Restore the insulative path between the ignition coil and spark plug with the ThunderCore PRO Coil Boot 900-P2040. It drops in as a direct-fit replacement for the 2000-2003 Cadillac DeVille, 2000-2002 Cadillac Eldorado, 2000-2003 Cadillac Seville, and 2001-2003 Oldsmobile Aurora — see the Buyer's Guide tab for engine-level fitment.
In coil-on-plug (COP) and coil-near-plug (CNP) ignition systems, the coil boot provides the high-voltage insulation and secure connection between the coil and the spark plug. Over time, heat, vibration, and chemical exposure can degrade a boot, leading to arc-through, misfires, or hard starting. If a worn or cracked boot is the source of those symptoms, this replacement helps re-establish proper spark isolation and coil-to-plug contact.
- Restores ignition insulation: replaces worn or cracked boots to help maintain spark isolation and reduce voltage loss.
- OE-replacement fit: engineered to match OE dielectric strength, boot length, and connector geometry for factory COP and CNP coils and plugs.
- Heat & chemical resistant: constructed from high-temperature silicone and reinforced materials to resist oil, fuel, and under-hood heat.
Interchange: 671-8073 · CH-11 · 36-2015 · 36-2019
6718073 · CH11 · 362015 · 362019 · BOOT1011 · SPP41E
This part cross-references / interchanges with the following part numbers:
671-8073, BOOT1011, CH-11, 36-2015, 36-2019, SPP41E
