- Most RVs will have two VIN numbers, one for the chassis and one for the finished RV unit. The most important VIN to know is typically the finished unit VIN, which describes information about the RV.
- The most common place to find the VIN is through the windshield on the driver's side, just like in a regular vehicle.
- The most important digit is that tenth digit, which is always the model year.
What Is A VIN?
If you can understand how the VIN identifies an RV/trailer then you will always be able to select (for rental/lease/purchase) the correct make and model year for the RV or trailer of your dreams. The VIN identifies the model year and serial number of a particular RV or towable trailer. Most of us think of a vehicle identification number (VIN) as just a series of random characters. However, each character in this highly structured code actually has its own meaning. In fact, deciphering these codes is a hobby for some car enthusiasts, including collectors who want to own one of the first or last cars to come off an assembly line. The NHTSA, National Highway Traffic and Safety Administration, defines the VIN format for all classes of vehicles. Today's standard VIN is 17 characters long but, for vehicles manufactured before 1981, shorter VINs were used. The VIN is typically located just above the bottom edge of the driver's side of the dashboard, just under the windshield. An interesting fact is that these numbers are also located throughout the vehicle in order to prevent the sale of stolen parts.
What Are Some Of The Common Locations For The VIN?
- Firewall of the vehicle
- Radiator support bracket
- Left hand inner wheel arch
- Steering column
- Guarantee & Maintenance Book
- Machined pad on front of engine
- Driver's door or post on passenger side
- Component parts; such as engine, frame, etc.
Later Year Models Also Include The VIN On These Locations
- Left instrumentation panel
- Dash plate by window
- Driver's door or post
From jumbo motor homes to towable pop-up trailers, all RVs will have a VIN assigned. However, the campers that slide into the back of a truck bed, known commonly as "Truck Campers" or "Slide In" or "Cab-Over" campers will only have a serial number for that specific unit instead of a 17-digit VIN.
RVs Might Have Multiple VINs
The first challenge comes from how an RV is built. Most RVs are built off of a chassis/incomplete vehicle that is manufactured by a third party. The RV manufacturer incorporates the incomplete vehicle body into the retail vehicle. For example, a manufacturer like Coachman will buy an incomplete truck from GM and build an RV on that chassis, a manufacturer like Gulfstream will buy an incomplete van from Ford to build its own Gulfstream RV. The problem that arises is that the chassis manufacturer has already assigned the incomplete vehicle a VIN. A second VIN is then assigned by the RV manufacturer to the completed vehicle. Therefore, caution should be exercised when decoding an RV VIN, because different details can be obtained from each separate VIN.
What You Need To Provide When Registering/Titling Your RV
When you are registering or titling your RV, you must use the finished unit VIN; the one found on the driver's side of the dash just below the windshield. It is the finished unit VIN that the manufacturers include on the original Manufacturer Statement of Origin (MSO), or Certificate of Origin (COO), when they deliver the new RV or towable trailer to the dealer. The MSO or COO is transferred from the dealer to the first owner so the RV can then be titled and/or registered.
RV VINs Don't Capture Optional Equipment & Customization
The second challenge is that, even though the 17-digit VIN assigned by the RV manufacturers will tell you a great deal about the basic model, floorplan and engine details you might expect, none of the optional equipment and customization on the vehicle is encoded. This limits the utility of VIN decoding since much of the monetary value and consumer interest in the RV is tied to the myriad of customizable options and add-ons. So, while the model, floorplan, and engine details are covered by the RVs VIN, not everything can be ascertained.
How To Decode A VIN
The RV VIN is very similar to a typical towable trailer VIN. The last six digits represent the serial number of that particular RV and the tenth character of the VIN indicates the model year.
A sample VIN for a towable trailer would look like this: 1UJBJ02M761JL0326
The first three characters identify the manufacturer;
(1UJ) In this example the manufacturer of the towable trailer is Jayco.
(B) Defines the trailer type; in this case B is the designated letter for travel trailers.
(J) Identifies the make as Jayco.
(0) Zero designates the body type as recreational vehicle.
(2) Two indicates the number of axles on the vehicle.
(M) Is the length code. In this case, M is the designated letter for a unit that is 26-28 feet.
(7) Is the check digit for the VIN computation (something too complicated to include here).
(6) Is the model year code and can be either alpha or numeric (see the chart below).
(1) Identifies the location where the RV was manufactured. In this case it is Middlebury, Indiana.
(JL) Identifies the model code.
(0326) Is the production sequential number also called the serial number.
The 17-digit VIN is also broken down into four sections. Using the same example, the first section (1UJ) is the WMI or World Manufacturing Identifier.
The second section (BJ02M) denotes the vehicle type, make, body type, and number of axles. These 5 alpha numeric characters can have different meanings for each manufacturer.
The third section (7) is the check digit. There is a calculation that is used to determine this digit, but it is too detailed to be included in this article.
The fourth section (61JL0326) is the model year and serial number. The tenth digit of the VIN (6) will always be the designated model year (see chart below).
We can now decipher, 1UJBJ02M761JL0326, as a specific VIN for a 2006 Jayco Model 27BH Jay Flight Travel Trailer.
Take a look at the designated model year, especially for the letter A-H.
Model Year Character Codes:
A: 1980 or 2010
B: 1981 or 2011
C: 1982 or 2012
D: 1983 or 2013
E: 1984 or 2014
F: 1985 or 2015
G: 1986 or 2016
H: 1987 or 2017
As you can see, there is some overlap for the alpha model year identifiers A-H. However, because there is a consistent 30 year differentiation, you should not have a problem identifying the correct model year for your RV or Trailer. There are a number of internet resources that have VIN lookups or decoders. The most accurate ones require a small fee to lookup the VIN, but they also include a very detailed breakdown of the specific VIN you are researching.
For RVs that are not towable (i.e. units that are equipped with an engine) the VIN format is slightly different. These RVs will also have two VINs: one for the chassis, and one for the finished unit.
How Are Motorized RV VINs Broken Down?
The first three characters, or first section, of the VIN identify the manufacturer.
The next five characters, or second section, will vary by manufacturer but generally will identify the brand, engine size, and type.
The third section is the check code.
The fourth section will have the model year and serial number of the RV, and possibly identify the assembly plant where the RV was built. It's important to note that the tenth digit of the VIN will always designate the model year, just like in the example.
If you follow these guidelines, you can quickly verify the model year of your trailer or RV. The most important digit is that tenth digit which is always the model year. That really is all you need to know as you browse for the RV or towable trailer to help you "go yachting" on land.