I have been reading the threads and have come to the conclusion. How many names does the Cummins light duty power-plant have?

It appears the correct names are a matter of opinion. Some like to refer them as generation. While purists like myself refer to their true manufacture name.

Example: First gen, 5.9l 12 valve with the Bosch VE rotery pump.
Second gen, 5.9l 12 valve with the Bosch P7100 inline injection pump.
They were first developed in 1984 and appeard in the 1989-98 Dodge Ram Trucks. Both power-plants were known as the B series referred as the 6BT there were originally built for the CASE Corporation (now called Consolidated Diesel Corp) thats why the original color is a pale yellow under the black paint. If your looking for cheaper OEM Cummins Parts go to a Case dealer.

second Example:
Third gen, 5.9l 24 valve
Also known as the ISB (Interact System B) It is a multi-valve push rod design. Produced in Columbus, Indiana. The 24 valve design has various advantages over the older 12 valve head.
The ISB uses electronically controlled Bosch fuel systems, unlike the 6BT which were mechanical. Early ISB engines utilize Bosch injectors and a Bosch VP44 high pressure pump. Has anyone ever heard of the QSB (Quantum System B)? Something to think about. It is the ISB developed for Marine, Agriculture, and Commercial applications. It was manufactured from 1998-2003

Third Example:
Fourth gen, 5.9l 24 valve Common Rail.
Its designation is the ISB CR. Just the like the 6BT (first and second gen) history repeats it's self! By upgrading the fuel system to the common rail. which gave it much more power! Manufactured from 2003-2007

Fourth Example:
no generation name like Fifth gen, it was called the B6.7 it retained the B code because it uses 45% of the original B5.9 parts. It was originally introduced in Europe as the 6.7l ISB before it was released in the US to meet the EPA mandated emissions.
Manufactured from 2007- to present till it needs to be updated.

I hope this information helps, and inspires debate. This is a highly interesting subject.
All information was acquired through 2009 Encyclopedia Funk and Wagnal. Local Cummins West, and Case dealerships/repair shops. Various Cummins and Chrysler service books were also used in compiling this info.

Forgive me for any grammatical or spelling errors.
Now let the Debate Begin!

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If you enjoyed this info please feel free to click on the thank you button.

 

not sure if the 6.7 can be a B series. the B series 6bt and 4bt were all 1l per cyl motors.

 

great article... as far as people calling these trucks by names such as 1st gen, 2nd gen etc.. around where im from theres still alot of debate about it. BUT most of the time it seems to be based upon the body styles of the trucks. ie. 93 an earlier model trucks are 1st gens. the 94 to 02 trucks are second gen. the 03 to 05 are third then and 06 to 09 were fourth gen an so on... with all that in mind and the info you have relayed upon us. i think its a mixture of shop "tech talk" and hillbilly slang.

 

It was designated B6.7; Reason being is that it retains 45% of the original B5.9 parts plus the fact that it is a direct injected, Common rail, ISB.
Thank you for your comment.

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I highly agree! Thank you for your post!

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Not much as of interest on this subject.

 

well i'm interested, but i guess i don't get the point, there seems to be alot more about the VE, P-Pump, and 24v and I don't really care about those, I wanna know more about the common rail cause it's what i have, i guess i'm biased

 

There is allot to be known about these Power-plants. Yours is no exception. With respect to the other Power-plants. The cool thing about your common rail, is when they figure out the software to actually tune it correctly. Not a single older 5.9l will be able to keep up! Some of the programs modules like EDGE, Bully DOG, and even chips cause extreme EGTs so allot of the guys go back to the tried and true mechanical Power-plants. My personal experience is flash tuning like a Smarty. It works better, even when using other products just watch the EGTs. They are basic tunes whether it is mild or extreme. Only good for a broad spectrum of mods they really don't have the true capability a serious moder is looking for. There is no substitute for an accurate combination of calibration and blending for maximum, efficient ECM Tuning for the mods on your truck. With that said you actually have a better power-plant then the older generations it replaced. It is just hindered by the lack of real tuning software that is currently being developed.

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I hope that helped you bobcat67

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No debate? I must be slipping usually I am being corrected or challenged to a Discussion!

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I won't challenge you because I agree completely with your above statement, I wish there were custom tunes like EFI Live or Spartan style for the cummins, right now the only option for the common rail is the Zeus ECM which is about 3 grand and is completely out of reach for a guy like me or many others like me that have "alot" done to their trucks but can only go so far, mads electronics/smarty is a great tuner for these engines, but the potential is still only being partially tapped i think, I want to be able to fine tune or have someone fine tune my engine to run at it's optimum level for about a grand, I think that'd be fair to get completely custom tunes for the "new" common rail engines

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one thing i will question in your original post is where is says cummins light duty engine, i have always been under the impression it was a medium duty engine, at least that's what i've always heard, had cummins techs tell me and have seen it in medium duty platforms such as for F700's with dump beds and such, just a thought or statement, not really an arguement

 

Oops! I Was not after a challenge from you. Please except my apologies. We are both correct on the power-plants being Light Duty & Medium Duty It depends on the application and CPL number that determines it's capabilities. when referring to the three quarter ton, and one ton ram trucks. It is safe to say it was meant for light duty most of these trucks only see the highway. We are a select few that do more with our trucks. some would say that we are sever duty! When it is put to those platforms they may use the same CPL# or a different variant according to the specs provided for the work to be done.
So I agree with you! Excellent Point!
Thanks for the post!

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Just to keep my topic Active. I am in no way trying to start Trouble! However; their were six of you who disagreed with my Article! They obviously don't have the Fuel to say why! They know who they are! To the rest of you enjoy the article.

 

Bump!

 

apparently no one likes the thread