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Visually inspect the ring to confirm it is secure and has not damaged the bellows
It is designed for OMC Stern Drive 2
Symptoms include engine overheating (especially at idle or low speeds)
A "half-moon" or Woodruff key is a specific semi-circular shape
Ignition Sensor Kit – Fits MerCruiser GM V6 & V8 (Replaces 87-91019A2, 87-892150Q02) 55hp Visually inspect the ring toProduct Details This Ignition Sensor Kit is a crucial component designed for MerCruiser V6 and V8 engines equipped with Thunderbolt IV & V electronic ignition systems, specifically covering models from 1981 to 1997. It ensures reliable spark timing, restoring engine performance and efficiency for a wide range of power ratings, including 4. 3L, 5. 0L, 5. 7L, 7. 4L, and 8. 2L models. This kit serves as a direct aftermarket replacement for Mercury
