Japanese Engine Engineering and High Backup Torque
Solis Yanmar tractors are powered by Japanese-designed 3-cylinder and 4-cylinder direct-injection and common-rail diesel engines delivering 40 HP to 50 HP output.
Engineered with high displacement and optimized combustion chambers, these powertrains deliver substantial low-end backup torque, enabling uninterrupted pulling through tough black cotton soils and heavy paddy mud without engine lugging.
- Engine power: Models spanning 40 HP, 42 HP, 45 HP, and 50 HP (e.g. Solis 4215, 4515, 5015, YM 342A, YM 348A)
- Fuel delivery: High-pressure direct injection delivering complete fuel atomization and diesel economy
- Cooling system: Liquid-cooled with large radiator and dry-type dual-element air filter
- Vibration dampening: Japanese dynamic engine balancing minimizing operator fatigue during prolonged shifts
Synchro-Shuttle Transmission and 4WD Performance
A key feature of the Solis Yanmar platform is the smooth synchromesh transmission with steering-column-mounted forward-reverse shuttle shift.
Operators switch between forward and reverse in the same gear ratio without touching the main gear selector. Available heavy-duty 4WD front drive axles with planetary reduction gears deliver traction in submerged wetland rice puddling.
- Transmission options: 10 Forward + 5 Reverse or 12 Forward + 12 Reverse full synchromesh gearboxes
- Shuttle shift: Fast forward-reverse directional control for loader, dozer, and field headland operations
- 4WD traction: Bevel-gear front axle delivering tight turning radiuses and high drawbar grip in mud
- PTO system: Dual-speed independent PTO (540 standard and 540 Economy / Reverse PTO)
Precision Hydraulics and Implement Compatibility
Fitted with high-precision hydraulic lift systems providing 1,800 to 2,000 kg capacity, Solis Yanmar tractors feature automatic depth and draft control (ADDC) sensors that maintain working implement depth.
The robust chassis easily handles 7-foot rotavators, hydraulic reversible MB ploughs, laser land levelers, and heavy agricultural haulage trailers.
- Lift capacity: 1,800 kg to 2,000 kg rear three-point linkage capacity
- Hydraulic controls: Advanced ADDC system with external auxiliary hydraulic spool valves
- Brakes and steering: Multi-disc oil-immersed brakes paired with hydrostatic power steering
- Implement pairing: Heavy rotavator, subsoiler, reversible plough, laser leveler, and tipping trailer
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Common questions
What is the collaboration behind Solis Yanmar tractors?
Solis Yanmar is a partnership between International Tractors Limited (manufacturers of Sonalika) in India and Yanmar Holdings of Japan.
What is the primary benefit of the shuttle shift on Solis Yanmar tractors?
The shuttle shift allows the operator to switch instantly between forward and reverse in the same gear ratio without clutching or shifting main gear levers.
Are Solis Yanmar tractors suitable for wetland paddy puddling?
Yes, their sealed waterproof 4WD front axles and high-traction tires make them suited for wetland paddy puddling without sinking.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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