© 2006-2013, Dr. Ray Franco, PhD., PE    r.a.franco@ieee.org


Whirlpool Date Codes

The breakdown for Whirlpool Serial Numbers is:

1st Alpha Character = Manufacturing Division Code.
2nd Alpha Character = Year Manufactured (Prior to 1990 this was a numeric).
1st and 2nd Digit = Week of Year Manufactured.
3rd though 7th Digit = Order of Manufacturing that Week.

For products "not built by Whirlpool", an additional alpha is used after the first alpha to indicate the source. All other alpha and numeric designations remain the same.

Alpha Year Codes After 1989
Code Year Code Year
X 1990 K 2000
A 1991 L 2001
B 1992 M 2002
C 1993 P 2003
D 1993 R 2004
E 1995 S 2005
F 1996 T 2006
G 1997    
H 1998    
J 1999    
Numeric Codes Prior to 1990
Code Year Code Year
0 1970 0 1980
1 1971 1 1981
2 1972 2 1982
3 1973 3 1983
4 1974 4 1984
5 1975 5 1985
6 1976 6 1986
7 1977 7 1987
8 1978 8 1988
9 1979 9 1989

For example, the serial number of my Kenmore dryer, MB1402320, indicates that it was built in the 14th week of 1992.


Whirlpool Model Number Codes

An alpha code in the model number indicates the year the model was introduced. Before 1981, the second digit of the model number contained the code. After 1981, the eight digit contains the code.

Before 1981
Code in 2nd Position
Code Year
J 1962
K 1963
L 1964
M 1965
P 1966
R 1967
S 1968
T 1969
V 1970
W 1971
X 1972
Y 1973
A 1974
A 1975
D-E 1976-77
F-G 1978-79
H 1980-81
After 19981
Code in 8th Position
J 1981
K 1982
L 1983
M 1984
P 1985
R 1986
S 1987
T 1988
V 1989
W 1990
X 1991
Y 1992
A 1993
B 1994
D 1995
E 1996
F 1997
G 1998
H 1999
J 2000
K 2001
L 2002
M 2003
P 2004
R 2005

For example, the "M" in LA7680XMW0 indicates this model was introduced in 1984.


Pic of Kenmore Washer Tag

My Kenmore Washing Machine Model No.: 110.91278100,
SN: CB2501800, Was Manufactured by Whirlpool- 25th week of 1992 .

Pic of Kenmore Dryer Tag

My Kemore Refrigerator Model No. 106.9712611,
SN: EB1719162 Was Manufactured by Whirlpool - 17th week of 1992.

Pic of Roper Dryer Tag

This Roper Dryer, Model No. RED4100SQ0,  SN: MT2513399
Was Manufactured by Whirlpool - 25th week of 2006.