- The first three characters of the VIN identify the manufacturer of the travel trailer.
- Each manufacturer is assigned a unique code by the National Highway Traffic Safety Administration (NHTSA).
- For example, "4XR" could represent "Thor Industries, Inc".
- The fourth character of the VIN indicates the type of vehicle.
- For travel trailers, this character is usually "3", which signifies a recreational trailer
- The fifth character of the VIN denotes the weight class of the travel trailer.
- Different weight classes are assigned based on the trailer's Gross Vehicle Weight Rating (GVWR).
- "A" through "I" represent different weight classes.
- The sixth character of the VIN indicates the model year of the travel trailer.
- It follows the standard model year coding system used in the automotive industry.
- The seventh character of the VIN represents the assembly plant where the travel trailer was manufactured.
- Each manufacturing plant is assigned a unique code.
- The remaining characters of the VIN (usually the last seven digits) comprise the serial number of the travel trailer.
- This unique serial number distinguishes each trailer from others produced by the same manufacturer in the same model year.