I believe you gentleman are a bit misinformed. Red fuel is still at 500 PPM sulfur content so dye is not the only difference. Since red fuel is stored in above ground steel tanks that range in temps from -0 to 175 degrees in sunlight. This creates condensation which rusts the **** out of the tank with gallons of water. Rust particles range in size from .01 microns to 1/2". Bosch nor Cummins changes part #s just for giggles, it's because a change was made. Your comment that the later run injectors are better is contradicting your 06-07 comment. Every 325 HP built from 04.5 to 07 were identical injectors. 03-04 305 and 250 HP were different spray pattern and had exact same issue as 01-03 GM, excessive leakage. Bosch rebuilts are cheaper than Cummins Recon, but genuine Cummins are the way to get latest improvements. All the 5.9 CR injectors were basically junk in one form or another. 03-04, leakage, 04.5-07 will stick open and burn pistons down. They clearly are not the 'same injectors'.

 

That is great info bro. I was not aware of that. Thanks!

 

All I can do is shake my head at the myriad of misiformation and misconceptions that still float around the internet. The only thing missing so far is "Ford really owns Cummins". LMAO!! The BS flag is at full mast!!

ALL diesel fuel as of 2014 is REQUIRED by EPA to be ULSD, that includes road diesel, off road diesel, locomotive and marine diesel. By 2010 all but a very few small refineries were switched to ULSD. California and other CARB states required ALL diesel sold to be ULSD from 2007 on. There wer a few excpetions for small refineries to produce very limited amounts of 500 PM diesel for off road, locomotive, or marine use but that was only to give thme time to comply. 99% of the red fuel sold in the US today is in fact ULSD.

There is absolutely no difference in the body design from 03-07 on a CR injector. Nothing. They are exactly the same injector with al the same issues. The only differenc eis the spray angles and number\size of holes in the tips from early to late. They were\are all VCO nozzles with all the same parts inside the injector. The updates to the injector came in late 06, I am sure we have all heard of the "stainless steel" injectors. If you haven't, time to do a little research. That change to composition of the metal in the bodies, the pintle seat, and check ball seat was made to offset the issues of metal fatigue and excessive wear due to the really crappy fuel we have here in the US. Bosch learned and changed with the needs on the CR engines. The harder bodies were also precursor to requests for better high pressure tolerances that were going to be used on the 6.7 injectors. It was prototyped in the process on the 5.9 injectors to test it out.

The issues with the early Dmax injectors were specific to a design fail on those engines, did not affect any Cummins engines. If one ran adequate filtration from the start in 03 there were no issues with injectors and the misconception those years had bad injectors was debunked over and over. The one year that did ahave a bad run of production injectors was in fact 06, it was purely a QC problem when production was moved to some of the former iron curtain countries.

Cummins doesn't rebuild injectors, Bosch does. Bosch has 3 levels of rebuilds they market, what causes the most problems are the cheaper ones that everybody wants. If you want good parts they have to be paid for and most kick about it.

Absolutely nothing wrong with ANY 5.9 CR injector. Nothing, abosultely nothing. The PROBLEM was Dodge NOT taking Cummins and Bosch advice on filtration. Thats it, nothing more. Any hotshotter that has been around long enough with these Dodges will testify that runjning adequate filtration was the solution. Dodhge spced a 10um filtration against all recs when it was known anythong over 3 um of solids accelerated the demise of the fuel system. Even without extra fltration judicious buying of good diesel made a huge difference. The early CR's smply got caught in the switch over to LSD and ULSD when the process had problems.

ULSD is terrible about water holding and it has taken a few years to get that beat into heads. You see the results of that on the new Dodges with 3 um multi-pass filtration to limit warranty claims. All it take is a little experinece with the medium duty truck scene to understand just how bad the LD truck market was screwed by the lack of filters.