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Also, I just found two UHE Filter/Water Separators with 1-14 threads. I would not expect the UHE primary filter/water separators to have the same micron rating as the UHE secondary filters do, but I could be wrong. The 364-5286 Fuel Water Separator, is 9.1" tall. The 299-1893 Fuel Water...

This is new to me, but the Caterpillar 319-0844 Fuel Filter is in the Ultra High Efficiency line, and has 1"-14 threads. They've updated their website where it tells the thread size and pitch recently. Cat also offers filters with "radial" seals and "axial" seals, and I don't know which type...

Ok, So after about 2 hours at the local Caterpillar dealer, I finally got a list of parts to retrofit a 364-5287 UHE fuel filter to my pickup. The 364-5287 is an “ultra high efficiency” upgrade to the “advanced efficiency” grade 1R-0751. The most recent filter testing standard, ISO 16889...

Well, I was going to edit the previous post, but I don't see an edit button. Oh well. One of the Cat UHE fuel filters is the Caterpillar 299-8229. It has a M12x1.5 threads, so I'm guessing it won't flow well unless you've got a lift pump pushing pretty hard. Baldwin lists the BF7990 as a...

Here is one more twist on the "micron" ratings stuff. Apparently, there is a new testing standard on filters. This method cannot test anything less than 4 μm. So, Caterpillar now has a new line of filters dubbed "Ultra High Efficiency," that go beyond the "Advance Efficiency" of the 1R-0749...

You're welcome, and Thank you. Yeah, I've noticed that there ARE NO filters from Donaldson rated at 2μ absolute. Also, I looked up the P551743 you listed in the 2μ section. Donaldson is saying that one is 3μ nominal, not absolute. Which means it's likely 10μ or 7μ absolute. I run the...

For the 1"-14 filters, you can also add a Donaldson P553203 or a P553207. Both of these filters will fit the 1"-14 filter head, both are rated 99% efficient at 3μ, and are drainable water separators, but the P553207 is about 1" longer than the P553203.

Gentlemen, My mechanic has completely rebuilt my 4L80-E, including replacement of all the shift solenoids, the torque converter, the internal wiring harness, the PCM computer, and the brake switch. The torque converter will still not lockup. My mechanic removed the tranny, disassembled it...

There were no DTC's using OBDII. I took it to my local GM dealer so he could use a Tech2 device to scan the PCM, which revealed P1870, which translates to "Transmission Component Slipping" in the Service Manual. That was something I already knew, I just didn't know why. They dropped the pan...

HELP - 4L80-E won't lockup, then looses 4th gear entirely. Wow, you guys seem to really know your stuff. I did a google search for "4l80 tcc pwm" and stumbled upon this thread. After reading a few posts in this thread it seems the members here reallly know their stuff. Here's my problem...