Restore reliable spark isolation with the ThunderCore PRO Coil Boot 900-P2069, an OE-replacement boot for coil-on-plug (COP) and coil-near-plug (CNP) ignition systems. It's a direct-fit replacement for the 2006-2009 Ford Fusion, 2006-2013 Mazda 3, Mazda 3 Sport (2009 and 2011-2012), 2006-2014 Mazda 6, 2007-2012 Mazda CX-7, 2006-2008 Mazda MX-5, 2006-2013 Mazda MX-5 Miata, and 2006-2009 Mercury Milan — see the "Vehicles it fits" section for full engine-level coverage.
The coil boot serves as the insulative path between the ignition coil and the spark plug. Over time, boots can degrade from heat, vibration, or chemical exposure, which may lead to arc-through, misfires, or hard starting — signs this boot may need replacing.
- Heat & chemical resistant: constructed from high-temperature silicone and reinforced materials to resist oil, fuel, and under-hood heat.
- Restores ignition insulation: replaces a worn or cracked boot to help maintain proper spark isolation and secure coil-to-plug contact.
- OE-replacement quality: engineered to match OE dielectric strength, boot length, and connector geometry.
Interchange: 671-4284 · 36-2067 · 36-2117
6714284 · 362067 · 362117 · SPP106E
This part cross-references / interchanges with the following part numbers:
671-4284, 36-2067, 36-2117, SPP106E
Frequently Asked Questions
What does this coil boot do?
It serves as the insulative path between the ignition coil and the spark plug, providing high-voltage spark isolation and a secure coil-to-plug connection in COP and CNP ignition systems.
What are signs this boot may need replacing?
Boots can degrade from heat, vibration, or chemical exposure. Arc-through, misfires, or hard starting can be signs a worn or cracked boot needs replacing, though these symptoms can have other causes worth diagnosing first.
What is it made of?
It is constructed from high-temperature silicone and reinforced materials designed to resist oil, fuel, and under-hood heat.
Will it fit my vehicle?
It is a direct-fit replacement for the listed applications, including the Ford Fusion, Mazda 3, Mazda 6, Mazda CX-7, Mazda MX-5, MX-5 Miata, and Mercury Milan. Check the "Vehicles it fits" section to confirm your vehicle.
What numbers does this boot interchange with?
It replaces 671-4284, 36-2067, 36-2117, and SPP106E (also written 6714284, 362067, and 362117).
