Decoding Toyota part numbers
“ The logic for Toyota part numbers is like this (generally, with some exceptions):
1. First five digits is the component or system area that you are dealing with so in your example 31210 is a part number category that generally corresponds to the first 5 digits of a ten digit Toyota part number (PNC as we call it). These correspond most of the time, but there are sometimes where the PNC number is not the same as the first 5 digits of the ten digit number.
2. 2nd set of 5 numbers indicates the vehicle usage and indicates generational aspects of the part number (engineering changes, supplier changes, etc) (ie: -6, -61, -66, -90, -17, -54 indicate Land Cruisers). You sometimes also have applicability of numbers across vehicles (in the case of tools and oil filter etc.).
3. Sometimes you have a -77, -83, -84, -C0, etc placed after the ten digit number and those suffixes indicate things like "remanufactured, locally sourced, or color codes.
So a good example of a Land Cruiser number: 16110-61081-77: (water pump for a late 2F): Notice, for example, that the PNC is actually "16100" but the actual part for the water pump is "16110".
Hope that helps.”
“ If you have access to a complete EPC, yes, you should have no problems deriving the entire part number.
Some sites do not give you entire part number but only portions of them.
No sites will show you part supersessions because that is live information being update by TMC directly.”
“ That's the first five digits (which is also called a PNC).
The whole part number: 17501-61021
Notice that the first 5 digits in the 10 digit part number do not correspond with the PNC. That's the difference that makes it tough to decipher some things to folks new to the Toyota Part Numbering system or to folks with out EPC access.”
“ toyo DIY is *not* the complete EPC I'm presuming? It is quite extensive though and for most instances gives the correct results.”
“ For completeness.. from a nuts and bolts perspective the part number often gives the thread and fastener length details.. I have some images here that are useful for decoding those.”
Source:
- https://forum.ih8mud.com/threads/making-sense-of-toyota-part-numbers.760777/, accessed 2023-05-16
- https://photos.google.com/share/AF1QipO-2JARTh1BqVmLgpMyyGdTrBFjiwhgbdskQtIiK3Yj8_rtc23P5zezLOzcChuzow?key=QXJaWlFnMUpwSFBGanZ2MkRhUkpLTnUxU3VyYVFB, accessed 2023-05-16
- https://www.youtube.com/watch?v=bqla5Cvx698, accessed 2023-05-16