Unique Spring Design
Kelly Aerospace ignition harnesses 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 contact. Ignition energy is maximized and flashover is reduced to a minimum.

Plated Steel Nut
Steel nuts offer superior strength compared to aluminum nuts and reduce the potential for galling during installation.

Abrasion and Heat Resistant
The abrasion resistant red polymer cover has been engineered specifically for the high-temperature environment of reciprocating engines.

FAA/PMA Approved for:

• Franklin
• Teledyne Continental Motors
• Textron Lycoming