|Kelly ignition harness incorporate a negative-pitch spring design (the tip of the coil spring extends inward) allowing the coil spring tip to lie flat against the spark plug electrode, providing 360 degreee contact. Kelly ignition harnesses are FAA/PMA approved for Lycoming, Continental and Franklin engines.|
It’s hard to tell by the listing, but these come two to a box...guess I’ll be shipping a box back 🙄
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