Thunderheart

Thunderheart

Thunderheart Stand Alone Ignition for Harley-Davidson

Thunderheart builds electronic ignition systems for carbureted Harley-Davidson motorcycles. The Thunderheart Harley-Davidson ignition lineup replaces points-based ignition with a reliable stand alone electronic unit. Riders on older carbureted Harley platforms trust Thunderheart for consistent spark timing and dependable starting performance.

TMF Cycles stocks one confirmed Thunderheart product. The Thunder Heart Stand Alone Ignition is priced at $314.99 and is currently out of stock. This unit operates independently without relying on factory ignition components. It replaces points completely with self-contained electronic timing on carbureted Harley builds.

The Thunder Heart Stand Alone Ignition fits Evo Big Twin, Sportster, Shovelhead, and FXR platforms. This is a carbureted platform product only. It is not compatible with fuel injected Milwaukee-Eight or Twin Cam EFI models. Riders can explore ignition and spark at TMF Cycles for related electrical upgrades.

Thunderheart focuses on stand alone ignition solutions for older Harley platforms that benefit most from eliminating points. Electronic timing delivers consistent spark advance and improved throttle response on carbureted builds. Simple installation and self-contained design make this a practical upgrade for Evo, Shovelhead, and FXR riders.

Browse the full Thunderheart collection at TMF Cycles for ignition upgrades. Riders can also explore the electrical section and ignition and spark at TMF Cycles. Contact the TMF team for availability and fitment questions.