Keep high-voltage spark reaching the plug on your 2013-2017 Chevrolet Sonic with the ThunderCore PRO Coil Boot 900-P2121. In coil-on-plug (COP) and coil-near-plug (CNP) ignition systems, the coil boot provides the insulative path between the ignition coil and the spark plug. With heat, vibration, and chemical exposure, boots can degrade and lead to arc-through, misfires, or hard starting — if a worn or cracked boot is the cause, this OE-replacement boot replaces it.
For the exact engine applications on your Sonic, see the "Vehicles it fits" section.
Interchange: SPP188E
This part cross-references / interchanges with the following part numbers:
What does a coil boot do?
In coil-on-plug and coil-near-plug systems, the coil boot is the insulative path between the ignition coil and the spark plug, keeping high-voltage spark isolated and delivering it to the plug.
What are signs my coil boot may need replacing?
Degraded boots can cause arc-through, misfires, or hard starting. Diagnose the cause first, since these symptoms can also come from coils, plugs, or other ignition faults.
Does this fit my Chevrolet Sonic?
It is a direct-fit replacement for the 2013-2017 Chevrolet Sonic. Check the "Vehicles it fits" section to confirm the correct engine application for your vehicle.
What is the coil boot made of?
It is constructed from high-temperature silicone and reinforced materials designed to resist oil, fuel, and under-hood heat.
What number does this part interchange with?
This ThunderCore PRO coil boot, MPN 900-P2121, interchanges with SPP188E.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
