Serial Number Decoder (For 1947 - 1955 1st Series Chevy Trucks)


Serial Number Location

The serial number is located on the left (driver's side) front body hinge pillar, except on models with a cowl less windshield, where the serial plate is located on the left hand cowl side inner panel except forward control chassis serial number plates installed by the body builder.

Serial Number Composition

The serial numbers for 1947 through 1955 US made Chevrolet Advance Design trucks are 8 to 12 digits long*. They are comprised of two sections. The first section ends with the last alpha character. It is arranged in one of two distinct formats, depending on the year the truck was built, as explained below. The second section, all numeric, is the plant production number, with the first truck built at a given plant receiving the number 001001.

Serial Number Order
1953 - 1955
1947 - 1952
First Digit
Series
Assembly Plant*
Second Digit
Year (Decade, always 5)
Year (E, F, G, H, J, K) 
Third Digit
Year (3, 4 or 5)
Series*
Fourth Digit
Assembly Plant
Month (A - L for Jan - Dec)
Assembly Plant
1953 - 1955
1947 - 1952
Atlanta, GA
A
8
Baltimore, MD
B
14
Flint, MI
F
1
Janesville, WI
J
21
Kansas City, MO
K
5
Los Angeles, CA
L
20 
Norwood, OH
N
9
Oakland, CA
O
6
St. Louis, MO
S
3
Tarrytown, NY
T
2
Year
1953 - 1955
1947 - 1952
1947
-
E
1948
-
F
1949
-
G
1950
-
H
1951
-
J
1952
-
K
1953
53
-
1954
54
-
1955
55
-
Series 
1953 - 1955
1947 - 1952
1508
D
J
3100
H
P
3600
J
R
3800
L
S
4100
N
J
4400
P
K
6100, 6100S*
V, SV
V, VS
6400, 6400S*
W, SW
W, WS
6500, 6500S*
X, SX
Y, YS
Month
1953 - 1955 
1947 - 1952
January
N/A
A
February
N/A
B
March
N/A
C
April
N/A
D
May
N/A
E
June
N/A
F
July
N/A
G
August
N/A
H
September
N/A
I
October
N/A
J
November
N/A
K
December
N/A
L

Thanks to Don Moen for this information.