Rivets. Briggs is using serial numbers and are required when filing warranty claims. It is normally just a sticker on the engine some place and not part of the normal model type code. The first part of the serial number is also the code or 21102389 Or to the OP October 23, 2021. The engine serial number can also be used to look up engines on The Power Portal.
Ahhh. I get it now. The first 6 digits of the serial number on these new motors is the manufacturing date. Quite obviously none of the websites I visited have the latest, up to date info on Briggs model numbers, serial numbers, and DOM. Maybe that's why none of them made sense when I was trying to figure it out. They all were providing info on how to determine DOM from the old model number system and not the newest numerical system.
Many thanks there, ILENGINE. I do appreciate that bit of knowledge. Are you aware of any website that has ALL the different ways of determining DOM? It would sure be nice if that info was all available on a single website.
A side note. I have also been completely unable to find any website that has correct DOM data for MTD products. I was unable to determine DOM from any website using the model number and serial number. I'm guessing that updated info hasn't made it onto any of the websites claiming to tell a person what year a product was manufactured through the model or serial numbers.
And to Rivets. No need for an apology. No harm done. Things change awfully fast these days. I spent 30 plus years in the computing industry. Taking even 6 months off in that field will put a fella WAY behind the ole 8 ball.
Now, the good news. I bought this Remington mower off a young couple in Southwestern Indiana. When I saw the photos online and saw the asking price, I immediately thought that there was something I wasn't seeing. He told me via online messaging that he bought the mower this last spring and now they had no need for it, for whatever reason. The asking price was $25. No kidding. I had to drive a short distance to where he was located. I really thought I was going to get there and find a mower with a bent shaft or maybe blowing smoke. When I got there all I did was push the primer bulb three times and gave it a good pull on the rope. She fired right up and purred like a kitten. I kept thinking there was something I was missing. I've started it here in the garage a couple of times already and each time it fired right up and settled into a nice, even roar. I've checked online and this mower is selling for around $250 on several sites. I found one site that had it listed for $199 and that was the lowest I found. That site also said they were currently out of stock, too. I have to wonder why a young couple would lay out $250 for a mower, use it a single season, then sell it for $25. I sure couldn't have done that when I was under age 20. LOL!