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04-12-2008, 03:42 PM
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#1
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Senior Member
Monaco Owners Club
Join Date: Oct 2007
Location: Washington State
Posts: 229
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Just exactly what do they all mean? It's not all that important, but for some reason it's driving me nuts.
I tried a feeble search, but didn't find anything specific to the question.
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Corkey & Dana
2008 HR Endeavor (DIP) PDQ
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04-12-2008, 03:42 PM
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#2
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Senior Member
Monaco Owners Club
Join Date: Oct 2007
Location: Washington State
Posts: 229
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Just exactly what do they all mean? It's not all that important, but for some reason it's driving me nuts.
I tried a feeble search, but didn't find anything specific to the question.
__________________
Corkey & Dana
2008 HR Endeavor (DIP) PDQ
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04-12-2008, 04:14 PM
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#3
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Senior Member
Newmar Owners Club
Join Date: Jul 2006
Location: Wellington, Florida
Posts: 13,599
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Hi Corkey,
It is just Cummins way of labeling their different engines. As best I remember, the IS stands for integrated circuit. The last letter is the engine family. B is the small and X is the large. The letters inbetween B and X indicate where the engine family falls in the size wise line up.
__________________
Gary
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
The Avatar Is Many Times Around The USA
Nobody Knows Your Coach Like Somebody Who Owns One Just Like Yours
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04-12-2008, 08:19 PM
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#4
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Junior Member
Monaco Owners Club
Join Date: Mar 2008
Location: USA
Posts: 22
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engine types
If you are asking what does the 'B' stand for, sorry. But you did get my curiousity going.
Found this:
ISB Interact System B: Cummins designation for the 24 Valve "B" series diesel introduced to the 1998 Ram
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04-13-2008, 02:36 AM
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#5
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Administrator in Memoriam
Newmar Owners Club Retired Fire Service RVer's Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,898
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The "IS-" series of engines are electronically controlled as opposed to the older mechanically controlled engines.
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Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP
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04-13-2008, 03:01 AM
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#6
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Senior Member
Join Date: Feb 2004
Location: South Carolina
Posts: 770
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Corkey:
Just exactly what do they all mean? It's not all that important, but for some reason it's driving me nuts.
I tried a feeble search, but didn't find anything specific to the question. </div></BLOCKQUOTE>
----------------------------------------------
Cummins has a very long history of naming its various engines by letter designation; sort of like the old Fords i.e. model A, B etc. The most long lived was the H (5/1/8"bore)and then NH (New H)(5 1/2"bore)). So, with the release of the new IS (Interact System which allows for interaction of various non-engine components from ECM)version they simply picked up the letter from the series i.e. B became ISB, C became ISC. The latter larger versions like ISM, ISX are new but continue the letter tradition. To confuse things, Cummins has at time used names like VIM/VINE to designate V type engine 6 cylinders (VIM) and 8 cylinders (VINE) and then later went to VT-903 when they went to a large V8. Then , in 1970's they released the K in line series and denoted them as KT-450, etc. In other words, there is no real strict code parse to their numbering convention - one has to just become familiar with the engines but one can say that a single letter means mechanical and IS means electronic controls.
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Ecker
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04-13-2008, 03:27 AM
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#7
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Senior Member
Monaco Owners Club
Join Date: Apr 2008
Location: Oak Ridge, TN
Posts: 329
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Corkey
Here is a link with information that may help.
http://en.wikipedia.org/wiki/Cummins
Lew
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[SIGPIC][/SIGPIC]
2016 Winnebago Cambria 30J
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04-13-2008, 05:05 AM
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#8
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Senior Member
Monaco Owners Club
Join Date: Oct 2007
Location: Washington State
Posts: 229
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Ecker, thanks for the rundown. Once I get a grip on all of this, I think I will be able to drive defensively in the fog.
LewF, thanks for the link. It provides a good history lesson, probably take me a month to soak it all up, I'm slow but deliberate.
Not knowing was, as I said, "driving me nuts", now I know and the other half says I'm still nuts.
Thanks all for responding, ... informative.
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Corkey & Dana
2008 HR Endeavor (DIP) PDQ
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04-13-2008, 07:34 AM
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#9
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Member
Join Date: Apr 2008
Location: Talladega County Alabama
Posts: 97
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While we are on the subject I was wondering what the AD designation meant as in the ISB 300 AD which is one of the engines listed for RV application.
__________________
2008 Winnebago Destination 39W, Freightliner XC Chassis,
Cummins ISB 300HP
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04-14-2008, 03:00 AM
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#10
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Senior Member
Join Date: Feb 2004
Location: South Carolina
Posts: 770
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Higgins:
While we are on the subject I was wondering what the AD designation meant as in the ISB 300 AD which is one of the engines listed for RV application. </div></BLOCKQUOTE>
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I will have to check to be sure but I think it means air compressor delete. You can not select the air compressor option on this engine. This version is designed for low cost entry level diesel motor home like Monaco LaPalma which has hydraulic braking. In addition, it comes with a three year warranty not five to further lower cost.
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Ecker
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06-16-2008, 02:01 PM
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#11
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 59
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i have a 5.9 isb
with a B on the block any input
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1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
Allison MT 643
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06-17-2008, 07:20 AM
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#12
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,713
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What sort of input are you looking for?
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Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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06-18-2008, 07:57 AM
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#13
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Member
Join Date: May 2008
Location: san bruno ,ca
Posts: 59
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any problems with this block
where is it made
is it made before or after the 53 block
thanks
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1999 WINNEBAGO ADVENTURER 34V
CUMMINS ISB 5.9 275 hp
Allison MT 643
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05-08-2009, 10:12 PM
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#14
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Member
Join Date: Apr 2009
Posts: 41
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The "I" and the "s" simply state the type of the engine layout. "Inline Six" .Cummins started using this prefix when they started selling their product to the general public in dodge pickups. Before that, they were just designated by series , a,b,c,....and so on.You will never a veteren trucker use the letters "I" "S" when talking about what engine he's got under the hood,He (or she) will say,"Iv'e got a cummins M series"
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