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HD Vehicle Identification Numbers

HD Vehicle Identification Numbers

How H-D vehicle identification numbers work, and how to decode them.

To understand vehicle identification numbers (VIN) is crucial when buying an old Harley. It’s the only way to check if the papers belong to the bike and vice versa, and a lot of trouble and heartache can be avoided by doing so.

The VIN is the basis to set out from when shopping for spares and when researching parts in old parts catalogs. As the system has changed a couple of times in the last 117 years, we provide an overview.