201121B Regulator, black

This Accel black voltage regulator fits late 1984–1990 XL Sportster models with alternator charging systems. Accel regulators use solid-state circuitry that provides consistent, reliable voltage management, protecting your battery and electrical accessories from damaging overcharging. No rewiring or special mounting hardware is required — the unit fits directly in the stock location. If your Evo Sportster's battery keeps dying, the lights pulse at idle, or your voltmeter shows erratic readings, a failing regulator is a likely cause. This Accel unit is a straightforward, proven replacement.