Cummins ISL

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The Cummins ISL is an 8.9 litre, inline six cylinder diesel engine. The ISL was designed to bridge a gap in Cummins' line of engines that the discontinuation of L10 had left, however it is not a direct descendent of the L10 and has more in common with the ISC.

The CNG-fueled L Gas Plus was based on the ISL's 8.9 litre block. It was replaced by the Cummins Westport ISL G in 2008.

The EPA 2004 compliant ISL was introduced in October 2002 and met the limits of 2.5 g/hp-hr of nitrogen oxide (NOx) and nonmethane hydrocarbons (NMHC) and 0.1 g/hp-hr of particulate matter. Cummins updated the ISL with a High-Pressure Common-Rail (HPCR) injection system and a variable geometry turbocharger to improve the performance of the engine.[1]

The EPA 2007 standards set a limit of 0.01 g/hp-hr of particulate matter. The ISL features a particulate filter and a crankcase coalescing filter to control emissions. During the phase-in period between 2007 and 2009, Cummins produced 50% of their engines to meet EPA 2010 regulations. The EPA set 2010 NOx emission at 0.2 gr/hp-hr. Cummins employed selective catalytic reduction (SCR), which was already used in Europe to meet the Euro 4 levels, to reduce NOx emissions. Cummins announced on January 8, 2010 that the ISL9, as it is now known, received EPA 2010 certification.[2]

Models

Model Max. power Max. revs Max. torque Emmissions certifications
ISL 250 250 hp 2200 rpm 730 lb-ft @ 1300 rpm EPA 2004, EPA 2007
ISL 280 280 hp 2200 rpm 900 lb-ft @ 1300 rpm EPA 2004, EPA 2007
ISL 330 330 hp 2200 rpm 1100 lb-ft @ 1300 rpm EPA 2004, EPA 2007
ISL9 250 250 hp 2200 rpm 730 lb-ft @ 1300 rpm EPA 2010
ISL9 280 280 hp 2200 rpm 900 lb-ft @ 1300 rpm EPA 2010
ISL9 330 330 hp 2200 rpm 1100 lb-ft @ 1400 rpm EPA 2010
ISL9 330 H 330 hp 2200 rpm 1050 lb-ft @ 1500 rpm EPA 2010
ISLe 350 hp 2100 rpm 1550 Nm Euro 2
ISLe 209-260 hp 2100 rpm 1550 Nm Euro 3
ISLe 280-400 hp 2100 rpm 1700 Nm Euro 4, Euro 5

References

  1. Helpful Cummins ISL Information, dieselserivceparts.com. Retrieved on 2009-06-03
  2. Cummins Receives EPA 2010 Certification for Heavy-Duty and MidRange Engines (Press Release). 8 January 2010. Retrieved on 23 April 2012.

External links

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Cummins logo.png
Current products
Diesel B6.7 - L9 - X12 / X15
CNG ISB6.7 G - ISL G - ISX12 G
Former products
Diesel ISB6.7 - ISL9 - ISX12 / ISX15 B5.9 - C8.3 - ISC - ISM - L10 - M11 - NH Series - VTB-903
CNG B5.9G - B Gas Plus - C8.3G - L10G - C Gas Plus - L Gas Plus
Propane B LPG Plus