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mike switzer
mike switzer,
Category: Mazda
Satisfied Customers: 710
Experience:  lead diagnostic tech at Aamco
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For a 1992 Miata cruise control module what is the

Customer Question

For a 1992 Miata cruise control module what is the difference between X4T354891 and X4T354891M?
Submitted: 1 month ago.
Category: Mazda
Expert:  mike switzer replied 1 month ago.

the one with the M is the more current than the one without. so it was made after. functionality wise no difference. i should be a direct replacement.