Thanks S&S for sharing this video with us! To learn more about S&S see their Tech Resources. This information is important when trying to identify a vehicle, order the correct parts for an engine, or when trying to identify the type or age of parts when restoring a vintage motorcycle. We hope to have given you some insight for deciphering the S&S system for coding and identifying powertrain components. A Harley VIN is composed of 17 characters (digits and capital letters) that act as a unique identifier for the vehicle. The Harley VIN serves as the vehicle’s fingerprint, as no two vehicles in operation have the same VIN. However, S&S will have to be contacted for this specific information, as it is not listed in any S&S publications. The vehicle identification number (VIN) is the identifying code for a specific vehicle. The S&S flywheel serial numbers can even help determine when the flywheels were made, whom they were originally sold to, or how the wheels were originally balanced.

However, the number will be upside-down when viewed through the timing hole.Ī typical S&S flywheel number code may look like this: For these engines, disassembly is not necessary to view the number. When you do so, you grab a standard history of the automobile, including claims of burglary, damage, or accidents.

On Evolution and earlier engines, the flywheel code can be viewed from the timing hole towards the top of the left side crankcase. When I Do A Vin Check On My Harley It Says Invalid Vin Number Prior to making a purchase a brand-new or previously owned auto, you should consistently examine the VIN. The S&S flywheel serial number can be found on both flywheel halves. Identification code charts can be found in any current S&S catalog. A typical S&S engine serial number may look similar to this: The engine serial number is located on, both, left and right side crankcase halves. Some letters are not used because they can be easily confused with other letters or numbers. The cases and flywheels are marked by a process called pin stamping.Įvery S&S serial number is bookcased by an asterisk to help protect from the number being illegally altered. S&S uses identification stampings for engine assemblies, crankcase sets, and S&S flywheel assemblies. Serial numbers are important when trying to pinpoint key details like build info, engine displacement, bore and stroke, model year, and any other service or possible recall history.

Photos, along with images of engine number, frame number and VIN plate may be helpful. Articles on Harley-Davidson How-to and Moreĭennis Schaefer and S&S Cycle have put together an excellent video for understanding and deciphering the S&S Cycle system for coding and identifying their powertrain components. Vin Id for pre 1969 HD sprint Harley davidson Sprint Can anyone tell me what how to interpret this vin 65h5079 I think it may be a 65 sprint if anyone can help I would appreciate it.

Harley Transmission Serial Numbers