Restore high-voltage spark insulation and secure coil-to-plug contact with the ThunderCore PRO Coil Boot 900-P2103. It installs as a direct-fit replacement for the 2007-2009 Suzuki SX4 — see the Buyer's Guide tab for the engine-level fitment details. In coil-on-plug (COP) and coil-near-plug (CNP) systems, the coil boot is the insulative path between the ignition coil and the spark plug; over time boots can degrade from heat, vibration, or chemical exposure, and signs it may need replacing include arc-through, misfires, or hard starting. If a worn or cracked boot is the cause, this replaces it.
Designed for compatibility with the factory ignition coils and spark plugs on the listed COP/CNP applications.
Interchange: 36-2091 · 36-2103
362091 · 362103
This part cross-references / interchanges with the following part numbers:
What does this coil boot do?
In coil-on-plug and coil-near-plug ignition systems, it serves as the insulative path between the ignition coil and the spark plug, maintaining spark isolation and secure high-voltage contact.
Will it fit my vehicle?
It's a direct-fit replacement for the 2007-2009 Suzuki SX4. Check the Buyer's Guide tab for the engine-level fitment details before ordering.
What are signs the coil boot may need replacing?
Arc-through, misfires, or hard starting can be signs of a worn or cracked boot. Diagnose the cause first, since these symptoms can have other sources.
What is it made from?
It's constructed from high-temp silicone and reinforced materials engineered to resist oil, fuel, and under-hood heat.
What numbers does this part interchange with?
It cross-references 36-2091 and 36-2103 (also written 362091 and 362103).
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.
