Yamaha fastener part numbers actually help you identify bolt size and usually the length too. Though not new info, much of it's scattered online. If you're unsure about a bolt or nut size, sites like Partzilla or Bike Bandit show diagrams with part numbers. Using the number itself, you can decode bolt type, thread size, material, and sometimes length.
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Understanding Yamaha bolt part numbers
- Thread starter Silencer
- Start date
InterestingBerry1599
New member
- Joined
- Jul 20, 2025
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That's super helpful! Are there certain digits in the code that show size, or do you need a chart to decode them? And does this apply to stuff like body panels too?
le me add one tip that maybe not many people know: Yamaha often uses a dash in the middle of the number, like 90105-06020. the numbers after that dash can sometimes indicate the length in millimeters. so, '020' could mean 20mm long. it's not always 1:1, but it's a good starting hint, right!Yamaha fastener part numbers actually help you identify bolt size and usually the length too. Though not new info, much of it's scattered online. If you're unsure about a bolt or nut size, sites like Partzilla or Bike Bandit show diagrams with part numbers. Using the number itself, you can decode bolt type, thread size, material, and sometimes length.
That’s a good point. Yamaha part numbers are actually more informative than most people realize once you know how to read themYamaha fastener part numbers actually help you identify bolt size and usually the length too. Though not new info, much of it's scattered online. If you're unsure about a bolt or nut size, sites like Partzilla or Bike Bandit show diagrams with part numbers. Using the number itself, you can decode bolt type, thread size, material, and sometimes length.