(iSeeCars) – The vehicle identification number (VIN) is a 17-character code that tracks every mainstream car built for the U.S. market since 1981. Because manufacturers assign these codes under rules ...

A VIN — or vehicle identification number — is a 17-figure sequence of numbers and letters exclusive to your vehicle. It’s used by entities like the Department of Motor Vehicles, your auto insurance ...

An engine number is a special alphanumeric code that is imprinted on a motorcycle engine, and its primary use is as a unique identifier for the engine. Manufacturers differ on what is included, but ...

There are several instances where knowing the location of cylinder number 1 matters, especially for DIY enthusiasts. It's not just trivia, but crucial when diagnosing engine misfires, replacing spark ...