Any EPC experts on here? R vs A prefix part numbers for oil pans? - PeachParts Mercedes-Benz Forum

JHZR2 · #1 11-11-2018, 03:17 PM

Looking for info on the following part:
R6060140802

Note it starts with "R" as opposed to "A". What do those mean???

My findings thus far indicate that this was used in 606 engines in W210.020, but when I use the online EPCs, I find that those cars show part A6060100213 and A6060100413.

Sites like this potentially lead me to think that there is a cross reference:
https://www.autoparts24.co.uk/item/A_0061_6060100413B/

Note how the markings on the pan indicate R6060140702, but the site shows the part as A6060100413

In reality I need whatever can reasonably and cost effectively fit A6030141602, the pan for my w126 350SD. But the whole part number thing is very confusing, and there arent many good resources available. Much is either searching images or russian sites. None work that well.

Any information would be very much appreciated.

Thanks!

dieselbenz1 · #2 11-11-2018, 03:47 PM

A means the part is not built by Mercedes but out sourced. Don't have a clue about R.

JHZR2 · #3 11-11-2018, 04:33 PM

Interesting. Didnt know that. So Axxxxxxxxxx part numbers mean they have another OE manufacturer - great to know!

My guess is that R numbers mean a restart of a set of part numbers after some production run ended. But since I cant find how to cross-reference parts, its hard to tell. All I know is some places hint at a cross reference.

I had thought that perhaps A applied to "automobile" or something like that, while other part number prefixes applied to other applications, such as truck, other powertrain, generation, etc. But thats only my speculation. I did find some discussions on there being specific parts (oil pans actually) for Unimogs and Snow Cats and whatnot...

Stretch · #4 11-11-2018, 05:12 PM

I think you're best off having a look at this thread and the links in post #4

http://www.peachparts.com/shopforum/diesel-discussion/309338-deciphering-mercedes-part-number.html

There "A" is defined as passenger car parts

No mention of "R" though

Frank Reiner · #5 11-11-2018, 05:21 PM

An "R" prefix denotes a casting number.

97 SL320 · #6 11-11-2018, 05:26 PM

And two or more part numbers could have the same casting number if final machining is different.

barry12345 · #7 11-11-2018, 05:41 PM

Cost effective might be to aquire a good used pan from a tired out 3.5. Depends on the new part price I suppose.

I also thought there was a subtle difference between the pans used on the 3 liter versus the 3.5 but unsure of this at the moment.

JHZR2 · #8 11-11-2018, 06:24 PM

Quote:

Originally Posted by barry12345

Cost effective might be to aquire a good used pan from a tired out 3.5. Depends on the new part price I suppose.

I also thought there was a subtle difference between the pans used on the 3 liter versus the 3.5 but unsure of this at the moment.

That’s exactly what I would do if I could find one. But I can’t. All the salvage yards I called that had core engines didn’t have the pans.

The difference with 3.0 and 3.5 is a bumpout on the side of the pan on the 3.0. Nobody is really sure why it’s there. That pan would be ok too, but can’t find one of those cost effectively with the bumpout included.

The gasket part number for 606 is the same as now used on 603. So the holes are the same at least.

JHZR2 · #9 11-11-2018, 06:29 PM

Quote:

Originally Posted by Frank Reiner

An "R" prefix denotes a casting number.

Quote:

Originally Posted by 97 SL320

And two or more part numbers could have the same casting number if final machining is different.

So is the casting number like a serial progression?

So R606 014 08 02

Was the casting after R696 014 07 02? (I’ve seen some of those too).

Interestingly, the 3.0L with bumpout is A603 014 08 02 in the EPC I’ve seen.

jsp300D · #10 11-11-2018, 06:44 PM

R usually means Repair.

Mxfrank · #11 11-12-2018, 09:23 AM

Quote:

Originally Posted by JHZR2

That’s exactly what I would do if I could find one. But I can’t. All the salvage yards I called that had core engines didn’t have the pans.

The difference with 3.0 and 3.5 is a bumpout on the side of the pan on the 3.0. Nobody is really sure why it’s there. That pan would be ok too, but can’t find one of those cost effectively with the bumpout included.

The gasket part number for 606 is the same as now used on 603. So the holes are the same at least.

The extension on a 603 is there to add an extra liter of oil capacity. Usually just found on turbo 602 and 603 pans.

JHZR2 · #12 11-12-2018, 10:13 AM

The turbo 603.97 and subsequent 606 engines don’t have it. Think there’s a more aggressive bump in on the front of the pan in the 3L 603 pans that drive the necessity.

Curious if the 87 300sdl and 91 350sd had the same oil capacity overall.

Mxfrank · #13 11-12-2018, 11:49 AM

The nose of the pan also has a relief to clear the sway bar on these cars. Probably not the case with other models.

JHZR2 · #14 11-12-2018, 01:19 PM

Quote:

Originally Posted by Mxfrank

The nose of the pan also has a relief to clear the sway bar on these cars. Probably not the case with other models.

Agree. That pushed the requirement for the bumpout, as it cuts into the nose quite a bit. My 603.97 doesn’t have that.

Wonder what the capacity difference is.