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How old is my Speed Queen dishwasher?

Serial number age decoder for Speed Queen dishwashers: 1 format era, the decode rule in plain English, transcribed tables, and the official lookup.

Serial number decoder for Speed Queen dishwasher

Serial no.

Type the serial from the data plate, not the model number. Nothing is sent anywhere; the tables are in this page.

Format example: 9206152586

Speed Queen dishwasher serial numbers in the before 2002 format encode the year as digits 1-2 (YY) and the week as digits 3-4 (source: building-center.org).
Example: serial 9206152586 decodes to week 6 of 1992.
Speed Queen's official lookup at speedqueen.com returns warranty / registration lookup.

Format eras

before 2002 VERIFIED
##########digits 1-2 (YY)

How to read the serial

before 2002 formatVERIFIED

Shape ########## · example 9206152586 · confidence medium

Year: digits 1-2 (YY)
Week or month: week = digits 3-4

Example: serial 9206152586 decodes to week 6 of 1992.

Trap: Raytheon-era Amana Refrigeration format (Amana was Raytheon 1965-1997, Goodman 1997-2001, Maytag 2002-2006, Whirlpool 2006+). 10 all-numeric digits: collides with the Goodman/Amana HVAC serial (YYMM + 6) and with Alliance's YYMM + 6 laundry serial; only the 3rd-4th digits being >12 proves the week reading. Century by era (92 = 1992). Building-center also lists this style ('02 12 043964') for Speed Queen, Admiral and Magic Chef under the label 'Older Raytheon Appliances' - Speed Queen was indeed Raytheon (to 1998) but Admiral/Magic Chef were Maytag brands, so that attribution is a building-center copy-paste; treat the YYWW style as Amana/Speed Queen only. Example 9206152586 is the Amana TZ19QL plate photographed on building-center (1992 wk 6).

Listed under Amana in the source; Speed Queen is named in that format's family and the corporate link is an estimate, not a checked fact.

Where the data plate is on a dishwasher

Open the door: the label is on the inner door edge or the side of the tub frame.

General guidance, not brand-specific: the owner's manual or the installer can point to the exact spot. See the data plate guide.

For scale only: the InterNACHI Standard Estimated Life Expectancy Chart for Homes lists Dishwasher at 9 years of expected service (nachi.org). That chart is a guideline, not a prediction for your unit.

Official lookup: the authority

Open the official Speed Queen lookup takes serial number; returns warranty / registration lookup; URL verified live

This site is a reference built from published tables. The manufacturer's own lookup wins whenever the two disagree.

What we could not confirm

Speed Queen is treated as sharing Amana's format because the source lists it in that family; the corporate relationship itself is an estimate.
Official Alliance CPSC filing: YYMM + 6 digits for Ripon WI / Thailand builds; European builds end in Maytag-style year+month letters (D2288EN). Pre-1998 Raytheon-era = Amana YYWW style. Building-center's page wrongly ties Speed Queen to Whirlpool's 2006 Maytag purchase. speedqueen.com/warranty-check/ curl 200 (form).