Engine model numbers

6805 Views 17 Replies 11 Participants Last post by Dr. Sternschnuppe, Jul 24, 2015

mogmad

Discussion Starter · Apr 8, 2009

Help me fellow mog owners!!

Really geeky question but I am hoping someone can help me!

Say an engine type is 366A and the model number is 366.949, what do the 3 digits (949) after the 366 stand for? Driving me mad and cant find answer anywhere!!

Looking forward to hearing from someone!

Mogmad!

1 - 18 of 18 Posts

Mogasaurus

· #2 · Apr 8, 2009

mogmad said:
Say an engine type is 366A and the model number is 366.949, what do the 3 digits (949) after the 366 stand for? Driving me mad and cant find answer anywhere!!

It doesn't really mean anything - it's just a model number designation.

I'm not that familiar with the OM366 but the OM352 and 352A come in approx 11 configurations (7 for the normally aspirated and 4 for the turbo). Each 'dot number' designates a different variation - HP, ect.

OM352
353.902 2550 RPM 62KW 210Nm (rated RPM, HP, Torque)
353.907 2800 RPM 92KW 348Nm
353.940 2800 RPM 81KW 314Nm
353.980 2800 RPM 81KW 314Nm (must be some internal difference from .940)
353.949 2600 RPM 81KW 363Nm
353.961 2800 RPM 96KW 363Nm
353.962 2600 RPM 70KW 295Nm

OM352A
353.957 2600 RPM 92KW 392Nm turbo
353.973 2600 RPM 92KW 392Nm turbo (internal difference from .957 ??)
353.958 2600 RPM 110KW 461Nm turbo 16:1 comp (others 17:1)
353.959 2800 RPM 124KW 471Nm turbo 16:1

ALL M-B engines, gas and compression ignition, use that same model system.

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TRUKTOR

· #3 · Apr 8, 2009

Here is a little list of some OM366 A stuff. Probably not much help, but here
it is.

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pelican

· #4 · Apr 9, 2009

Hey guys,

This must sound very odd for your hears (I know you are reading indeed...), but my OM352 is 341.934.
My 406 was made by MB in Argentina in 1974, and so far, this is the one and only PN I have.
To complete the enigma, I don't know if there is any other model besides this in South America. I believe there really exist.

Cheers,

Luis

Mogasaurus said:
It doesn't really mean anything - it's just a model number designation.

I'm not that familiar with the OM366 but the OM352 and 352A come in approx 11 configurations (7 for the normally aspirated and 4 for the turbo). Each 'dot number' designates a different variation - HP, ect.

OM352
353.902 2550 RPM 62KW 210Nm (rated RPM, HP, Torque)
353.907 2800 RPM 92KW 348Nm
353.940 2800 RPM 81KW 314Nm
353.980 2800 RPM 81KW 314Nm (must be some internal difference from .940)
353.949 2600 RPM 81KW 363Nm
353.961 2800 RPM 96KW 363Nm
353.962 2600 RPM 70KW 295Nm

OM352A
353.957 2600 RPM 92KW 392Nm turbo
353.973 2600 RPM 92KW 392Nm turbo (internal difference from .957 ??)
353.958 2600 RPM 110KW 461Nm turbo 16:1 comp (others 17:1)
353.959 2800 RPM 124KW 471Nm turbo 16:1

ALL M-B engines, gas and compression ignition, use that same model system.

Mogasaurus

· #5 · Apr 9, 2009

pelican said:
Hey guys,

This must sound very odd for your hears (I know you are reading indeed...), but my OM352 is 341.934.

Luis, there were many 352 variants made, both in Germany and other places outside EU under license to M-B. There were marine types, stationary types, ect. Your motor may be a Argentinian build-under-license unit if it was originally fitted to that 406 -or- it may be a replacement, originally designed for something else. The ones I originally listed were the units factory installed in German built Mogs, but I have a list of over 100 different OM352 model numbers with 341, 352 and 353 designations.

The 341.934 is listed as a 62KW (84HP) variant and is referenced as built in "AMS". I'm not familiar with that county abbreviation - very possibly it refers to Argentina. (AMS is more widely known as the international airport code for Amsterdam's Schiphol

)

Mogasaurus

· #6 · Apr 9, 2009

mogmad said:
Help me fellow mog owners!!

Really geeky question but I am hoping someone can help me!

Say an engine type is 366A and the model number is 366.949, what do the 3 digits (949) after the 366 stand for? Driving me mad and cant find answer anywhere!!

Looking forward to hearing from someone!

Mogmad!

Mogmad, to answer your original question, my reference material says the 366.949 is a 16.5:1 compression, 92KW (125HP) unit.

rj9002

· #7 · Jul 22, 2015

Need some expert help.

I am a new Unimogger. I am the proud owner of a 1967 MB 404.114. I am looking to upgrade the M180 motor to a M130. From reading through the forum (still reading) I believe that I need a M130.925 engine. I have a line on a possible upgrade engine, but it is a M130.980. Will it work? What does the ".980" or ".925" mean for getting everything to line up? Or does it matter.

Any help would be greatly appreciated.
Randy

Dr. Sternschnuppe

· #8 · Jul 22, 2015

rj9002 said:
Need some expert help.

I am a new Unimogger. I am the proud owner of a 1967 MB 404.114. I am looking to upgrade the M180 motor to a M130. From reading through the forum (still reading) I believe that I need a M130.925 engine. I have a line on a possible upgrade engine, but it is a M130.980. Will it work? What does the ".980" or ".925" mean for getting everything to line up? Or does it matter.

Any help would be greatly appreciated.
Randy

The M130.980 engine is from 280 SE (w111), it is with fuel injection (M130.925 have carburetor) and it has CR=9,5:1/output 160 PS (M130.925 has CR=7,8:1/output 110 PS).

choprboy

· #9 · Jul 22, 2015 (Edited)

XXyyy.zzz

XX - M = gas engine, OM = diesel
yyy - major engine type (family/development generation)
zzz - minor engine number (specific fitment, internal modifications, rating)

i.e. All M123 engines will have the same arrangement, number cylinders, basic block, and construction. Engines M123.456 and M123.789 may differ slightly in bore/head compression,crank throw, internal/external attachments, etc., which affect the final engine power rating. To add a bit more confusion... the same engine major/minor number fitted into different chassis may have different power ratings.

M130 engines come in both fuel injected and carbureted versions (unlike, it seems, almost every other MB engine which has a different major engine numbers for the injected vs. carbureted). The injected versions will not fit unless you are willing to do major cab and bell housing modifications (due to the injector pump hanging off the side of the engine).

An incomplete, non-exhaustive, quite possibly wrong in horrible ways, list of M130 engine configurations:
M130.920 - carbureted, 9.0:1, 120-140hp, 68-72 280S
M130.921 - carbureted, 8.7:1, 125hp, 250C?
M130.923 - carbureted, 9.5:1, 110-130hp, 70-76 250, 69-76 250C?
M130.925 - carbureted, 7.8:1, 110hp, unimog 404.0
M130.933 - carbureted? 8.7:2, 118hp, 68-72 250?
M130.980 - injected, 9.5:1, 160hp, 67-71 280SE, 68-71 280SEL
M130.981 - injected, 9.5:1, 170hp, 68-70 300SEL
M130.983 - injected?, 9.5:1, 170hp, 68-71 280SL
M130.984 - injected?, 8.7:1, 140hp, 68-72 280SE/280SEC/280SL

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ACAD_Cowboy

· #10 · Jul 22, 2015

Now lets spice it up a bunch, MB uses OM for Otto Motor and B for Benzine or gasoline engine.

As discussed above the engine number has two parts, the major number and the minor number. All engine of a major type share common architecture and are gross dimensionsaly the same. The minor number is what makes it specific with a further step down with the sequence number.

So what does this mean for a mog owner looking to spice it up? Actually a lot. So lets your generic mog has a type ABC engine, say ABC.123 and there is a different application that also has an ABC but it's type ABC.456; the components that make the ABC.123 mog specific are contained in the .123 minor number where as the .456 may not have things like mog specific oil pan/pump or some weird reversed geometry part designed specifically to fit the mog due to interference from the foot well etc. The sequence number is also dreadfully important as it tells you when in production the unit was made and sometimes there are upgrades that are not backward compatible, say after production number 123456 they changed the cooling passages in the head and now need a new head gasket because the passages are now square instead of round, sometimes these are improvements that can effect the whole range and sometimes they are restrictive.

Can you build a dogs breakfast engine? Sure but in the case of MB and mog, it takes some knowing about what makes the mog stuff mog stuff and knowing why non-mog stuff won't always give you the best results.

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m37charlie

· #11 · Jul 23, 2015

ACAD_Cowboy said:
Now lets spice it up a bunch, MB uses OM for Otto Motor and B for Benzine or gasoline engine.
.

Um, don't think so. Otto cycle is gasoline. OM means "oel motor" = diesel.

Charlie

rj9002

· #12 · Jul 23, 2015

OK. So if I understand you correctly. The M130.980 will not fit into my 404.114 without modifying the cab and bell housing due to the injector pump. Correct?

Guess I just got excited at the extra HP. : )

Thanks Guys

BloodyGerman

· #13 · Jul 23, 2015

m37charlie said:
Um, don't think so. Otto cycle is gasoline. OM means "oel motor" = diesel.

Charlie

Exactly

MegaMog

· #14 · Jul 24, 2015

2

choprboy said:
M130 engines come in both fuel injected and carbureted versions (unlike, it seems, almost every other MB engine which has a different major engine numbers for the injected vs. carbureted). The injected versions will not fit unless you are willing to do major cab and bell housing modifications (due to the injector pump hanging off the side of the engine).

An incomplete, non-exhaustive, quite possibly wrong in horrible ways, list of M130 engine configurations:
M130.920 - carbureted, 9.0:1, 120-140hp, 68-72 280S
M130.921 - carbureted, 8.7:1, 125hp, 250C?
M130.923 - carbureted, 9.5:1, 110-130hp, 70-76 250, 69-76 250C?
M130.925 - carbureted, 7.8:1, 110hp, unimog 404.0
M130.933 - carbureted? 8.7:2, 118hp, 68-72 250?
M130.980 - injected, 9.5:1, 160hp, 67-71 280SE, 68-71 280SEL
M130.981 - injected, 9.5:1, 170hp, 68-70 300SEL
M130.983 - injected?, 9.5:1, 170hp, 68-71 280SL
M130.984 - injected?, 8.7:1, 140hp, 68-72 280SE/280SEC/280SL

Hmmm... Interesting! So based on this info it would appear that my M130 which has engine block no. 130.923 was transplanted to my 404 from a 250 or 250C, but it has a 9.0:1 head from a 280S. I guess my engine is an M130 hybrid!

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choprboy

· #15 · Jul 24, 2015

rj9002 said:
OK. So if I understand you correctly. The M130.980 will not fit into my 404.114 without modifying the cab and bell housing due to the injector pump. Correct?

Guess I just got excited at the extra HP. : )

Thanks Guys

Yes, it will not fit (or so others have stated in the past, I have not had my hands on one personally). It should bolt to the bellhousing, but would require significant modifications to other systems that is probably out of the fabrication range of most people. As ACAD posted, there are other differences between engines, such as oil pans, but those are usually pretty easy to swap between engines.

choprboy

· #16 · Jul 24, 2015 (Edited)

MegaMog said:
Hmmm... Interesting! So based on this info it would appear that my M130 which has engine block no. 130.923 was transplanted to my 404 from a 250 or 250C, but it has a 9.0:1 head from a 280S. I guess my engine is an M130 hybrid!

Yeah... seems that way... or my list is "quite possibly wrong in horrible ways"....

For a M130.923, pulling from a couple sources (I have never been able to get EPC to let me register and log in... so this could very well be just a bad of info), your engine -12-003717 would seems to have come from a MB 250 114.011 or 250C 114.023 and have had a 130-010-91-20 or 130-010-24-21 head originally (up to engine -12-005298) if it was a US bound.

Oddly... here is another 250C M130.923 engine with the "280S" 130-016-12-01 cylinder head...
http://www.benzworld.org/forums/vintage-mercedes-benz/1711834-1972-250c-engine-noise.html

Edit: On second pass... the 130-010 numbers given might be partially assembled heads (guides/etc.), not the bare casting number.

Dr. Sternschnuppe

· #17 · Jul 24, 2015

MegaMog said:
Hmmm... Interesting! So based on this info it would appear that my M130 which has engine block no. 130.923 was transplanted to my 404 from a 250 or 250C, but it has a 9.0:1 head from a 280S. I guess my engine is an M130 hybrid!

Huh.

Dr. Sternschnuppe

· #18 · Jul 24, 2015

choprboy said:
An incomplete, non-exhaustive, quite possibly wrong in horrible ways, list of M130 engine configurations:
M130.920 - carbureted, 9.0:1, 140hp, 68-72 280S
M130.921 - carbureted, 8.7:1, 125hp, 250C?
M130.923 - carbureted, 8.7:1, 130hp, 70-76 250, 69-76 250C?
M130.925 - carbureted, 7.8:1, 110hp, unimog 404.0
M130.933 - carbureted? 8.7:2, 118hp, 68-72 250?
M130.980 - injected, 9.5:1, 160hp, 67-71 280SE, 68-71 280SEL
M130.981 - injected, 9.5:1, 170hp, 68-70 300SEL
M130.983 - injected?, 9.5:1, 170hp, 68-71 280SL
M130.984 - injected?, 8.7:1, 140hp, 68-72 280SE/280SEC/280SL

Info from EPC:
Carb.
130.920 - 140 PS
M130.921 NV - 125 PS
M130.922 - 110 PS (Unimog)
M130.923 - 130 PS
M130.924 - 121 PS, it is an industrial version of the M130
M130.925 - 110 PS (Unimog)
M130.933 NV - 118 PS

Inj.
M130.980 - 160 PS
M130.981 - 170 PS
M130.983 - 170 PS
M130.984 NV - 140 PS

NV - niedere verdichtung (low compression) version of the standard engine with CR=8,0:1.

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