Yes, I understand, George, but you are in the USA and I am in a Third World Village in rural Mexico. Which not only means in a Third World village, but not within a normal supply chain such as you have in the US.
When I first came here, I wiped out a tire, really bad. Not at all serviceable or repairable.
I went to a local tire guy who contacted his supplier in the state capitol when he went there on his weekly pickup trip for tires. The supplier told him he would order it. Every week he would check, and the tire never came.
I parked my car for an entire month waiting for that tire to come, and finally told the local tire guy I was convinced that tire was never even ordered. He scrounged up something of a different size that would fit on my spare wheel so I would have a usable spare.
My doctor friend later invited me to spend the weekend with him at his apartment in the big city. We drove around and found one, a cheap Asian tire of the correct size. When I bought that spare wheel last year in McAllen, that was the tire I had put on it for second spare.
That is why I have several spares extra for my wheels.
They may in fact be able to get it via their supply chain. But, will they even try is the question. And, if they try, will their supplier make an effort to bring it.
Remember, they are determined you must use 20W-50 oil or your motor will blow up.
This issue is why Wal-mart and Sam’s Club are so popular in Mexico. Most stores only stock the same narrow range of goods which seem to sell the most. It does no good to go elsewhere. Wal-mart when one is available stocks a much wider range of items, though even they are limited in scope.
I would not be surprised at all if Wal-mart in Tehuacan has the 9003. But, AutoZone is across the street.
Now, for medicines my pharmacist friend can order almost anything in stock and have it within the week from Mexico City on an established supply chain.
The parts places stock a very limited range of the most popular parts. Lots of 20W-50 oil, for example. And, thus it is likely their supply chain is mostly limited to those common items.
The USA is known for many things. And, one of them is the incredible market place for almost anything that exists. With the Internet it is even more complex.
I went Saturday to a local school closing, a major ceremony including graduation of the Seniors, and three hours of music and drama. The young woman who invited me (one of my long term English students) plays the saxophone in the school marching band. Out of curiosity I googled for ‘saxophone Amazon’, and they had a wide range of saxophones of various types from $275 to $1300, available fast in the USA. Unbelievable! Here you would probably have to go into Mexico City for more than one choice on saxophones.