Keep high-voltage spark traveling cleanly from the ignition coil to the plug with the ThunderCore PRO ThunderSpark Coil Boot 900-P2129 (also written 900P2129). It's an OE Replacement coil boot that restores the insulated path between the coil and spark plug in coil-on-plug (COP) and coil-near-plug (CNP) systems, and it fits a wide range of Kia, Hyundai, Genesis, Dodge and Ram vehicles — including the 2006-2016 Kia Optima, 2006-2015 Hyundai Sonata, 2007-2018 Hyundai Santa Fe, 2010-2013 Kia Forte, 2011-2018 Kia Sorento and 2012-2013 Dodge H100 Van. See the "Vehicles it fits" section for the full list of applications and engines.
Over time coil boots can degrade from heat, vibration, and chemical exposure, which may lead to arc-through, misfires, or hard starting. If a cracked or worn boot is the cause of those symptoms, replacing it helps restore proper high-voltage insulation and secure coil-to-plug contact.
Interchange: SPP176E
This part cross-references / interchanges with the following part numbers:
What does this coil boot do?
It serves as the insulative path between the ignition coil and the spark plug in coil-on-plug and coil-near-plug systems, providing high-voltage insulation and a secure coil-to-plug connection.
Which vehicles does the 900-P2129 fit?
It fits many Kia, Hyundai, Genesis, Dodge and Ram models, such as the 2006-2016 Kia Optima, 2006-2015 Hyundai Sonata and 2007-2018 Hyundai Santa Fe. Check the "Vehicles it fits" section for the full list.
What are signs a coil boot may need replacing?
Worn or cracked boots can allow arc-through, misfires, or hard starting. Diagnose the cause first; if a failed boot is the source, this replaces it.
What is the interchange number for this part?
This coil boot cross-references to SPP176E.
What is this boot made from?
It's constructed from high-temperature silicone and reinforced materials engineered to resist oil, fuel, and under-hood heat.
No reviews yet — be the first to review this product.
Write a Review
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.
