S&S Cycle HI-4N Ignition Module Kit for Harley-Davidson – Part 550-0502

Upgrade your Harley-Davidson motorcycle with the S&S Cycle HI-4N Ignition Module Kit, designed to deliver more power and improved ignition performance. This comprehensive kit includes an advanced ignition module, S&S ignition coil, and correctly sized spark plug wires, providing a complete ignition upgrade for select Harley models. The all-metal housing ensures superior heat dissipation, maintaining optimal performance even under demanding riding conditions. The built-in single-fire and dual-fire functions offer versatile ignition options, allowing riders to customize their bike's spark timing to enhance power delivery and throttle response.
Features include ignition advance and timing degree markings on the metal flange for precise adjustments, while a convenient cable notch facilitates straightforward installation and minimizes cable damage. The integrated sensor and magnet housings, constructed within a durable all-metal back plate, shield critical components from damage during installation. High-temperature-resistant samarium/cobalt magnets inside the flux concentrators ensure accurate and reliable ignition triggering, contributing to consistent engine performance. Fully enclosed electronics are resistant to vibration, moisture, and dirt, with all electronic components mounted directly to the metal housing, which acts as a heat sink to maintain optimal operating temperatures.
Additional features include four rotary switches for easy selection of ignition mode, advance rate, and rev limit, providing accurate and repeatable settings for fine-tuning your motorcycle’s ignition system. Made in the USA, this kit is tailored specifically for Harley-Davidson models that are not fuel-injected, ensuring compatibility and optimal performance. Whether you're looking to increase horsepower, improve throttle response, or enhance engine reliability, the S&S Cycle HI-4N Ignition Module Kit offers a professional-grade solution for serious riders seeking dependable ignition upgrades.

Features:

• More power than stock ignition for improved engine performance

• Single-fire and dual-fire functions integrated into one module

• All-metal housing provides enhanced heat dissipation

• Ignition advance and timing markings on the metal flange for precise adjustments

• Cable notch in the housing simplifies installation and protects cables

• Sensor and magnet housings built into the all-metal back plate for durability

• Flux concentrators with high-temp samarium/cobalt magnets for accurate ignition triggering

• Electronics are fully enclosed to resist vibration, moisture, and dirt

• All electronics mounted directly to the metal housing, acting as a heat sink

• Four rotary switches for ignition mode, advance rate, and rev limit selection

• Includes ignition module, S&S ignition coil, and correct-length spark plug wires

• Designed specifically for Harley-Davidson models (not for fuel-injected models)

• Made in the USA for quality assurance