53-660 Single Fire Programmable Ignition Kit Compatible with Harley Big Twin 1970–1999 (Except Twin Cam), Sportster 1986–2003, EVO Shovelhead Engines

This 53-660 Single Fire Programmable Ignition Kit is designed Compatible with Harley Big Twin models from 1970–1999 (except Twin Cam) and Sportster 1986–2003 (except S models). The kit features a high-energy single fire coil helping provide reliable ignition and smooth engine performance. With programmable ignition capabilities (programming kit required), this system allows adjustable timing, rev limits, Built-in electrical protection helps enhance durability and long-term reliability. Package includes rotor, ignition module, single fire coil, and plug wires. Ideal for Evolution and Shovelhead style engines. Not compatible with fuel injected models.

• Vehicle Fitment Compatible with Harley Big Twin 1970–1999 (Except Twin Cam) and Sportster 1986–2003 (Except “S” Models). Works with Evolution Sportsters and most nose cone style Shovelhead & EVO aftermarket engines. Not for fuel injected models.
• Single Fire Ignition Performance Single fire ignition system designed to fire each cylinder independently. designed to support stable spark delivery.
• Programmable Ignition Control Supports programmable ignition curves and rev limits when used with a programming kit. Features include adjustable timing, rear cylinder offset (±10°), programmable rev limiter, and separate break-in rev limiter.
• Built-In Protection Designed with intelligent over-voltage, over-current, and short-circuit protection to help safeguard ignition components during operation.
• Complete Kit & Warranty Direct replacement for OE 53-660 / 60-53-660-06. Backed by a 12-month warranty. Professional installation recommended (instructions not included).