ThunderCore PRO Coil Boot Kit 900-P2058-4
ThunderCore PRO Coil Boot Kit 900-P2058-4

Coil Boot Kit for 2012-2013 Mercedes-Benz C250 & More - ThunderSpark 900-P2058-4

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$70.99
MPN: 900-P2058-4
UPC: 724620109133
Item Package Quantity: 1
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ThunderCore PRO Coil Boot Kit P/N:900-P2058-4
ThunderCore PRO Coil Boot Kit P/N:900-P2058-4
$70.99

Keep every high-voltage connection sealed and your ignition firing cleanly with the ThunderCore PRO Coil Boot Kit 900-P2058-4. This OE-replacement service kit is a direct-fit replacement for the 2003-2005 Mercedes-Benz C230 and 2012-2013 Mercedes-Benz C250 — see the Buyer's Guide tab for full engine-level fitment.

In coil-on-plug (COP) and 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, which can lead to arc-through, misfires, or hard starting. If worn boots are the cause of those symptoms, this kit replaces them.

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

Interchange: 144059 · 925S

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

144059, 925S

Frequently Asked Questions

What does the ThunderCore PRO Coil Boot Kit 900-P2058-4 do?

The coil boots form the insulative path between the ignition coil and the spark plug in coil-on-plug and coil-near-plug systems, maintaining spark isolation and secure coil-to-plug contact.

Which vehicles does this kit fit?

It is a direct-fit replacement for the 2003-2005 Mercedes-Benz C230 and 2012-2013 Mercedes-Benz C250. Check the Buyer's Guide tab to confirm engine-level fitment for your vehicle.

What is included in the kit?

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

What are signs the coil boots may need replacing?

Boots can degrade from heat, vibration, or chemical exposure, which may show up as arc-through, misfires, or hard starting. Diagnose the cause before replacing.

What are the boots made from?

Each boot is constructed from premium silicone and other high-temperature, reinforced materials designed to resist oil, fuel, and under-hood heat.

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