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Home›Engines›Yanmar 3TNE78A

Yanmar 3TNE78A Engine Engine

The Yanmar 3TNE78A is a 1.2 L 3-cylinder diesel / 4-stroke engine rated at 1800 rpm, producing up to 16.2 kW. It powers generator sets from Mase, including the IS9.5.

Also known as: Yanmar 3TNE78A

Part of the Yanmar 3TNE78A engine family — 2 variants share parts & fitment.

1.204 L
Displacement
3
Cylinders
1800 rpm
Rated speed
16 kW
Gross power

Engine specifications

Displacement1.204 L
Cylinders3
AspirationDiesel / 4-stroke
Rated speed1800 rpm
Gross power16 kW

Generator sets powered by this engine

1
Mase IS9.5

Parts cataloged across the Yanmar 3TNE78A family

62
Part #DescriptionCategory
129619-12520Outer Elementair_filter
119831-42290Drive Beltbelt
6-1001Control panelcontrol_panel
119810-55650Elementfuel_filter
119813-12110Intake Manifold Gasketgasket
119813-13110Exhaust Manifold Gasketgasket
119818-01330Cylinder Head Gasketgasket
119865-11310Bonnet Gasketgasket
121000-13201Silencer Gasketgasket
124240-01883Gasketgasket
124465-44950Gasketgasket
129150-32020Pump Gasketgasket
129150-35041Gasketgasket
129150-35111Gasketgasket
129150-42020Cooling Water Pump Gasketgasket
129150-49811Gasketgasket
129150-77511Gasketgasket
129155-52020Gasketgasket
129795-49551Gasketgasket
23414-100000Gasketgasket
719989-92600Gasket Setgasket
977770-01212Liquid Gasketgasket
119820-44560Hose, Radiator Inlethose
129619-12210Hosehose
171301-49010Hose, Radiator Inlethose
171301-49020Hose, Radiator Outlethose
41-0101274" Hose 5/16" ID Push-Onhose
119818-53000Nozzle Assemblyinjector
719800-53100Fuel Injectorinjector
24-07301Oil Filteroil_filter
22-40018Circuit Breaker 10 Ampother_service
22-42047Relay, SPDT 12 Volt 20/30 Ampother_service
119810-42001Coolant Pumppump
129001-32001Oil Pump Assemblypump
129100-52100Feed Pumppump
719989-51310Injection Pumppump
102103-55520O-Ringseal
104200-59170Sealing Washerseal
119810-01780Oil Sealseal
121850-51960O-Ringseal
124160-11340Valve Stem Sealseal
124950-11340Valve Stem Sealseal
129129-77350O-Ringseal
129150-42320O-Ringseal
129795-01800Oil Sealseal
15-01001Sealing Washerseal
22190-080002Seal Washerseal
22190-220002Seal Washer 22Sseal
24311-000120O-Ringseal
24311-000160O-Ringseal
24311-000320O-Ringseal
24311-240100O-Ringseal
24341-000240O-Ringseal
24341-000280O-Ringseal
24341-000500O-Ringseal
719810-01650Rear Main Seal Assemblyseal
119600-34800Oil Pressure Switchsensor
121250-44901Temperature Switch 110°Csensor
121460-39450Pressure Switchsensor
22-41016Pressure Sender 0 - 80 PSI Standard Groundsensor
22-45201Temperature Sender 250°F Standard Groundsensor
129155-49800Thermostatthermostat

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Aftermarket parts that fit this engine

60
4Pcs PartsGeek sinocmp $25.90 129102-53000 PartsGeek FridayParts $49.99 3TN75E PartsGeek yemparts $96.78 3TN82E PartsGeek yemparts $115.86 3TN84L PartsGeek sinocmp $66.00 3TNE78A PartsGeek yemparts $117.49 3TNE84 PartsGeek yemparts $32.89 3TNE88 PartsGeek yemparts $32.89 4TN82E PartsGeek sinocmp $99.00 4TN82L PartsGeek yemparts $115.86 4TNE88 PartsGeek yemparts $31.44 4TNE88L PartsGeek 3D78-1 PartsGeek yemparts $39.44 4D88E-3 PartsGeek yemparts $29.98 119653-77950 PartsGeek FridayParts $21.04 2TNV56 PartsGeek 2TNV70 PartsGeek yemparts $28.66 3TN66L PartsGeek yemparts $33.44 3TNE68 PartsGeek yemparts $28.66 3TNE82A PartsGeek sinocmp $71.00 3TNM68 PartsGeek yemparts $49.72 4TNV88 PartsGeek woodline $16.21 128300-77920 PartsGeek FridayParts $16.99 2TNE68 PartsGeek yemparts $28.66 2V750 PartsGeek yemparts $33.44 3TN100 PartsGeek yemparts $28.66 3TN84E PartsGeek yemparts $115.86 3TNA72E PartsGeek yemparts $33.44 3TNC78E PartsGeek yemparts $115.86 3TNE74 PartsGeek yemparts $32.22 119836-77200 PartsGeek FridayParts $108.00 3TNV82A PartsGeek yemparts $32.09 3TNV88 PartsGeek woodline $16.21 TB020 PartsGeek TB025 PartsGeek yemparts $128.04 TB030 PartsGeek TB035 PartsGeek yemparts $139.00 TB045 PartsGeek TB125 PartsGeek yemparts $37.13 TB135 PartsGeek yemparts $37.13 TB145 PartsGeek yemparts $37.13 TB53FR PartsGeek 114250-39450 PartsGeek FridayParts $11.50 3TNE78 PartsGeek yemparts $44.96 3TNE82 PartsGeek woodline $3.20 3TNV82 PartsGeek woodline $27.48 4TNV106 PartsGeek woodline $14.45 4TNV84 PartsGeek yemparts $32.89 4TNV94 PartsGeek woodline $7.07 4TNV98 PartsGeek woodline $1.88 129150-77202 PartsGeek 3TN82L PartsGeek yemparts $115.86 3TNV76 PartsGeek woodline $25.42 B15-3 PartsGeek kuduparts $174.00 AM880956 PartsGeek 729609-53200 PartsGeek FridayParts $79.00 119813-22300 PartsGeek 3TNC80L PartsGeek yemparts $115.86 3D78AE PartsGeek yemparts $32.21 3D82AE PartsGeek yemparts $29.98

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Filters for this engine

  • Air filter: Yanmar 12908712510 Yanmar 11965512560L Yanmar 12905112530 Donaldson P533597 Donaldson P821575 Donaldson P822686 Donaldson P822858
  • Fuel filter: Yanmar 11981055650 Donaldson P502166
  • Oil filter: Yanmar 11900535170 Yanmar 12915035170 Donaldson P502051 Donaldson P550162 Ac Delco X45

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

Common questions

What is the displacement of the Yanmar 3TNE78A?

The Yanmar 3TNE78A has a displacement of 1.204 liters with 3 cylinders.

Which generators use the Yanmar 3TNE78A engine?

The Yanmar 3TNE78A powers 1 generator set(s), including Mase IS9.5.