I thought I heard one time you could tell what year a part was made by the part number.Like if the number started with 28 it was originally used in 1968 and up.This was a way of telling if it was an original number or a newer,(possibly parts/vendor change),superseded number.Any truth to this and if so what,is the code or how do you tell? Thanks for any info!!

ball park, rule of thumb, not set in stone

add 40 to the first 2 numbers and youll get an approxiamate as to the first year it was used

works from late 50s thru 1970

71 part numbers usually started with 35

Tony, you're math isn't working...

#35 + 40 = 75? not 71

Please explain further...this is new to me.

alan

my match is better than your reading

i said it works til 1970

then i said 71 #s start with 35

i thought that would be obvious that since i said that formula worked til 1970, that 1971 didnt fall into that

but i just mentioned that 1971 parts usually start with a 35 for reference

i dont believe that the formula is scientific or planned by chrysler, i think it just worked out that way, and is a good STARTING POINT when trying to figure out a parts application

of course this isnt a rule and there are many exceptions, but it definately has helped me research part #s + put me in the ball park when trying to figure out their applications

tony

For the most part yes, but things got weird in 1970. Starting around 29xxxxx and then jumping to 34xxxxx

Also need to remember that some parts carried over from previous years so A part that was made for a much earlier car could end being used a decade later and if there was no change to the part it could still carry that much earlier number.

Ahhh...Ok....Me dumb....I understand better just re-reading your first post.....too many paint fumes for me today...

carry on.......

one way to look at is the lower the #, the earlier it tends to be in a particular series.Like anything else there are exceptions

as an example
pt #'s beginning with say 2200200 tends to be early 60's , where as pt #'s beginning as 2900200 tends to be late in the series in this case the 60's .
I've asked several long time Mopar parts dealers and they all seem to agree - there is/was no system.

then in recent years , they tend to use the same part # on an individul part , then just add a 2 letter alphabetical suffix at the end to show supersessions.
The original Pt # may be 54009000 , then followed by 54009000AB , AC, AD, AE and so on

I guess one of the easiest parts to see the pattern is with radiators; 2949054 for example.


Look at the radiator listings in the "white book" for year, part number and application........



MikeR

As I recall, the first number refers to the decade of production of whichever model/platform the part is made for...The second number is the year... For example a part for a 68 Coronet would start with "28XXXX", a 71 would be "31XXXX" etc... Not an expert, just offering...

hi
i understand your input but there really wasnt any pattern assigned to part #s + year application

there arent part #s starting with 310xxxx thru 330xxxx for cars,

like i said in my first post, rule of them, not always, ballpark only add 40 to the first 2 numbers

i dont understand how a 2 refers to the 1960s decade,
and like i had said earlier, once you hit the 1970s this "formula" doesnt work

i wish it was a predestined formula set up by chrysler, it really would have made iding parts by #s alot easier,
ford had a system that even let you know not only the year but the body + car it would fit

From what I have seen is that a 6 digit # is pre 1950, 7 digit #'s starting with 1 are 1950's, 7 digit #'s starting with 2 are 1960's, 7 digit #'s starting with 3 are 1970's. The second digit is the year in said decade, IE part #1465802 would be for 1954. Part #2768882 would be 1967. 1970 started most part #'s with 34*****. 1971 #'s 35***** and so on.
This doesn't hold true for all part #'s, but is a good reference or starting point.
Some part #'s were used for many years, mostly hardware items such as the #2467770 Brake pedal bushing still used til recently on PT Cruiser's and some mini van's.
Brad

Like Tony said,,,,,there will always be non conforming items to any of the suggested formulas.

example
3454390-391

outer door handles for 1969-70 B-body ( and maybe be 1968 as well, )

Thanks for the help and info guys.It should help me with my weekend plans to look at "some" parts.