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Mitsubishi marine diesel engines
Specifications
Standard engine equipment

All Mitsubishi engines are designed and built to deliver performance, dependability and fuel efficiency. The combustion chamber design, the fuel injection technology, the turbocharger and the advanced cooling system have been perfectly balanced to provide highly reliable operation and optimum fuel efficiency across the entire power curve.

Maintenance is simplified as each cylinder has its own cylinder head. The engine has large inspection covers on the crankcase and oil pan*. None of the auxiliary components (fuel injection pump, governor, water pump, turbocharger) requires separate lubrication.

At Mitsubishi's ISO certified manufacturing facilities, every Mitsubishi engine is built to meet the highest quality standards, as recognized by Lloyd's Registry of Shipping and other major international marine classification societies. Mitsubishi marine engines comply with EPA and IMO emissions standards.

Specifications: printable marine engine matrix

Model		Configuration	EPA tier	Displace- ment	Propulsion Heavy duty	Propulsion Medium duty	Generator Drive	Weight
S6B3-Y1MPTA		in-line 6 cyl, turbocharged, intercooled	Tier 1	14.6 L 891 cu.in	429 hp / 320 kWm @ 1940 rpm	469 hp / 320 kWm @ 2000 rpm	503 hp / 375 kWm @ 1800 rpm
S6B3-Y1MPTK		in-line 6 cyl, turbocharged, intercooled	Tier 1	14.6 L\| 891 cu.in	462 hp / 345 kWm @ 1940 rpm	509 hp / 380 kWm @ 2000 rpm	550 hp / 410 kWm @ 1800 rpm
S6B3-Y2MPTK	specs	in-line 6 cyl, turbocharged, intercooled	Tier 2	14.6 L 891 cu.in.	429 hp / 320 kWm @ 2000 rpm	469 hp / 320 kWm @ 2065 rpm		2,889 lb 1,310 kg
S6A3-Y1MPTA	specs	in-line 6 cyl, turbocharged, aftercooled	Tier 1	18.56 L 1,133 cu.in.	483 hp / 360 kWm @ 1840 rpm	529 hp / 395 kWm @ 1900 rpm	617 hp / 460 kWm @ 1800 rpm	4,079 lb 1,850 kg
S6A3-Y1MPTK	specs	in-line 6 cyl, turbocharged, intercooled	Tier 1	18.56 L 1,133 cu.in.	543 hp / 405 kWm @ 1840 rpm	597 hp / 445 kWm @ 1900 rpm	637 hp / 475 kWm @ 1800 rpm	4,079 lb 1,850 kg
S6R-Y1MPTA	specs	in-line 6 cyl, turbocharged, aftercooled	Tier 1	24.51 L 1,496 cu.in.	590 hp / 440 kWm @ 1600 rpm	650 hp / 485 kWm @ 1650 rpm	798 hp / 595 kWm @ 1800 rpm	6,130 lb 2,780 kg
S6R-Y1MPTK	specs	in-line 6 cyl, turbocharged, intercooled	Tier 1	24.51 L 1,496 cu.in.	630 hp / 470 kWm @ 1600 rpm	697 hp / 520 kWm @ 1650 rpm	852 hp / 635 kWm @ 1800 rpm	6,130 lb 2,780 kg
S6R-Y2MPTK	specs	in-line 6 cyl, turbocharged, aftercooled	Tier 2	24.51 L 1,496 cu.in.	630 hp / 470 kWm @ 1600 rpm	697 p / 520 kWm @ 1650 rpm		6,240 lb 2,830 kg
S6R2-Y1MPTA	specs	in-line 6 cyl, turbocharged, aftercooled	Tier 1	29.96 L 1,828 cu.in.	597 hp / 445 kWm @ 1350 rpm	657 hp / 490 kWm @ 1400 rpm	798 hp / 595 kWm @ 1500 rpm	6,417 lb 2,910 kg
S6R2-Y1MPTK	specs	in-line 6 cyl, turbocharged, intercooled	Tier 1	29.96 L 1,828 cu.in.	643 hp / 480 kWm @ 1350 rpm	710 hp / 530 kWm @ 1400 rpm	858 hp / 640 kWm @ 1500 rpm	6,417 lb 2,910 kg
S12A2-Y1MPTA	specs	V-12, turbocharged, aftercooled	Tier 1	33.93 L 2,071 cu.in.	850 hp / 634 kWm @ 1940 rpm	940 hp / 701 kWm @ 2000 rpm	1020 hp / 761 kWm @ 1800 rpm	7,453 lb 3,380 kg
S12A2-Y1MPTK	specs	V-12, turbocharged, intercooled	Tier 1	33.93 L 2,071 cu.in.	940 hp / 701 kWm @ 1940 rpm	1040 hp / 776 kWm @ 2000 rpm	1110 hp / 828 kWm @ 1800 rpm	7,453 lb 3,380 kg
S12A2-Y2MPTK		V-12, turbocharged, intercooled	Tier 2	33.93 L 2,071 cu.in.	940 hp / 701 kWm @ 1940 rpm			7,453 lb 3,380 kg
S12R-Y1MPTA	specs	V-12, turbocharged, aftercooled	Tier 1	49.03 L 2,992 cu.in.	1180 hp / 880 kWm @ 1600 rpm	1300 hp / 970 kWm @ 1650 rpm	1595 hp / 1190 kWm @ 1800 rpm	11,532 lb 5,242 kg
S12R-Y1MPTK	specs	V-12, turbocharged, intercooled	Tier 1	49.03 L 2,992 cu.in.	1260 hp / 940 kWm @ 1600 rpm	1394 hp / 1040 kWm @ 1650 rpm	1702 hp / 1270 kWm @ 1800 rpm	11,731 lb 5,332 kg
S12R-Y2MPTK	specs	V-12, turbocharged, intercooled	Tier 2	49.03 L 2,992 cu.in.	1260 hp / 940 kWm @ 1600 rpm	1394 hp / 1040 kWm @ 1650 rpm		11,731 lb 5,332 kg
S16R-Y1MPTA	specs	V-16, turbocharged, aftercooled	Tier 1	65.37 L 3,989 cu.in.	1568 hp / 1170 kWm @ 1600 rpm	1729 hp / 1290 kWm @ 1650 rpm	2131 hp / 1590 kWm @ 1800 rpm	14,685 lb 6,675 kg
S16R-Y1MPTK	specs	V-16, turbocharged, intercooled	Tier 1	65.37 L 3,989 cu.in.	1676 hp / 1250 kWm @ 1600 rpm	1850 hp / 1380 kWm @ 1650 rpm	2265 hp / 1690 kWm @ 1800 rpm	14,950 lb 6.795 kg

Standard engine equipment:

Fuel system
Flexible fuel supply and return hoses, fuel feed pump(s), fuel filters, fuel injection pump(s), double-walled fuel injection lines, fuel injectors, overflow valve

Lubricating oil system
Wet type oil pan with inspection covers*, gear-driven oil pressure pump, full-flow lubricating oil filters, bypass oil filter, oil cooler with thermostat, piston cooling through oil injectors

Cooling system
Fresh water pump, thermostats with bypass (sea or fresh water must be specified when ordering)

24 Volt electric system isolated ground
Starter motor(s), battery charging alternator, energize-to-stop (ETS) stop solenoid

Air intake and exhaust system
Mitsubishi turbocharger with vertical exhaust outlet, air inlet silencer with pre-cleaner, inlet air aftercooler(s) or intercooler(s), inlet manifold(s), fresh water cooled exhaust manifold¤

General
Hydraulic Woodward PSG governor* with oil supply system, mounting brackets, SAE standard flywheel and housing, torsional vibration damper, parts catalog and owners manual

Options
Air starting, heat exchanger or keel cooling and other options are available by request

Notes:
* The S6B3 does not have an inspection cover in the oil pan; the S6B3 has a mechanical governor
¤ The S12A2, S12R and S16R have a dry exhaust manifold

updated Jan/2010