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                                                                                                                   TNV DI Series                  
                                                                                                         Industrial Diesel Engine
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                                                                                                 4TNV88-BDSA General Specification 
                                                                                                       47.0 HP (35.0 kW) @ 3000 rated rpm*  
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                                                                                             Type•  •  • 4 Cylinder, 4-Cycle, Liquid Cooled Diesel Engine 
                                                                                             Bore •  •  •  •  •  •  •  •  •  •  •  •  •  •  •  •   •  •  •  •  •  •   88 mm 
                                                                                             Stroke •  •  •  •  •  •  •  •  •  •  •  •  •  •  •  •   •  •  •  •  •   90 mm 
                                                                                             Displacement •  •  •  •  •  •  •  •  •  •  •  •   •  •  •  •  •    2.190 L 
                                                                                             Aspiration •  •  •  •  •  •  •  •  •  •  •  •   •    Naturally Aspirated 
                                                                                             Combustion System •  •  •  •  •  •  •    •  •   • Direct Injection 
                                                                                             Rotation (from flywheel end) • • •  •  •  • Counterclockwise 
                                                                                             Dry Weight  •  •   •  •   •  •   •  •   •  •  •   •  •  363 lbs (165 kg) 
                             Image shown may not be actual engine 
                                         Features                                                     Standard Engine Equipment 
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                                                                                               General 
            Clean Emissions                                                                      Intake & Exhaust Manifold 
              Building off the proven TNE design, Yanmar has                                     Muffler/Exhaust Pipe Gasket (shipped loose) 
              achieved superior exhaust emissions by improving the                              
              combustion chamber and fuel injection equipment                                  Lubrication System 
              design. Engines are compliant with EPA Intermediate                                7.4 L Capacity Deep Oil Pan, Side Drain 
              Tier 4 and EU stage III A exhaust emissions regulations.                           Trochoid Oil Pump 
                                                                                                 Paper Element Oil Filter 
            Reliable and Durable                                                                 Oil Pressure Switch 
              The TNV engines now proudly take up the running as                                 Crankcase Breather, Closed Type 
              Yanmar’s premium small industrial diesel. They offer                              
              even more enhanced durability due to better block                                Electrical System 
              cooling,  a stiffer crank and pistons, finer tolerance in the                      12V, 40 Amp Alternator  
              journal, and more. CAE analysis has brought lower                                  12V Starter Motor 
              vibrations and higher strength to the mounting structure                           Glow Plugs 
              for even better reliability in heavy-duty jobs.                                    Preheat Relay (shipped loose) 
                                                                                                 Preheat Timer (shipped loose) 
            Fuel Delivery and Economy                                                            Stop Solenoid Timer (shipped loose) 
              A newly designed, MP distributor type fuel injector pump                          
              is utilized to assure more precise fuel delivery and                             Fuel System 
              control. The result is reduced emissions, improved                                 Distributor Type MP2 Fuel Injection Pump 
              performance over a wide range of applications and good                             12V Electric Fuel Pump (shipped loose) 
              fuel economy which assures that Yanmar’s reputation for                            Paper Element Fuel Filter 
              superior starting characteristics continues.                                       Water Separator (shipped loose) 
                                                                                                 Stop Solenoid, Integral to Fuel Injection Pump  
            Noise Level Reduction                                                                 
               Yanmar’s original CAE techniques have optimized the                             Cooling System 
               stiffness, minimized transformation, and reduced radiant                          Water Pump, Belt Driven 
               noise in the cylinder block. Gear noise reduction is                              7-Blade, 380mm Cooling Fan—Puller Type 
               achieved through an improved gear tooth profile                                   71º C (160.0º F) Thermostat 
               resulting in less mechanical noise.                                               Temperature Switch 
                                                                                                 Fan Belt 
            Additional Information                                                              
              Yanmar America Corp              Distributed By:                                 Power Take Off 
              951 Corporate Grove Drive                                                          Flywheel, SAE 7 1/2” 
              Buffalo Grove, IL 60089                                                            Flywheel Housing, SAE #5 (124 mm deep) 
              www.yanmar.com                                                                     Aux Drive For a 9-tooth, SAE 2 bolt “A” Flange (optional) 
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                                                                                                  4TNV88-BDSA 
                                                                                                  Industrial Diesel Engine  
              Performance Data                                                        Dimensions 
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                                                                                                Length             28.5 in (726 mm) 
                                                                                                 Width             20.2 in (514 mm) 
                                                                                                Height             26.0 in (662 mm) 
                                                                                            Note: Dimensions depend on final specifications. 
              kW to Hp conversion used is expressed as: HP = (kW value) x 1.34  
                 Rated Speed (rpm)          Net rated kW        Net rated HP          Max. Torque (ft-lb) 
                         3000                    35.0                47.0             104.1 @ 1800 rpm 
              Ratings Definitions and Conditions 
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              *Rated power listed is NET engine output. The engine              Application standards for Yanmar industrial engines: Inlet 
              operating environment and driven machine conditions               air standard conditions with a total barometric pressure of 
              must be studied carefully when selecting an engine in             100kPa (29.5 in. Hg), with 30% relative humidity and 25°
              order to ensure correct engine selection, maximize                C (77°F).  
              engine performance, extend engine service life and                 
              improve machine capacity.                                          
               
              Consult the TNV Application Manual for additional en-
              gine ratings and engine application information. 
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                Materials and specifications herein are intended to serve as a guide in engine selection and subject to change without notice. 
                  The International System of Units (SI) is used in this publication. Yanmar and its logos, as well as corporate identity used 
                                         herein, are trademarks of Yanmar and may not be used without permission.  
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