PureTexanRebel

Well my truck is getting up there in miles (350k+), and while no problems as of yet, I'll probably be replaceing the engine within the next two years. And my choices for my 96 is between what, the Killer B and the ISB engines right? Just wondering what people general experience and/or recommendations would be.

cumminsdriver635

While I dont really understand what you are asking(whats a killer B?), I say run it till it blows. It may run another 500k miles. If it aint broke dont fix it..

Eric

kelownadiesel

Yep dont worry about high miles on a 12v

PureTexanRebel

Well thats definitely good to hear. Still pretty new to the diesel world. Used to gassers (my 79 Plymouth Ram Charger [from mexico] dead at 300k, 87 4Runner dead @ 245k, 92 dakota dead @ 270k), and you rarely see ANYTHING get over 300k miles. I knew diesels were supposed have a little more longevity, but I wasn't sure how much.

And you know, the 88-93 were called the Super B model diesels, 94-97 were Killer B diesel engines, and 98+ is the ISB diesels... http://dodgeram.org/tech/dsl/Facts/epa_changes.htm

Mike D

Killer B is just a nickname for the ISB

PureTexanRebel

Ah... That site confused me then lol...

signature600

No, Killer B was what Cummins called the later 12v's. "IS"B is what Cummins called the ECM/Fueling systme on the 24v's...Interact System, B Series = ISB

Chris

BTW, it would be a pain in the but to put a 24v in a 96...also a stupid thing to do, since the 12v are near bulletproof in stock or mildly BOMBed form

strokethis600

Just get it tuned up every 200,000-300,000 miles and you should be golden. I know of a guy around here that has almost a million miles on his 12v and drives it every day. It has also been built up to be a puller twice and then de-tuned. Welcome to the world of cummins.

Mike D

I thought both 12 and 24 valves were B series motors? Learn something new everyday.

jrs_dodge_diesel

They are "B" series engines, just different designations.

The older mechanical injected engines used a code to designate them. For example the 5.9L used in the Rams 98 and older had the designation 6BTA. Which that translated into 6 cylinders, B series, T - Turbocharged, and A - aftercooled/intercooled. In 98 when Cummins came out with the 24V engine it became known as the ISB (Interact Systems "B", since it has a ECM) Still a B series engine just a different way of controlling it. \

Killer B and Super B were just nicknames of the engines. Cummins even had logos for the engines too. Check this out, this is a Super "B" sticker I got from a Cummins parts and service center a few years ago.

PureTexanRebel

Now thats a good lookin sticker. So I wasn't completely wrong was I?

jrs_dodge_diesel

Thanks, I have't stuck it to anything yet. Was thinking of slappin it on the guitar case.

Nope, just off by a few years.

Mike D

So, to sum it up the 12v's are Killer B and 24v's are Super B?

PureTexanRebel

Nah, don't put it on your guitar case. I think it'd look good right above the door badges, or maybe on the rear window?

jrs_dodge_diesel

Not quite,

12V VE rotary pump was the Super "B"
12V w/ P7100 injection pump is the Killer "B"
24V is simply the ISB.