For 1971-2003 Harley Sportster Except 1200S Programmable Ignition Module 53-644

Programmable Ignition Module for Harley Sportster

This programmable ignition module replaces the factory ignition on 1971-2003 Harley Sportster models except the 1200S, offering adjustable timing curves for tuned engines.

Overview

This programmable ignition module is a direct-fit electronic replacement for 1971-2003 Harley Sportster models except the 1200S. The module lets you dial in timing curves to match engine modifications, improving throttle response and overall rideability. It suits riders running upgraded cams, exhausts, or big bore kits who want more control over spark timing.

Built For Performance

• Programmable timing curves for customized spark advance
• Single fire operation for smoother idle and cleaner combustion
• Electronic design replaces points and mechanical advance
• Fits 1971-2003 Sportster models except the 1200S
• Rated for 12-volt motorcycle electrical systems

Fits These Machines

• for Harley Sportster 1971-2003 except 1200S
• for Harley XL models with compatible ignition wiring
• for Harley Sportster engine builds with upgraded cams or exhaust

On-The-Job Use

• Street riding on modified Sportster builds
• Track and drag use where timing adjustment matters
• Restoration projects replacing worn points ignition
• Tuning sessions after cam or exhaust changes

Specs At A Glance

Good To Know

Q: Will this work on a 1200S Sportster? A: No, this module is listed for 1971-2003 Sportster models except the 1200S, so the 1200S is not supported.

Q: Do I need to change the coil? A: A single fire coil is typically required for proper operation with this module. Confirm your coil type before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.