New factory Mazda OEM coil pack bolt for NA and Early NB Mazda Miata. This is one of the two top bolts or the one bottom bolt that mount the coil pack to the back of the valve cover and cylinder head. The top two bolts that go into the valve cover are part number 9979-40-820B. The bottom bolt that goes into the cylinder head is part number B61P-18-1A5A (1990-1993) or 9079-41-830 which changed to B366-18-1A5 (1994-2000). Fits 1990-2000. Sold individually as one bolt. Choose type of bolt.
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