Harley Davidson Engine Number Identification

Every Harley Davidson car has a unique identifier code called a VIN.

Harley davidson engine number identification. Unfortunately older Harley-Davidson identification numbers ran through a series of constant changes throughout the years making it difficult to identify early engine models. This list is unofficial and is not gospel only what I have been able to cross in various manuals web sites and dealerships. Harley Davidson VIN History.

Finding out what year a Harley Davidson engine was made can be important for a number of reasons. Before 1969 Harley-Davidson motorcycles used the engine number as the vehicle identification number VIN. The second table is Motorcycle ID Numbers 1981 and Later.

There is a star at the left and right of the sequence of characters. The third is Motorcycle ID Numbers 1970-1980. 1 Made in USA 2nd and 3rd digits.

However decoding an engines vehicle identification number can be challenging and confusing. Harley engines that were made before or in the 1960s have the model year of the engine as the first two numbers of the engine number which acts as a VIN. 17 digit VIN on the frame abbreviated VIN on the engine.

HD Harley Davidson 1 Weight Class 1 Heavyweight 4 Lightweight 8 Sidecar AA Model Designation K Engine Displacement K 1340 Shovelhead. Frame ID Numbers - 1981 and Later. Starting in 1981 and later the code for the year is a letter not a number.

Look for a four-digit production code in the last four digits of the VIN. HD Harley-Davidson 4th digit. The only other date code would be a introduction code which is either normal or mid-yearspecial.