6
39
Identification
6-6
Alcoa wheel identification
Since 1977, all Alcoa aluminum disc wheels have been identified with a stamp that shows the wheel
load rating, maximum inflation pressure, date of manufacture, part number, wheel description and
DOT marking designation.
Prior to June 1996, all Alcoa heavy duty truck wheels had the Alcoa identification
symbol on the outside of the disc near the hand hole in line with the valve location. This
marking was phased out on heavy duty truck wheels manufactured after June 1996.
All Dura-Bright
®
surface treated wheels are designated by the letters “DB” following the part number
such as 883640DB.
Note: Dura-Bright
®
wheels produced after November 2002 have Alcoa wheel part numbers ending
with “DB” (earlier wheels have part numbers ending in a 4 or 7) with bead seat diameters measured in
0.5-inch increments. Not all Alcoa wheels are available with the Dura-Bright
®
surface treatment.
All Dura-Flange
®
wheels are designated by the letters “DF” following the part number such as
883640DF.
All Dura-Bright
®
/ Dura-Flange
®
wheels are designated by the letters "DD" following the part number
such as 883640DD.
If you cannot identify the size or load rating of the wheel it should not be used.
As of January 2009 Alcoa introduced a new logo label.
Date of Manufacture
Month/Day/Year
(prior to 2000, some wheels
may have only Month/Year)
Wheel Description
ALCOA ® FORGED
MADE IN U.S.A.
Wheel Load Rating
(Pounds)
FMVSS 120
Designation
Maximum
Inflation Pressure
PART NO 883640
MAX LOAD 7300
LB.
MAX PSI 120
082205
T—DOT
22.5X8.25 15° DC