My mother got an Electrolux vacuum as a wedding shower gift. She had to stop using it around 2005 not because it stopped working but because they discontinued making the bags for it. At that point it had been running for over 40 years.
Have you ever had an appliance run for an amazingly long time?
Not 40 years (yet) but our laundry center is at least 20 years old and still working great. I wish it would die so I could get a front-loader.
In appliance years, it’s actually older than 20, because it started life as a test unit. Test units are operated continuously, 8 hours a day, 5 days a week, sometimes more.
My washer and dryer were purchased in 1972, my kirby Vacuume about the same time. I have repaired them several times. The fridge at my old job was a gas fridge and is still working. I imagine early fifties. My micro wave just now burned up and is about 3yrs old. My drill press is early fifties but doesn’t get daily use.
My dad bought me a Hoover Decade 80 vacuum cleaner and a Goldstar microwave oven when I got my first apartment in 1987. The microwave oven lasted 18 years. The Hoover still works.
I know our gas dryer is 27 years old. Replaced a few burner parts over the years including the coils for the 2nd time earlier in the year.
The upright freezer is older but not so sure as to age. Something like 30-32 years. All original parts.
If we are talking about “small” appliances, do radios and such count? I have two AM/SW radios my father built in 1945 for a class he was taking in the USAAF. Still work, but with a lot of fixes over the years. (Caps, resistors, tubes and alignment.)
I own and use my grandmother’s handmixer. From the packaging (I have the box as well) it looks like it was made in the late 50s-mid 60s. 50 years of regular (though not daily) use without any need for repair, not too shabby.
My alarm clock has been running more or less constantly since 1978.
I have an alarmclock/radio that’s been around for decades…3 at least.
24-year-old television (13-inch Sony Trinitron) that I still use in my bedroom
20-year-old microwave oven (Panasonic)
I have an Amana Radarange microwave that was made in 1982 (three years older than I am) and still works despite daily use, although it overheats if you use it for a long time (half hour or so, it still runs until it times out, but the buttons don’t work until it cools down, not a problem most of the time).
Also, while not that old (relatively speaking), I am still using the same monitor (Sylvania 19 inch flat-screen CRT monitor) for the past 10 years, over the life of three computers, including the current one, I’m guessing that it has at least 20,000 hours of runtime (while not noticeable in normal use, if I move a blank white window over the top or bottom of the screen, where the title/taskbars are, I can see a change in the color (more yellow) due to uneven aging of the screen phosphors).
Oh yeah, and a digital alarm clock that I’ve had for at least 15 years that came from a garage sale, it even still has the price marked on its case - 99 cents (no date on it, but probably made in the 80s, and a testament to how long LEDs can last; I’d expect to see noticeable degradation by now with the oft-quoted 50,000 hour lifetimes but the digits (10s of hours is on much less often) are all the same brightness).
I bought my red Krups coffee grinder in, I think, 1985. Almost daily use since then, and it’s still working perfectly.
I had a crock pot from the late 70’s - a Harvest gold color Sears knockoff, a hand-me-down from my uncle in 1982. Just this year the heating element stopped getting hot enough and I had to replace it.
And I have my mom’s hot roller set from around 1983. I don’t use it very often, but it still works great.
I have a '50s model Sunbeam self-lowering toaster that still works fine, but I don’t know its exact age. I also have a hot air corn popper I got as a gift in 1984.
Many.
The oldest veteran appliance in my mother’s house is our old refrigerator made by some surely defunct company named “Crown”. It and my brother are the same age: 44 years old. The compressor was replaced once, I believe.
We were given a Quasar microwave oven by my uncle that was new in 1987. Still works like a charm. Silver anniversary for that mutha.
Our old oven (GE) was my age and still worked fine before they got rid of it. I turned 37 this year.
We have an upright freezer that my inlaws bought over 30 years ago. I think it’s around 40 years old, but I’m not sure. I keep thinking of replacing it, but it works really well and when we measured its energy usage, it really wasn’t bad.
We were given two blenders when we got married 31 1/2 years ago. We opened one and saved the other because we knew that they tend to burn out. The first one is still working, and the second one is still sitting on a shelf, waiting to be used. We don’t use a blender often enough, obviously.
I still use a clock radio my mom and dad gave me as congratulations for appearing in a play when I was in grade 7, back in 1992-93.
The electric hand mixer my parents got as a wedding gift in 1953 still works just fine, and it emits that wonderful ozone smell when used. Honestly, it doesn’t get a lot of use though.
I have several clocks from the early 80s that still work. A beautiful 8-day starburst clock from the late 50s or early 60s still keeps time just fine. It has been in continuous use since about 2000 when we bought it at a retro/antique store. My Sansui G5700 stereo tuner/amp from 1979 is still going strong.
Just remembered: I have my parents’ ice cream maker (the bucket-ice-salt type with the motor on top) that dates back to at least the early 70s and it still works, though the motor is very loud now. It’s a lovely pea green color!
My mother gave me her 1952 electric stand mixer (Sunbeam, I think) and it still runs like new. I even have a spare of the same mixer that my dad found at a thrift store in case I need parts some day.
My 50 gal electric water heater was made ca. 1965. Works fine, even though it may cost more to run than newer units.
I have a crockpot left to me by my grandmother, in use at least once a month. 60 years young.
A BSR CD player, 1989, with yearly maintenance, works perfectly.
A standard AT&T telephone from 1960; the touch-tone buttons aren’t reliable, but it receives calls fine, and the fidelity is way better than newer units, not to mention cellphones, which are abominable.
Laundry – Kenmore washer & electric dryer, new in 1982, never had maintenance, ever. Works fine, although the dryer needs a new drive belt (it squeaks).
Deep well water pump ca. 1985, never had maintenance, works perfectly.
In my previous life as a house-cleaner, one of my clients was a little old lady who was extremely wealthy but frugal as all buggery. Oh, and a bit OCD as well.
One of my tasks was to clean the lint filter on her clothes-dryer. Now this wasn’t one of your new-fangled dryers: it needed partial dismantling w/screwdrivers etc to get to the filter which invariably had maybe a tsp worth of lint. I also had to clean behind it, and being heavy as all hell made ‘laundry cleaning day’ one I never looked forward to.
I hated that machine with a passion! 
I often asked her why she didn’t upgrade to a more modern unit, but her comment, “Why would I bother, it’s still going strong”, made some sense I guess.
She had purchased the dryer on the birth of her first daughter in 1945 or thereabouts, and when I finally stopped working for her in about 1998, the danged machine was still going strong.