Mustang Vehicle Identification Numbers (VIN) offer several pieces of information about your Classic Mustang.  Decoding this information can tell you the year your vehicle was assembled, the assembly plant, the body style, the engine cubic inch displacement (CID), and consecutive unit number.  This guide is written to take the mystery out of 1964 1/2, 1965 and 1966 Classic Ford Mustang VIN numbers.  Please remember to indicate below if this guide is helpful to you.

HOW TO DECODE YOUR VIN NUMBER ON YOUR 1964 1/2, 1965 OR 1966 FORD MUSTANG

Each letter or number in a Vehicle Identification Number, or VIN, stands for something.  Some of the VIN codes were only used on the 1964 1/2 Mustang.  If you are curious about the differences between 1964 1/2 and 1965 Mustangs, please see our Differences Between 1964 1/2 and 1965 Mustangs Guide.

For the purpose of explaining each individual letter and number, we have created a sample VIN number.  Then we have broken this VIN number down, explaining what each number and letter represent.

OUR SAMPLE VIN NUMBER:  5R09A201258

5 - Designates the year the vehicle was assembled. 

All 1964 and 1965 Mustangs begin with a "5", indicating 1965

Other years are as follows:

6 = 1966; 7 = 1967; 8 = 1968; 9 = 1969; 0 = 1970

R - Designates one of three assembly plants (there are F, R and T)

F = Dearborn, Michigan; R = San Jose, California; T = Metuchen, New Jersey

09 - Designates one of three body styles (there are 07, 08 and 09)

07 = Coupe; 08 = Convertible; 09 = Fastback

A - Designates one of seven engines used

A = 289 4 V premium fuel
C = 289 2 V
K = 289 4 V high performance
T = 200 1 V 6 cylinder
U = 170 1V 6 cylinder (1964 1/2 Mustang only)
D = 289 4 V (1964 1/2 Mustang only)
F = 260 2 V (1964 1/2 Mustang only)

201258 - Designates the consecutive unit number

DECIPHERING THE CODE:

In summary, our VIN Number that we used as an example, tells us the following:

It is a 1965 Mustang that was manufactured in the San Jose, California assembly plant.  It is a Fastback with an A Code 289 4 V premium fuel engine and was the 201,258 car assembled.

Mystery solved!  Have fun decoding your Classic Mustang VIN number.  If you are curious about decoding other Classic Mustangs, check out our Decoding 1967 and 1968 VIN Number Guide and our Decoding 1969 and 1970 VIN Number Guide.


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