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Apex Aero slick-style ignition harness for 4- and 6-cylinder aircraft engines

Apex harnesses are engineered to deliver spark energy where it belongs – to the spark plugs – and nowhere else.

  • Experimental harnesses are now available. Certified to follow.

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  • $395 - $595

 

  • (ISP) Ignition System Polymer harness cap

    • 29% shorter than legacy Slick-style cap

    • Captive O-ring

    • Captive Fasteners

    • Lightweight

 

  • Provision for harness cap pressurization

 

  • High altitude silicone sealing grommets

 

  • Double extruded silicone, aramid core ignition leads    

 

  • Serviceable leads (replacement parts available)

 

  • 4 and 6-cylinder, automotive and aircraft spark plugs (5/8 and 3/4)​

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  • User configurable - cut leads to length and install spark plug ends (tools included in kit)

Experimental now available. Certified to follow.

Please complete the form below to get on our Certified waiting list for purchase.

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© 2025 by APEX

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