In our global society, who knows what you will get or where it comes from.
Brand names are commonly sold and traded, sometimes it changes the mfg, sometimes it doesn't.
Manufacturing processes are constantly changing, sometimes for the better, sometimes for the worse. One thing for sure though, profit is the determining factor.
It's surprising anyone even makes some of the old, near obsolete plugs. Think of the space a line that specializes in making that size plug takes up in a factory. How often is it run? No way it produces any profit for the company. Think about the thousands of spark plug designs out there over the last 100+ years! Not just automotive, but industrial, recreational, lawn equipment, aircraft, military, boiler igniters, flame sensors...
I suspect the Champions are still produced on original equipment, thus the unchanging appearance. But the Autolites, they have either upgraded to new equipment, or have outsourced them to another company.
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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