I’ve watched that same video a few times myself and had considered changing it too until I saw the price but now I just have to. I don’t have the pump out yet so can’t confirm but it’s my understanding the original pump is a gear pump and not gerotor. My 3126 has 54K on it though for reference, possible that it has been upgraded I dunno. I don’t recall oil press being on the high side so likely not the new pump in there. And yes that is the reman p/n I am looking at as well.This is interesting. First off, I watched a video of a guy who owns a motor home with a cat engine. 3116 or 3126. He had low oil pressure at 90k miles and put in a new oil pump and bearings. That fixed everything. My truck idles cold at 40 psi. Cruising cold at 60 psi. Warm idle at 17 psi. All within spec. My neighbor has a c7 in his lmtv and has 80 at cold idle and like 60 cruising warm and 40 at warm idle. In other words, more oil pressure than me. So I went to Empire Cat in Tucson to inquire about a new oil pump. She required my engine serial number which I had. If I recall correctly, the original oil pump part has been superseded like 4 times. The latest iteration is a Gerotor type. (is the original not a Gerotor?) She acted like they knew there was premature pump wear and changed the style of pump. I dont know this to be fact, but she was knowledgeable. There are two pumps for a 3116. A new and a reman. Both are like $1800 but the reman returns $1100 with your core making it $700 and change in the end. So, I would be curious to know how difficult changing the pump is and which pump you go with? I may be doing the same someday.... is this the pump you are getting? Thanks, and would love to see more pics!
20R-7247: PUMP GP-GRTR | CatParts Store
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