Here’s what the letters and numbers in your Tundra’s VIN number represent:

FIRST THREE CHARACTERS:

The first three characters of your Tundra’s VIN number indicate where your truck was built.

5TF - Truck was manufactured at TMMTX
5TB - Truck was manufactured at TMMI

FOURTH CHARACTER:

The fourth character of your Tundra’s VIN indicates the body type.

J - Reg. Cab 2WD
K - Reg. Cab 4WD
L - Reg. Cab 2WD Long Bed
M - Reg. Cab 4WD Long Bed

R - Double Cab 2WD
S - Double Cab 2WD Long Bed
B - Double Cab 4WD
C - Double Cab 4WD Long Bed

E - CrewMax 2WD
D - CrewMax 4WD

FIFTH CHARACTER:

The fifth character of your Tundra’s VIN indicates the engine.

U = 4.0L V6
T = 4.7L V8
V = 5.7L V8

SIXTH, SEVENTH, & EIGHTH CHARACTERS:

The 6th, 7th, and 8th characters in the VIN indicate the trim level of the truck.

521 = Base
541 = SR5
581 = LTD

NINTH CHARACTER:

The 9th character in the VIN is used as a check digit.

TENTH CHARACTER:

The 10th character in your truck’s VIN is the model year. It’s either a number or letter, depending upon the decade. For 2007, it’s the number “7″. However, in 1997, it was a “V”.

ELEVENTH CHARACTER:

The 11th character indicates the final assembly point.

S - Indiana
X - Texas

LAST SIX CHARACTERS:

The last six numbers of the VIN are used by Toyota to uniquely identify your vehicle, sort of like a serial number. However, these numbers do not appear to be sequential or numerically significant. Toyota seems to have a unique system for numbering cars - they don’t seem to be marking them 000001, 000002, 000003, etc.

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