| Applicable Manufacturer | Yd General |
| Engine Model | 4TNV98-ZNSA2C |
| Equipment Type | Utility |
| Engine Type | Vertical In-line 4-cycle Water-cooled Diesel Engine |
| Combustion Chamber | Direct Injection Engine Type |
| Air Intake System | Natural Aspiration |
| Bore | 3.9 in. |
| Stroke | 4.3 in. |
| Displacement | 202.5 cu in. |
| Rated Speed | 2500 RPM |
| Specific Fuel Consumption | <= 248 ( 182) |
| Compression Ratio | 18.5 (effective 16.7) |
| Fuel Injection Timing | Fit 13.5+0.5/-0.5 Fir 2.5+0.5/-0.5 |
| Fuel Injection Pressure | Mpa (kgf/cm2 ) 21.6 +1.0/ 0 (220.3 +10.2/ 0.00) |
| Rotation Direction | Viewed From Flywheel Side Left |
| Governor | Electronic Yanmar Eco Governor |
| Cooling System | Radiator Cooling |
| Lubricating System | Forcible Lubrication By Trochoid Pump |
| Starter | Electric Startin(starting Motor 12vdc-2.3kw) |
| Charger | Ic Regualtor Built-in Engine Type (dc12v -55a) |
| Oil Capacity | 3.0 gal. 1.2 gal. |
| Coolant Capacity | 1.1 gal. |
| Flywheel | 351ID mark WT85 |
| Oil Press Switch | 7.3 psi |
| Fuel Filter | Water Separator |
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Sensei is a registered Sensei Spare Parts LLC brand that sells high-quality engine spare parts, covering the entire product line offered by Yanmar Diesel Engines&Kubota Engine.In 2025, Sensei added common rail injectors, spare parts, and test benches to its portfolio, and began operating in the automotive sector in addition to construction machinery and marine engines.
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