KitchenAid Serial Number Lookup: Find the Year and Week
Whirlpool has owned KitchenAid since 1986, and modern KitchenAid major appliances can use Whirlpool’s nine-character serial number structure. Position 1 is the manufacturing-site code, position 2 is the year code, positions 3–4 give the production week, and positions 5–9 form the unit sequence.
For example, split serial number M92510000 as M | 9 | 25 | 10000. M identifies the manufacturing site, 9 is the year code, and 25 is the production week. The numeric year code repeats every ten years, so we advise you to enter the model number as well. For model KCES550HBL, the current catalog verifies the cooktop, and Appliage estimates production week 25 of 2019. The shared Whirlpool table uses letters for 1991 through 2009, so numeric readings for 1999 and 2009 are not included.
If dated records for the model identify one decade, Appliage returns that single year instead. If position 2 contains a letter that is not in the year table, Appliage cannot calculate a manufacture year.
Appliage decodes two KitchenAid year systems. Serial numbers from 2010 to today use the numeric year code described above. Serial numbers from 1991 through 2009 use a letter year code, A for 1991 through Y for 2009. Both systems are covered under KitchenAid Age Rules below, and the letter years have their own table and section.
An X in the year position can point to 1990 or 2020. Add the KitchenAid model number and Appliage may be able to narrow the result to one year.
Position 2 tells the two systems apart: a digit is the repeating numeric code, and a letter comes from a letter table.
We advise you to enter the model number as well because dated records for the model can help Appliage choose the correct decade. If only one year fits, the result shows the production week and an estimated age. Otherwise, Appliage shows every possible year or explains why the year code cannot be decoded.
KitchenAid Age Rules
- 1 manufacturing site
- 2 year character
- 3–4 production week
- 5–9 unit sequence
Position 1 is the manufacturing-site code. KitchenAid assigns this character to the factory that built the appliance. It tells you where the unit was made, not when it was made. Positions 5–9 form the unit sequence. They identify the individual machine but do not influence its manufacture date.
This format has no month code. Positions 3–4 contain the production week. Appliage checks that the two digits form a valid week number.
| Code | Year meaning |
|---|---|
| 0 | year ending in 0 |
| 1 | year ending in 1 |
| 2 | year ending in 2 |
| 3 | year ending in 3 |
| 4 | year ending in 4 |
| 5 | year ending in 5 |
| 6 | year ending in 6 |
| 7 | year ending in 7 |
| 8 | year ending in 8 |
| 9 | year ending in 9 |
The year character provides only the final digit of a possible manufacture year, so every numeric code repeats after ten years. Appliage excludes future years and the 1991–2009 span covered by Whirlpool’s letter table. Dated model records can narrow the open numeric cycles.
Letter Year Codes (1991–2009)
On earlier KitchenAid serial numbers, position 2 holds a letter instead of a digit. The other positions do not change: position 1 is still the manufacturing site, positions 3–4 are still the production week, and positions 5–9 are still the unit sequence. The published letter years run from A for 1991 through Y for 2009 and skip I, N, O, Q, V, and X.
| Code | Year |
|---|---|
| A | 1991 |
| B | 1992 |
| C | 1993 |
| D | 1994 |
| E | 1995 |
| F | 1996 |
| G | 1997 |
| H | 1998 |
| J | 1999 |
| K | 2000 |
| L | 2001 |
| M | 2002 |
| P | 2003 |
| R | 2004 |
| S | 2005 |
| T | 2006 |
| U | 2007 |
| W | 2008 |
| Y | 2009 |
A federal recall from August 2004 lists KitchenAid cooking models with serial ranges XR15 through XR25, which puts R at 2004 on that same Oxford plant code. Most letters in the older table name one year. At F, C, and M, though, E or F gives 1995 or 1996 in that table and has no published meaning in Whirlpool’s newer letter period. Appliage leaves the older date as a candidate rather than calling it settled, and it does not guess 2025 or 2026.
In ML2536812, M is the Marion manufacturing site, L is 2001, and 25 is the production week. So ML2536812 is week 25 of 2001.
KitchenAid Serial Numbers Appliage Cannot Find the Age
If position 2 holds I, N, O, Q, V, or X, Appliage returns no year, because no official document has dated those letters. It does not borrow a year meaning from an unrelated serial number format.
Stand mixers use separate serial number systems, including Hobart-era formats from before Whirlpool owned the brand. This guide applies to KitchenAid major appliances; contact KitchenAid or a mixer specialist for a stand mixer.
KitchenAid inside the Whirlpool group
KitchenAid has been a Whirlpool serial number lookup brand since 1986, and its documented serial layout uses the same manufacturing-site, year, and production-week positions as Whirlpool appliances.
The change in ownership did not put a new serial format on every product at once. If a KitchenAid serial number from the transition years does not match the nine character layout, Appliage cannot use the tables on this page to calculate its age.
Sources
- KitchenAid service manual (W10573282). The serial diagram labels the factory, year and week positions in the nine character number.
- CPSC: Whirlpool and KitchenAid cooking product recall (04-577). Whirlpool made the affected appliances. The notice includes their serial ranges.
- KitchenAid service manual (4317323 / KAC-28). In example XK0301006, X identifies the Oxford factory. The year codes include K for 2000, L for 2001 and M for 2002.
- KitchenAid refrigerator service manual (4317344 / KAR-15). For this refrigerator format, Q identifies LaVergne, Tennessee, and P means 2003.
- Whirlpool history: the KitchenAid purchase (1986)
- Whirlpool laundry service manual (W11197006). The serial diagram labels the factory, year and week positions.
For other brands, see our appliance serial number lookup.