approximately 1.12:1.
On high-performance models such as the Deutz-Fahr 6135C, the engine delivers a maximum output of 101 kW (137 hp) at 2,000 rpm, with a maximum torque of 576 Nm available at 1,600 rpm and remaining constant up to 1,800 rpm. The power delivered at torque peak exceeds 95% of the maximum output, ensuring a 39% torque reserve, which provides elasticity and steady performance even under variable loads.
The engine’s specific power is rated at 36 hp/liter, a figure achieved through a variable-geometry turbocharger controlled by a wastegate valve and supported by an air-to-air intercooler, ensuring fast, precise throttle response.
Fuel delivery relies on a common-rail direct injection system with seven-hole injectors operating at pressures up to 2,000 bar, providing efficient combustion, smooth torque modulation, and reduced emissions. The cylinder head and crankcase feature a modular design to ensure high structural rigidity and low noise levels even during extended operation.
Exhaust aftertreatment complies with Stage V standards through a compact integrated DOC–DPF–SCR module, featuring a urea dosing system and closed-loop electronic management
Title: Sdf Farmotion 45 engine: designed for agriculture
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