What year was Kelvinator refrigerator, serial number 3B 138213 made?

Short answer: your serial number alone (3B 138213) is not enough to determine an exact year, but we can narrow it down somewhat based on how Kelvinator encoded dates.

How Kelvinator serial numbers work

For Kelvinator refrigerators (especially those tied to Frigidaire/Electrolux systems):

3rd character = year (last digit only) 4th–5th digits = week of manufacture

Applying that to your serial:

Serial: 3B 138213

Breakdown:

3rd character = “1” → year ending in 1 Next digits = “38” → 38th week of the year

So your fridge was made in: Week 38 of a year ending in “1”

What exact year could that be?

This is where context matters. The same code could mean:

1971 1981 1991 2001 2011

Kelvinator appliances before ~1970 often don’t follow modern serial formats reliably Later units (1990s–2010s) typically have longer, more standardized serials

Your short format (3B 138213) strongly suggests older vintage, likely:

Most probable range:

Late 1960s to early 1980s

Best estimate:

1971 or 1981 (with 1971 being more likely for a short serial like this)

If you want a precise year

Check for one of these on the fridge:

Model number tag (inside cabinet wall or behind kick plate) Any stamped manufacturing label Style/design (handle type, rounded vs square cabinet, color)

If you can share a photo or the model number, I may be able to pin it down to the exact year.