MSD Ignition Unit 6AL - 2 Ignition Control Each#MSD6421 SCR-ES12R PosiStop reduces setup time and

PosiStop reduces setup time and increases productivity

Part # 999043

Hummer: 2003-2010

18 & 20mm)

MSD Ignition Unit 6AL - 2 Ignition Control Each#MSD6421 SCR-ES12R PosiStop reduces setup time andMSD is excited to announce the next generation of 6 Series ignition controls the 6AL 2! The ignition control combines a new housing, new digital controls, and more power in a sleek package. Inside the new cast aluminum housing, you'll find an advanced micro controller that manages the built in two step rev limiter. Features: All new housing, same reliable digital circuitry and performance Built in 2 Step rev control adjustable with rotary dials Higher