| Type | 4-cycle, vertical, water-cooled |
| Cylinders | 12 V-type |
| Bore x Stroke | 155 x 180 |
| Displacement | 40.76 litres |
| Combustion system | Direct injection |
| Aspiration | Turbocharger + intercooler |
| Starting system | Electric starting motor (24V 8.0kW) |
| Cooling system | Heat exchanger |
Product Catalogue
12AYM-WET
![12AYM-WST 882kW [1200mhp]/1850rpm](https://pansar.com.my/wp-content/uploads/2015/10/yanmar-12AYM-WST-882kw.jpg)
12AYM-WST
882kW [1200mhp]/
1850rpm
![12AYM-WST 1030kW [1400mhp]/1900rpm](https://pansar.com.my/wp-content/uploads/2015/10/yanmar-12AYM-WST-1030kw.jpg)
12AYM-WST
1030kW [1400mhp]/
1900rpm
![12AYM-WET 1140kW [1550mhp]/1840rpm](https://pansar.com.my/wp-content/uploads/2015/10/yanmar-12AYM-WET-1140kw.jpg)
12AYM-WET
1140kW [1550mhp]/
1840rpm
