ThunderCore PRO Coil Boot Kit 900-P2102-4
ThunderCore PRO Coil Boot Kit 900-P2102-4

ThunderCore PRO Coil Boot Kit P/N:900-P2102-4

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$107.99
MPN: 900-P2102-4
UPC: 724620109614
Item Package Quantity: 1
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ThunderCore PRO Coil Boot Kit P/N:900-P2102-4
ThunderCore PRO Coil Boot Kit P/N:900-P2102-4
$107.99

Restore reliable spark insulation with the ThunderCore PRO Coil Boot Kit (P/N 900-P2102-4), an OE-replacement kit that drops in on the 2006-2007 Mazda 5 — see the Buyer's Guide tab to confirm the engine and application for your vehicle. In coil-on-plug (COP) or coil-near-plug (CNP) systems, the coil boot forms the insulative path between the ignition coil and the spark plug. Over time these boots can degrade from heat, vibration, or chemical exposure, leading to arc-through, misfires, or hard starting; if worn boots are the cause, this kit replaces them.

  • Restores Ignition Insulation: replaces worn or cracked boots to help maintain proper spark isolation and limit voltage loss.
  • OE Replacement Quality: engineered to match OE dielectric strength, boot length, and connector geometry.
  • Heat & Chemical Resistant: constructed from high-temperature silicone and reinforced materials to resist oil, fuel, and under-hood heat.
  • Complete Kit Coverage: includes the boots, springs, and insulators needed for full-cylinder replacement — well suited to ignition tune-ups or preventative maintenance.

Interchange: 184084 · 9009S

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

184084, 9009S

Frequently Asked Questions

What does this coil boot kit do?

It supplies the insulative boots that form the high-voltage path between each ignition coil and the spark plug in coil-on-plug or coil-near-plug systems, helping maintain proper spark isolation.

What is included in the kit?

The kit includes the boots, springs, and insulators needed for full-cylinder replacement, making it suited to ignition tune-ups or preventative maintenance.

Which vehicles does it fit?

It is a direct-fit replacement for the 2006-2007 Mazda 5. Check the Buyer's Guide tab to confirm the engine and application for your vehicle.

What are signs the coil boots may need replacing?

Boots that degrade from heat, vibration, or chemical exposure can cause arc-through, misfires, or hard starting. Diagnose the underlying cause before replacing.

What material are the boots made from?

They are constructed from high-temperature silicone and reinforced materials designed to resist oil, fuel, and under-hood heat.

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