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Old 11-19-2019, 10:39 AM   #1
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Does anyone know what year Cummins started installing the EGR system in their ISM/M11 engines?
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Old 11-19-2019, 10:51 AM   #2
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

Don't have the answer to that but noticed you are kinda new on the forum and wanted to say hello!

Good luck, happy trails, and God bless!
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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Old 11-19-2019, 10:53 AM   #3
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Per this link Helpful Cummins ISM Information states EGR started in 2002 then added DPF 2007.
1995 Gulfstream Sun Voyager MX 34' DP with 2011 Silverado in tow.
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Old 11-19-2019, 07:55 PM   #4
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I’ve read it could be late 2002 so not all 02 engines.
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Old 11-19-2019, 11:48 PM   #5
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Bare in mind, motorhome manufacturers sometimes put previous year or even several year older engines in a later model motorhome. I have a 03 coach with ISM but no EGR, so very possible engine was manufactured in 2002 or 2001. Believe the ISM supercededed the M-11 in the late 90's so pretty sure it will not have any type of EGR.
Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
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Old 11-20-2019, 10:20 PM   #6
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yep, around 2001-02.. it depends
2003 Scepter 40PDBB - Roadmaster RR8S - Cummins ISC350 - purch aug16
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