I went to order some PF63 oil filters from an on line GM parts source, and the blue PF63 oil filters seem to be getting phased out. They show the new part number as 19363567, which is a black colored AC Delco Silver product apparently marked PF63A. Some sites show a part number 12693541, which is a black colored AC Delco Ultragard Gold filter marked UPF63R.
I assume the UPF63R is the better one, but I’d be happy if I could just get blue PF63 filters I’ve been using.
Can anyone explain what is going on with the filter part number changes and any actual design changes? Any other advice on buying OEM filters right now? Thanks
If anyone lands here looking for an update - the problem wasnt with the hose, the clamp, etc... I purchased a metal Thermostat housing that just must not of been made to spec. It just wouldn't plug up the hose.. Went back to a plastic cheap housing - leak fixed. Some plumbers tape carefully placed in tandem with a clamp likely would've gotten the job done.
Best,
For anyone following, this is what I have deduced from this forum - and my very specific niche case. Please do let me know if you see me going in the wrong direction here. For context, I have a 16 sierra 1500 w/t. Has TC and Cargo light switches. Removed the switch to find the X1 and X2 of the S48A connection populated with wires (x1 10-14, and x2 1-5).
Took photos of the X61A-X5 to find the wires from S48A-X1 land here at their respective pins (10, 11, 17, 23 on the X5). Was hopeful that this means my X51A fuse box has the appropriate pins... No cigar. So now I will be routing wires from the rear of the X61A-X1 to the engine bay and to their respective negative relay triggers. Please see to the diagram. If any has insight as to where the S48A-X2 pins 4 and 5 land that would be awesome.
Note: please disregard fuse sizes. Main fuse will like be 25A, all mini bus fuses will likely be 10-15A
Cheers
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