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By Lanny White - 5 Years Ago
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I have among my hundreds of '54 Merc spare parts a NOS blower/fan switch, part # B3AZ-18578-A. The part number indicating fitment for a 1954 is FDC 18578 B and I am wondering if any of you Y-Blockers can decode the prefix (B3AZ) as to year specific for this switch. It is possible that it fits '49 - '53 which obviously would not be in the Y-Block era, but some of us straddle the line with the flatties.
Any help out there?
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By Hoosier Hurricane - 5 Years Ago
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The B3AZ prefix indicates '53 Ford passenger car. That doesn't mean it doesn't fit other years and models though.
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By Lanny White - 5 Years Ago
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Thanks, Hoosier Hurricane. I have three separate 1954 Mercury shop manuals, repair and parts, and one covers '53-'54 and another '54-55. I had guessed the prefix was for '53 but wanted to be sure before making it available for sale.
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By oldcarmark - 5 Years Ago
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According to my Parts Catalog 52 and 53 Ford Passenger Car with standard Heater use the same Switch.
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By DryLakesRacer - 5 Years Ago
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Fords prefix is good but I've always liked Harley Davidsons suffix. after the Part # there is a dash XX and what ever the number is the year it was first used. My 91 has parts that were first made as early as 72.
All these #'s are good to know..
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