Coil Boot for 2003-2004 Cadillac CTS & More - ThunderSpark 900-P2077

$74.99

Part number: 900-P2077

UPC: 724620107122

Condition: New

Weight: 0.27 LBS

Item Package Code: EA

Part Has Core (Y/N): N

Item Package Quantity: 1

$74.99

Current Stock: 11

Quantity:

Adding to cart… The item has been added

Have questions?

Ask an Expert

ThunderCore PRO Coil Boot P/N:900-P2077

$74.99

Description

Keep high-voltage spark flowing cleanly from coil to plug with the ThunderCore PRO Coil Boot (P/N 900-P2077), an OE-replacement direct fit for the 1999-2001 Cadillac Catera and 2003-2004 Cadillac CTS — see the "Vehicles it fits" section for engine-specific coverage. In coil-on-plug (COP) and coil-near-plug (CNP) ignition systems, the coil boot serves as the insulative path between the ignition 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 cause, this replaces it to help restore proper spark isolation and secure coil-to-plug contact.

Restores ignition insulation: replaces worn or cracked boots to help maintain proper spark isolation and limit voltage loss.
OE fit: designed to match factory ignition coils and spark plugs for COP and CNP systems.
OE replacement quality: engineered to match OE dielectric strength, boot length, and connector geometry.
Heat & chemical resistant: constructed from high-temp silicone and reinforced materials to resist oil, fuel, and under-hood heat.

Interchange: 671-6292 · 36-2079 · 36-2094
6716292 · 362079 · 362094 · SPP119E

Product information is for general reference and may contain errors. See our Disclaimer.

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

This part cross-references / interchanges with the following part numbers:

671-6292, 36-2079, 36-2094, SPP119E

Buyer's Q&A

Frequently Asked Questions

What does the ThunderCore PRO Coil Boot 900-P2077 do?

In coil-on-plug and coil-near-plug systems, it provides the insulative path between the ignition coil and the spark plug, maintaining high-voltage insulation and secure coil-to-plug contact.

Which vehicles does it fit?

It's a direct-fit replacement for the 1999-2001 Cadillac Catera and 2003-2004 Cadillac CTS. Check the "Vehicles it fits" section to confirm engine-specific coverage for your vehicle.

What are signs a coil boot may need replacing?

Misfires, hard starting, or arc-through can be signs of a boot degraded by heat, vibration, or chemical exposure. Diagnose the cause first, since these symptoms can have other sources.

What is the boot made of?

It's constructed from high-temp silicone and reinforced materials designed to resist oil, fuel, and under-hood heat.

Is this an OE-replacement part?

Yes. It's engineered to match OE dielectric strength, boot length, and connector geometry for the listed applications.