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12AYM-WGT

Main Engine 4-Stroke · Main Engines (4-Stroke)

Class-certified type (DNV register) · technical data sheet not yet verified
1340.0 kWPower
12Cylinders
Yanmar in the SpecCodex register — view brand page →

The 12AYM-WGT is the light-duty (L-rating) variant of Yanmar's 12-cylinder V-type 155x180 mm 12AY series, rated 1340 kW/1822 mhp at 1940 rpm for applications operating less than 2 hours continuously out of every 5 hours and under 2000 hours per year. It shares block, displacement and dry weight with the 12AYM-WET but is calibrated for a single high-output L-rating. IMO Tier II compliant via internal EGR with mechanical engine control.

Specifications

Technical data.verified

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Maximum output at crankshaft1340 kW@1940 rpm🔖
Displacement40.76 ltr🔖
Bore x stroke155 mm × 180 mm🔖
Cylinders12 V-type🔖
Starting systemElectric starting motor [DC 24V - 6.5 kW) × 2 or air motor × 2🔖
Flywheel housing sizeSAE #00, 21 inch🔖
Turbocharging systemExhaust gas turbocharger [with air cooler] TD13M1🔖
Cooling fresh water capacity211 ltr [jacket]🔖
Lubricating oil capacityMax.: 170 ltr Min.: 110 ltr [sump tank] [in engine piping line: 25]🔖
Lubricating oil gradeSAE40 or SAE15W-40🔖
Dry weight without gear4870 kg [without Fresh water cooler]🔖
Fuel consumption [at rated output]217 + 5% gr/kW hr [without marine gear]🔖
Rated power (kW)L:1340
Rated power hpL:1822
Speed (1/min)L:1940 (at flywheel)
Bore x stroke (mm)155 x 180
Displacement (l)40.76
Dry weight (kg)4950 (without marine gear)
EmissionsIMO Tier II
AspirationTurbocharged
CoolingConstant high temperature cooling system, fresh water capacity 225 L (jacket)
FuelDiesel, Cetane No.45, specific gravity 0.835 g/cc
Fuel consumptionL: 217 g/kWh at rated output (without marine gear)
LubricationWet sump, forced lubrication by gear pump; SAE40 or SAE15W-40; capacity max 170 / min 110 L
Starting systemElectric starting motor DC24V-8.0kW x2 or air motor x2
Gearbox optionsMGN924VY
Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

Marine diesel engine with V-type, vertical configuration and direct injection combustion system.

Applications

  • marine propulsion

Features

  • 12-cylinder
  • IMO Tier II compliant
  • Water-cooled
  • 4-stroke cycle

Standards

  • IMO Tier II Compliant
Yanmar 12AYM-WGT – Drawing (70da47b9eba3_S1-1 S. 1)
Drawing · 70da47b9eba3_S1-1 · S. 1
Source: Yanmar 12AYM-WGT datasheet, p. 1
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