Cummins M-series engine explained
| Cummins M-series engine |
| Manufacturer: | Cummins |
| Aka: | M11, M11 CELECT Plus, ISM, ISMe |
| Production: | 1994–2010 (M11, M11 CELECT, ISM)
1994–present (ISMe) |
| Predecessor: | Cummins L10 |
| Successor: | ISX12 |
| Configuration: | Straight six diesel engine |
| Displacement: | 10.81NaN1 |
| Bore: | 4.921inches |
| Stroke: | 5.787inches |
| Block: | Cast iron, CGI Compact Graphite |
| Head: | Cast iron |
| Turbocharger: | Holset Variable Geometry Turbocharger (ISM) |
| Fueltype: | Diesel |
| Oilsystem: | Wet sump |
| Coolingsystem: | Water cooled |
The Cummins M-series engine is a straight-six diesel engine designed and produced by Cummins. It displaces 10.81NaN1. Introduced as the M11 in 1994, it was built on the previous L10 engine (same 4.921inches cylinder bore, but a longer 5.787inches piston stroke compared to the L10's 5.354inches stroke).
Later M11's received the electronic CELECT and CELECT Plus fuel systems consisting of a gear pump and solenoid controlled injectors. The M11 CELECT Plus became the ISM when Cummins applied its Interact System (hence the "IS" in ISM) to the M11 CELECT Plus in 1998 to further improve the engine. The ISM is available in four configurations, with slightly-different emphasis on maximum power (4500NaN0 vs. 500hp) and peak torque.
Applications
Popular power ratings
- Urban bus
925lbfft @ 1200 rpm, 280hp (209 kW) electronically governed at 2,100 rpm
1150lbfft @ 1200 rpm, 330hp (246 kW) electronically governed at 2,100 rpm
- RV, Truck, Motorcoach[2]
1050lbfft @ 1200 rpm, 280hp (209 kW) electronically governed at 2,100 rpm
1150lbfft @ 1200 rpm, 310hp (246 kW) electronically governed at 2,100 rpm
1250lbfft @ 1200 rpm, 330hp (209 kW) electronically governed at 2,100 rpm
1350lbfft @ 1200 rpm, 330hp (246 kW) electronically governed at 2,100 rpm
1350lbfft @ 1200 rpm, 350hp (209 kW) electronically governed at 2,100 rpm
1350lbfft @ 1200 rpm, 370hp (246 kW) electronically governed at 2,100 rpm
1450lbfft @ 1200 rpm, 370hp (246 kW) electronically governed at 2,100 rpm
1450lbfft @ 1200 rpm, 400hp (246 kW) electronically governed at 2,100 rpm
1550lbfft @ 1200 rpm, 425hp (246 kW) electronically governed at 2,100 rpm
1450lbfft @ 1200 rpm, 450hp (246 kW) electronically governed at 2,100 rpm
1550lbfft @ 1200 rpm, 500hp (246 kW) electronically governed at 2,100 rpmExternal links
Notes and References
- http://cumminsengines.com/every/misc/ratings.page? Cummins engine ratings
- http://www.cummins-sp.com/document_library/Engine%20Ratings/ISM_engine_ratings.pdf{{dead link|date=August 2017 |bot=InternetArchiveBot |fix-attempted=yes }}
