how do MOPAR part #s work ? can you tell the year by the first few numbers ?

[rav440]

how do the MOPAR parts #s codes work ?

do the numbers tell you what year they are from  ?

for instance 3751067 is the part # from a 73-74 B body HP drivers side exhaust manifold so does 37 mean 1973 ? or does the 3 mean 1973 



thanks RANDY

[69CoronetRT]

General rule of thumb for parts numbers:

First number:
1=50's
2=60's
3=70s

Second number = first year of use

So if 28 are the first numbers, it's probably from a '68 model.

When you get into the 70's numbers this changes as 1970 model year parts tends to start with 34. If you can remember that, then a 37 number would probably be a '73 PN.

The numbering system is not exact, especially if the PN carries over for a couple of years, but will at least get you close.

[TUFCAT]

General rule of thumb for parts numbers:

First number:
1=50's
2=60's
3=70s

Second number = first year of use

So if 28 are the first numbers, it's probably from a '68 model.

When you get into the 70's numbers this changes as 1970 model year parts tends to start with 34. If you can remember that, then a 37 number would probably be a '73 PN.

The numbering system is not exact, especially if the PN carries over for a couple of years, but will at least get you close.

    That's exactly correct in theory -  and the best possible answer anybody could give. 

[Ghoste]

Although like most things Mopar, it isn't absolute.  (but pretty close)