MSD 6421 6AL-2 Ignition Box Digital w/ Built-In 2 Step SBC BBC SBF Chevy Ford alternators-generators-and-hardware 25/8 V 1976 - 1978

25/8 V 1976 - 1978 GMC C25 Sierra Grande 4

Year Make Model Submodel Engine Size 1989 - 1990 Jeep Wrangler Laredo 1994 Jeep Wrangler SE 1988 - 1994 Jeep Wrangler Sahara 1994 - 1997 Jeep Cherokee Country 1994 - 1999 Jeep Cherokee Sport 1992 - 1994 Jeep Wrangler S 1991 - 1993 Jeep Wrangler Base 1995 Jeep Wrangler 1994 - 1999 Jeep Cherokee SE 1988 - 1993 Jeep Cherokee 1989 - 1992 Jeep Wrangler Islander 1991 - 1994 Jeep Wrangler Renegade 1997 Jeep TJ Sahara 1997 Jeep Wrangler Sport 1993 Jeep Grand Cherokee Laredo 1996 - 1999 Jeep Cherokee Classic 1998 - 1999 Jeep TJ 1988 - 1992 Jeep Comanche 1998 - 1999 Jeep Cherokee Limited 1993 Jeep Grand Cherokee Base

92/6 V 2014 - 2018 Chevrolet Silverado 1500 3

09/8 V 1980 GMC K1500 4

MSD 6421 6AL-2 Ignition Box Digital w/ Built-In 2 Step SBC BBC SBF Chevy Ford alternators-generators-and-hardware 25/8 V 1976 - 1978Overview: MSD 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. The spark output of the new box has been turned up to 535 volts of primary voltage with spark energy reaching up to 135