The Cummins M-series engine is a straight-six diesel engine designed and produced by Cummins. It displaces . Introduced as the M11 in 1994, it was built on the previous L10 engine (also cylinder bore, but a longer piston stroke compared to the L10's 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. The ISM is available in four configurations, with slightly different emphasis on maximum power ( vs. ) and peak torque.
Applications Large transit buses ( and up).Cummins engine ratings, Cummins website, 2009, accessed 2010-08-18. Coaches Large fire trucks Heavy-duty trucks Off-Highway (QSM11)
Power ratings Urban bus @ 1200 rpm, (209 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm
RV, Truck, Motorcoach Source:http://www.cummins-sp.com/document_library/Engine%20Ratings/ISM_engine_ratings.pdf @ 1200 rpm, (209 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm @ 1200 rpm, (209 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm @ 1200 rpm, (209 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm @ 1200 rpm, (246 kW) electronically governed at 2,100 rpm
References
External links Cummins ISM (archived) M11 Cummins Inc.