Yamaha Part Numbers. Learned Something New.

[Jim]

Been on the search for parts for my baby RD for quiet some time now. It taught me something new today.
The kicker boss for the RD is P/N 337-15621-01-00. The 337 is obvious, it's the model designation number for the CS5E (baby RD200). The next series actually denotes a Boss, Kick Crank. While searching for it, I noticed a pattern. Here's the CS5E parts breakdown....

Here's the kicker boss off our XS650's (1980). The 2MO is a little odd, as I know my bike is a 2FO. Anyway....
See the pattern? The second set of numbers is the same as the baby RD, 15621. So I did some looking. That same 15621 applies to every random bike I looked up. DT250, the same 15621. SR500... same number.

So apparently, the second set of numbers, in Yamaha land points to a specific item shared across a whole shitload of bikes. Even though the kicker boss is wildly different in size across all models, it uses the same main part number. The only way to tell the difference is by the first set of numbers, the model designation. Sumbitch, old dogs can learn new tricks. Who knew....

Anyone else run across this on other Yamaha parts?

 

[ssjody]

Anyone else run across this on other Yamaha parts?

I hadn't noticed that but you're right. Interesting

 

[FB71]

Ford parts are the same way. Prefix - Base# - Suffix. Base# is the same for the same part across all products. Prefix denotes Decade/Year/Product line. Suffix denotes engineering revision. Using old Ford #s, an example would be F4TZ-6015-A; F4=1994, TZ=truck, 6015=engine block, A=first version. All parts designed in 1994 start with F4. All truck-only parts are TZ. All engine blocks, for all vehicles, are 6015.

 

[Jim]

Boeing starts all their part numbers with BAC and the first letter of the part. For instance, an 1/8th" AD rivet would be BACR-AD4-3.

BAC= Boeing Aircraft Corporation
R= rivet
AD= material (2117T aluminum)
4= 1/8" dia (in 32nd's")
3= 3/16" length (in 16th")
BACB is a bolt.
BACC is a clamp
It's not a bad system.

 

[Wagner73]

Been on the search for parts for my baby RD for quiet some time now. It taught me something new today.
The kicker boss for the RD is P/N 337-15621-01-00. The 337 is obvious, it's the model designation number for the CS5E (baby RD200). The next series actually denotes a Boss, Kick Crank. While searching for it, I noticed a pattern. Here's the CS5E parts breakdown....

View attachment 365711


Here's the kicker boss off our XS650's (1980). The 2MO is a little odd, as I know my bike is a 2FO. Anyway....
See the pattern? The second set of numbers is the same as the baby RD, 15621. So I did some looking. That same 15621 applies to every random bike I looked up. DT250, the same 15621. SR500... same number.


View attachment 365712


So apparently, the second set of numbers, in Yamaha land points to a specific item shared across a whole shitload of bikes. Even though the kicker boss is wildly different in size across all models, it uses the same main part number. The only way to tell the difference is by the first set of numbers, the model designation. Sumbitch, old dogs can learn new tricks. Who knew....

Anyone else run across this on other Yamaha parts?

Thanks for illustrating this. I had "noticed" this same convention when I was searching different model's headlamp shells and ancillary components, but I missed the significance...forest for the trees.

I also learned something else from a previous post by @650Skull that helps in searching... for example if the suffixes on the p/n 2M0-15621-00-00 are 00-00 as they are, search only with the prefix and native number i.e. "2M0-15621"; search results will typically be better and more concise. Don't know if it applies to different suffixes as well e.g. 01-00.

 

[dave_a]

Jim, in the back room of the dealer's parts department putting the " middle 5" digit" parts together....made it a little easier in planning shelving, boxes, and generally storing similar sizes parts.

You can imagine what a clusterfluff it could become trying to store alpha/numerical? It'd wind up by model, with gaskets next to cranks and clutch baskets etc.
Chaos!

 

[650Skull]

Jim, in the back room of the dealer's parts department putting the " middle 5" digit" parts together....made it a little easier in planning shelving, boxes, and generally storing similar sizes parts.

You can imagine what a clusterfluff it could become trying to store alpha/numerical? It'd wind up by model, with gaskets next to cranks and clutch baskets etc.
Chaos!

Is this why the parts store comes out with several different parts when I ask for a part no instead of the vehicle code.

I always take the part from my vehicle to compare what they want to give me. Invariably they have to go back to find the one I have in my hand for comparison

 

[gunk]

Worked as a parts guy in several bike shops in the m,id 70's to mid 80's Most fun I ever had working for a living.. Here's the breakdown of what every numeral in a Yamaha part no. denotes. It tells
a parts person all they need to know. Plus back in the day Yamaha and other manufacturers had real good cross reference charts as well. Honda Suzuki had similat systems. Honda's model designation was after the first set of numerals which denoted part description,then model. Once you've got this it makes parts hunts a lot easier.

https://www.yamaha-enduros.com/index.php/workshop/decoding-yamaha-part-numbers