Keep high-voltage spark energy where it belongs with the ThunderCore PRO Coil Boot 900-P2085, an OE-replacement coil boot that provides the insulative path between the ignition coil and the spark plug in coil-on-plug (COP) and coil-near-plug (CNP) ignition systems. It installs as a direct-fit replacement for the 2011-2014 Chrysler 200, 2011-2016 Chrysler 300, 2011-2015 Chrysler Town & Country, 2011-2014 Dodge Avenger, Challenger, Charger and Durango, 2011-2015 Dodge Grand Caravan, 2011-2014 Dodge Journey, 2011-2015 Jeep Grand Cherokee, 2012-2015 Jeep Wrangler and 2012-2013 Ram C/V — see the "Vehicles it fits" section for the full list and engine coverage.
- Heat & chemical resistant: constructed from high-temp silicone and reinforced materials to resist oil, fuel, and under-hood heat.
- Restores ignition insulation: replaces worn or cracked boots 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.
Over time, coil boots can degrade from heat, vibration, or chemical exposure, which may lead to arc-through, misfires, or hard starting. If a worn or cracked coil boot is the cause of those symptoms, this boot replaces it and helps restore the high-voltage insulation between coil and plug.
Interchange: 671-6309
6716309 · SPP156E
Frequently Asked Questions
What is the ThunderCore PRO 900-P2085?
It's an OE-replacement coil boot that forms the insulative path between the ignition coil and the spark plug in coil-on-plug (COP) and coil-near-plug (CNP) ignition systems.
What vehicles does it fit?
It fits applications like the 2011-2016 Chrysler 300, 2011-2015 Chrysler Town & Country, 2011-2014 Dodge Charger, 2011-2015 Jeep Grand Cherokee and 2012-2015 Jeep Wrangler — check the "Vehicles it fits" section for the full list.
What are signs a coil boot may need replacing?
Boots can degrade from heat, vibration, or chemical exposure, leading to arc-through, misfires, or hard starting. Diagnose the cause before replacing, since these symptoms have other possible sources.
What is the coil boot made of?
It's constructed from high-temp silicone and reinforced materials designed to resist oil, fuel, and under-hood heat.
What numbers does it interchange with?
It cross-references 671-6309 (6716309) and SPP156E.
