mille_3

iTrader: (1)

Hey guys. Anyone have any idea which oil filter fits an f-body oil pan? The stamping on the oil pan is 12558899. Supposedly it's a 13/16-16 filter, but it will not spin on and wants to strip the threads instead.

I have searched but not much luck.

pdsq98gt

If it's new then it's an ac delco pf48. If it came off of an f-body then it's a pf46.

mille_3

iTrader: (1)

It is a new oil pan. But the problem is that a PF48 is M20x1.5 and is too small and the PF46 is 13/16-16 and "almost" fits but wants to strip the threads. I don't get it? Any other possibilities? I've been trying NAPA's filter and cross referenced the PF part numbers to their Napa gold filters if that makes a difference. Threads should be the same.

mille_3

iTrader: (1)

Find this very odd since the oil pan is for the 4th gen F-body, but after trying many different filters, it turns out that a 5th gen Camaro 6.2L filter fits. FYI for anyone else that may have the same issue.

LS1-450

iTrader: (33)

WOW, that's strange. Sounds like it was either a 5th gen pan to begin with or the manufacturer of the oil pan screwed up.

mille_3

iTrader: (1)

The part number I ordered was 12628771 but the stamp on the pan is 12558899. Not sure what the deal is there. I even called the dealership where I bought the pan from and they told me the same thing...PF48 or the AC Delco part 19210283 but it's still a 13/16-16 which does not fit.

So it's one of two things...either the manufacturer screwed up and put the wrong fitting on there or all new pans now come with the 5th gen fitting. I don't know, I'm just happy I don't have to run to the parts store for an oil filter anymore.

bigmandengo

iTrader: (21)

I have the same part# oil pan and the 5th gen filter which is a pf48 is what I have to use.

mille_3

iTrader: (1)

That's really strange, because a PF48 is M20x1.5 which is way too small. The filter I got to spin on is M22x1.5 for a 5th gen LS3 camaro. I may be mistaken, but the PF48 is for the 4th gen.

gofastwclass

iTrader: (2)

What happened to you happened to me...
I discovered the hard way that all new from GM pans use 22mm thread metric filters. I'm using a cross reference for a GEN IV engine on my Thunderbird with a new GM pan in a 1997 car and a 2000 engine running a 2002 program on an 01 PCM... (confused yet - I think I am)

I keep a sheet of all this type stuff in each car so I don't have to think hard about it on the road if something breaks. Thankfully, I've never needed it.

jalper

iTrader: (9)

What is the best oil filter, does the Corvette and the F-body take the same filter

foler

I need to use fbody ls1 oil pan on my ls376/480 crate engine. This engine want pf48 oil filter. Do I can use this oil filter on this ls1 fbody oil pan?

Jimbo1367

Good idea. I always relied on my memory. Not too bright in my case. LOL. I'm getting old. Thanks for the idea.

I would think if the pan came from a F-body (not GMPP) the PF46. My GMPP Fpan used a PF48, but its 1 1/2-2 yrs old. Maybe GM used the PF48 nipples until they ran out. If your pan is new try a Fbody5 filter.

bczee

iTrader: (12)

I had the same problem with my Retro LSx oil pan.. it came with a 22mmx1.5mm filter adapter.. I just went an order a 20mmx1.5mm adapter for a 4th gen car.. LS1

GM Part #12552357 / $11.60 Retail.. got it for $8.14.. problem solve. Now I can use a standard oil filter or any other one off the shelf for a LS1.

If you want to use either the 46 or 48 filter, just to use the correct adapter for what ever oil filter you want to use.

cmac06

iTrader: (16)

This saved me, just wanted to add that you'll need 24mm socket to get the errant stud off. I didn't have one, so ended up buying another set... I used a 20 allen socket to get the replacement on FWIW.