Used factory door glass window regulator attachment grommet for NA and NB Mazda Miata. This is one of either two lower or one upper plastic grommets that push into the door glass and allow the window regulator to be screwed to the door glass. Part numbers B235-58-502 (upper grommet) or UB39-58-502A (lower grommet). There are two lower and one upper grommets per window glass. Fits 1990-2005 Mazda Miata. Sold individually as one grommet. Choose between upper or lower grommet.
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