Upgrade your Harley-Davidson’s ignition system with this premium replacement ignition coil, engineered to deliver consistent spark energy and reliable performance mile after mile. Designed as a direct fit replacement, this coil matches the specifications and mounting points of the original equipment, making installation straightforward with no modifications required. It is the ideal solution for restoring lost power, improving throttle response, and solving intermittent misfire issues caused by a failing stock coil.
This ignition coil is compatible with a range of Harley-Davidson models and serves as a direct replacement for OEM part numbers 31656-07, 140412, and 3165607. Whether you are searching under reference 140412 or the commonly cross-referenced 31656-07 and 3165607, this unit is manufactured to meet or exceed the original factory standards. Precision-wound primary and secondary windings ensure optimal resistance values and high voltage output, delivering a strong, clean spark across the entire RPM range. That translates into easier cold starts, smoother idle, and crisp acceleration when you twist the throttle.
Durability is built into every component. The high-temperature epoxy encapsulation protects internal windings from vibration, moisture, and extreme engine heat, preventing internal short circuits that often plague inferior coils. The robust housing and sealed connectors resist corrosion and ensure a secure electrical connection even in harsh riding conditions. This ignition coil maintains its electrical integrity over the long haul, so you can count on reliable performance on long highway runs or during spirited backroad riding.
By directly replacing Harley-Davidson part numbers 31656-07, 140412, and 3165607, this coil eliminates guesswork. Simply match your model’s requirements with the listed references, and you are ready to bring your ignition system back to peak efficiency. It works harmoniously with stock ignition modules and aftermarket systems alike, supporting consistent combustion that protects your engine and improves fuel economy. Choose this professional-grade ignition coil for a hassle-free upgrade that keeps your Harley running strong and firing on every stroke.
Model: 140412 3165607