AY SERIES

【6AY】

  • (6AYAM-ET)Confirm to IMO NOx Tier2 and EPA Tier3 emissions regulations
    (Others)Confirm to IMO NOx Tier2 emissions regulations
  • 6-cylinder, direct injection, heat exchanger cooling.
  • Turbocharger + intercooler.
  • 4-valves per cylinder for higher combustion efficiency.
  • Available either with marine gear or without marine gear

【12AY】

  • Conform to IMO Tier ll emissions regulations.
  • V-type, 12-cylinder, direct injection, heat exchanger cooling.
  • Turbocharger + intercooler.
  • 4-valves per cylinder for higher combustion efficiency.

Main Data

Specifications

Model 6AYM-ET
Continuous-rating		 6AYM-WST
Continuous-rating		 6AYM-WET
Continuous-rating
・M-rating		 6AYM-WGT
L-rating
Number of cylinders 6 in-line
Bore × stroke [mm] 155 × 180
Displacement [lit.] 20.379
Rated Output [kW(mhp)/min-1] C : 555(755)/1840 C : 485(659)/1900 C : 555(755)/1840 L : 670(911)/1938
M : 610(829)/1900
Combustion system Direct injection
Aspiration Turbocharger + intercooler
Starting system Electric starting motor (24V 7.0kW)
Cooling system Keel cooling
(optional Heat exchanger)		 Heat exchanger
Size of flywheel housing and flywheel SAE #0 and 18 in.
Dry mass [kg] 2295
(without marine gear)		 2365 (without marine gear)
Dimensions (L×W×H) [mm] 1949×1274×1544 2000×1305×1431
Model 12AYM-WST
H-rating		 12AYM-WET
H-rating・M-rating		 12AYM-WGT
L-rating
Number of cylinders 12 V-type
Bore × stroke [mm] 155 × 180
Displacement [lit.] 40.76
Rated Output [kW(mhp)/min-1] H : 882(1199)/1850 H : 1140(1550)/1840 L : 1340(1822)/1940
H : 1030(1400)/1900 M : 1220(1659)/1900
Combustion system Direct injection
Aspiration Turbocharger + intercooler
Starting system Electric starting motor (24V-8.0kW)×2 or air motor×2
Cooling system Constant high temperature cooling system
Size of flywheel housing and flywheel SAE #00 and 21 in.
Dry mass [kg] 4950 (without marine gear)
Dimensions (L×W×H) [mm] 2759×1644×1707

Marine Gear Specifications

Engine model : 6AYAM-ET C-rating
Model YXH-240 YXH-240L
Type Hydraulic multi-disc clutch
Reduction ratio (Ahead) 1.95 2.27 2.56
3.03 3.48		 4.13 4.48 4.89 5.36
5.91 6.57 6.95
Direction of rotation
(propeller shaft)		 Clockwise or counterclockwise
Dry weight [kg] 632 1240
Engine model : 6AYM-WST C-rating
Model YX-181 YX-180L KM-200BL YXH-240L
Type Hydraulic multi-disc clutch
Reduction ratio (Ahead) 2.08 2.55 3.03 3.50 4.00 4.54 4.13 4.48 4.89 5.36
5.91 6.57 6.95		 4.13 4.48 4.89 5.36
5.91 6.57 6.95
Direction of rotation
(propeller shaft)		 Clockwise or counterclockwise
Dry weight [kg] 560 680 1240 1240
Live PTO - - SAE B-B, B, C-C, C -
Engine model : 6AYM-WET C-rating M-rating
Model YXH-240 YXH-240L KM-300BL YXH-240 YXH-240L
Type Hydraulic multi-disc clutch
Reduction ratio (Ahead) 1.95 2.27 2.56
3.03 3.48		 4.13 4.48 4.89 5.36
5.91 6.57 6.95		 5.11 5.60 6.17 6.50 1.95 2.27 2.56
3.03 3.48		 4.13 4.48 4.89 5.36
5.91 6.57 6.95
Direction of rotation
(propeller shaft)		 Clockwise or counterclockwise
Dry weight [kg] 365 1240 1620 632 1240
Live PTO - - SAE B-B, B, C-C, C - -
Engine model : 6AYM-WGT L-rating
Model YXH-240
Type Hydraulic multi-disc clutch
Reduction ratio (Ahead) 1.95 2.27 2.56 3.03 3.48
Direction of rotation
(propeller shaft)		 Clockwise or counterclockwise
Dry weight [kg] 632
Engine model : 12AYM-WST H-rating
Model YXH-500-1 YXH-500L-1
Type Hydraulic multi-disc clutch
Reduction ratio (Ahead) 2.53 3.04 3.48 3.57 4.07 4.96
Direction of rotation
(propeller shaft)		 Clockwise or counterclockwise
Dry weight [kg] 970 1620
Live PTO - SAE B-B, B, C-C, C

Dimensions

Unit: mm

6AYAM-ET

6AYM-WST

6AYM-WET

6AYM-WGT

12AYM-WST

12AYM-WET

12AYM-WGT

Power Chart

Power Range
GM Series YM Series JH Series CHE Series HA Series LY Series CXB Series HY Series AY Series AYE Series

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