Coils are a wear item on an LS truck engine, and a full set is cheap insurance against a misfire code at 150,000 miles. These eight coils mount in place of the factory square coils on 1999-2007 GM L-Series truck applications and accept the OEM connectors, so the job needs no adapters and no harness changes.

MSD 55108 Ignition Coils Features:

• Direct bolt-on replacement using the factory mounting locations.
• Accepts OEM connectors for a plug-in installation.
• Better core materials and winding ratios raise spark energy over a worn factory coil.
• Restores throttle response and helps recover lost fuel economy.