Help keep ignition voltage on its path from coil to spark plug with the ThunderCore PRO Coil Boot, part number 900-P2066. This OE-replacement boot is a direct-fit application for many vehicles, among them the 2009-2012 Ram 1500, 2009-2010 Dodge Ram 1500 and 2009-2010 Jeep Grand Cherokee. See the Buyer's Guide tab for the full list and engine-specific details.
In coil-on-plug (COP) and coil-near-plug (CNP) ignition systems, the coil boot is the insulating path between the ignition coil and the spark plug. Over time, heat, vibration, or chemical exposure can degrade a boot. A degraded boot may lead to arc-through, misfires, or hard starting. If a worn or cracked boot is the cause, this part replaces it.
Use it to replace a single failed boot or to service more cylinders.
Interchange: 671-6308 · 36-2099 · 36-2106
6716308 · 362099 · 362106 · SPP138E
This part cross-references / interchanges with the following part numbers:
What does the ThunderCore PRO 900-P2066 coil boot do?
It is the insulating path between the ignition coil and the spark plug. It helps keep high voltage isolated and maintains the coil-to-plug connection.
What are signs a coil boot may need replacing?
Heat, vibration, or chemical exposure can degrade a boot, and signs it may need replacing include arc-through, misfires, or hard starting. Diagnose the cause first, because these symptoms can have other sources.
Which vehicles does this coil boot fit?
The listed applications include the 2009-2012 Ram 1500, 2009-2010 Dodge Ram 1500 and 2009-2010 Jeep Grand Cherokee, among others. See the Buyer's Guide tab for the full list and engine details.
What is this coil boot made of?
It is built from high-temp silicone and reinforced materials designed to resist oil, fuel, and under-hood heat.
What part numbers does it interchange with?
It interchanges with 671-6308, 36-2099, 36-2106, and SPP138E.
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.
