Restore reliable spark insulation and secure coil-to-plug contact with the ThunderCore PRO Coil Boot Kit (P/N 900-P2089-6), an OE-replacement service kit for the 2006-2007 Kia Optima — see the Buyer's Guide tab for engine-specific coverage. In coil-on-plug (COP) and coil-near-plug (CNP) systems, the coil boot forms the insulative path between the ignition coil and the spark plug. Over time these boots can degrade from heat, vibration, or chemical exposure, which may lead to arc-through, misfires, or hard starting; if worn boots are the cause, this kit replaces them.
Whether you're servicing a single cylinder or the entire engine set, this kit helps restore ignition insulation for the listed application.
Interchange: 186043
This part cross-references / interchanges with the following part numbers:
What does this coil boot kit include?
It includes the boots, springs, and insulators needed for full-cylinder replacement, making it suitable for ignition tune-ups or preventative maintenance.
What does a coil boot do?
In coil-on-plug (COP) and coil-near-plug (CNP) systems, the coil boot forms the insulative path between the ignition coil and the spark plug, maintaining high-voltage spark isolation.
What vehicles does this kit fit?
It is a direct-fit replacement for the 2006-2007 Kia Optima. Check the Buyer's Guide tab to confirm engine-specific coverage for your vehicle.
What are signs the coil boots may need replacing?
Boots that degrade from heat, vibration, or chemical exposure can cause arc-through, misfires, or hard starting. Diagnose the cause first; if worn boots are responsible, this kit replaces them.
What are the boots made of?
Each boot is constructed from high-temp silicone and reinforced materials engineered to resist oil, fuel, and under-hood heat.
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.
