The golf car vehicle identification number is located on a metal tag above the left rear tire on the rear frame cross brace on most older models. For others you will find it behind the batteries in the battery bank cavity. 

From 1963 through 1982 Harley Davidson positioned their serial number on a metal plate located above the driver's side rear tire on the rear frame cross brace. Some electric models will have the plate located behind the batteries.

If your cart was made in the '60s, the first two numbers designate the year and the next letter(s) designate the model as in this example:

64DC800025

This VIN would indicate that the cart was made in '64 and is a model "DC"

If your cart was made in the '70s or '80s, it will follow this format:

3B12234H4

This VIN indicates it was made by Harley Davidson in '74(H4) and is a model "D"(3B)

MANUFACTURE & YEAR

The letter H (made in the '70s) or J (made in the '80s) indicates the cart was manufactured by Harley Davidson

The letter C (made in the '80s) or D (made in the '90s) designates Columbia as the manufacture.

The last number indicates the year of the decade.

H7='77
J1='81
C4='84 

GAS MODELS '63 to '81
3B=D
5B=DC
7C=D4
3K=CLASSIC

'82 to '83
3B=D3
5K=DX4

'84 to '85
3B=G3
5K=G4
7K=U4
 

ELECTRIC CARTS '63 to '76
4B=DE
6B=DEC

'77 to '83
4B=DE3
6K=DEX4

'76 to '78
8D=DE40

'79 to '82
8D=MGIV