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I'm going to change my plugs with new Motorcraft plugs. I don't have time to remove a plug to actually get a number (time does not permit). Info found at motorcraft website, local Ford dealer, and auto parts stores leaves me confused. Let me explain...
1. Motorcraft website - AGSF32FM - probably high priced
2. Ford dealer - AGMA32F - $9.51 each + tax
3. auto parts - AGSF32FM - $3.99 each
Choices 1. and 3. are the same number. Choice .3 wins by price. How do I read a plug number? Between 2. and .3 the number is different.
I like choice number 3! Does this difference in plug numbers EVEN MATTER?