Vehicle Assembly Plant Codes
Position 11 of a VIN is the assembly plant code — a single letter assigned by the manufacturer to identify which factory built the vehicle. Unlike WMI codes (which are standardized by NHTSA), plant codes are manufacturer-specific and can reuse the same letter for different plants across different brands.
Ford Assembly Plants
A
Atlanta Assembly
Atlanta, GA, United States
D
Chicago Assembly
Chicago, IL, United States
F
Dearborn Truck Plant
Dearborn, MI, United States
G
Flatrock Assembly
Flat Rock, MI, United States
Z
Hermosillo Assembly
Hermosillo, Mexico
K
Kansas City Assembly
Claycomo, MO, United States
E
Kenucky Truck Plant
Louisville, KY, United States
U
Louisville Assembly
Louisville, KY, United States
L
Michigan Assembly Plant
Wayne, MI, United States
N
Norfolk Assembly
Norfolk, VA, United States
B
Oakville Assembly
Oakville, ON, Canada
S
St. Louis Assembly
Hazelwood, MO, United States
X
St. Thomas Assembly
St. Thomas, ON, Canada
T
Twin Cities Assembly
Saint Paul, MN, United States
R
Twin Cities Assembly
Saint Paul, MN, United States
W
Wayne Assembly
Wayne, MI, United States
Honda Assembly Plants
Toyota Assembly Plants
V
Fujimatsu Plant
Kariya, Japan
H
Hamura Plant
Hamura, Japan
G
Kyushu Plant
Miyata, Japan
E
Miyata Plant (TMMK)
Georgetown, KY, United States
F
Motomachi Forklift Plant
Toyota, Japan
A
Motomachi Plant
Toyota, Japan
R
TMMAL - Huntsville
Huntsville, AL, United States
K
TMMC - Cambridge
Cambridge, ON, Canada
J
TMMC - Cambridge
Cambridge, ON, Canada
W
TMMK - Georgetown
Georgetown, KY, United States
N
TMMMS - Blue Springs
Blue Springs, MS, United States
L
TMMTX - San Antonio
San Antonio, TX, United States
T
TMMWV - Buffalo
Buffalo, WV, United States
U
Tahara Plant
Tahara, Japan
B
Takaoka Plant
Toyota, Japan
C
Tsutsumi Plant
Toyota, Japan
X
Tsutsumicho Plant
Toyota, Japan
Z
Yoshiwara Plant
Fuji, Japan
How Assembly Plant Codes Work
Plant codes are assigned internally by each manufacturer — there is no single universal standard. The letter A might mean a completely different plant for Toyota vs. Ford vs. Honda. That's why you always need to know the manufacturer (from the WMI, positions 1–3) before interpreting the plant code (position 11).