Restore proper spark insulation across a full cylinder set with the ThunderCore PRO Coil Boot Kit 900-P2072-8. This OE-replacement kit is a direct-fit for the 2008-2014 Ford Expedition, 2008-2013 Lincoln Navigator, 2008-2010 Ford Mustang, F-150, Explorer and Explorer Sport Trac, and 2009-2010 Mercury Mountaineer, plus more — see the "Vehicles it fits" section for the full application list.
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. Heat, vibration, and chemical exposure can degrade a boot over time, which may lead to arc-through, misfires, or hard starting. If worn or cracked boots are the cause, this kit replaces them to help restore spark isolation and secure coil-to-plug contact.
- Restores Ignition Insulation: Replaces worn or cracked boots to help maintain proper spark isolation and limit voltage loss.
- Complete Kit Coverage: Includes the boots, springs, and insulators for full-cylinder service — ideal for ignition tune-ups or preventative maintenance.
- OE Replacement Quality: Engineered to match OE dielectric strength, boot length, and connector geometry.
- Heat & Chemical Resistant: Constructed from high-temp silicone and reinforced materials to resist oil, fuel, and under-hood heat.
Interchange: 128045 · CPBK240
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
What comes in the ThunderCore PRO Coil Boot Kit 900-P2072-8?
The kit includes the boots, springs, and insulators needed for full-cylinder service, making it suited to ignition tune-ups or preventative maintenance.
What does a coil boot do?
In coil-on-plug (COP) and coil-near-plug (CNP) systems, the boot forms the insulative path between the ignition coil and the spark plug, maintaining high-voltage isolation and secure coil-to-plug contact.
What are signs the coil boots may need replacing?
Boots can degrade from heat, vibration, or chemical exposure, which may show up as arc-through, misfires, or hard starting. Diagnose the cause before replacing, as these symptoms can have other sources.
Which vehicles does this kit fit?
It fits applications such as the 2008-2014 Ford Expedition, 2008-2013 Lincoln Navigator, 2008-2010 Ford Mustang, F-150 and Explorer, and 2009-2010 Mercury Mountaineer. See the "Vehicles it fits" section for the full list.
Is this an OE-replacement part?
Yes. It is engineered to match OE dielectric strength, boot length, and connector geometry, and is built from high-temp silicone and reinforced materials to resist oil, fuel, and under-hood heat.
