Standard Ignition CPBK473 Coil On Plug Boot Direct Ignition Boot

The Standard Ignition CPBK473 is a direct-fit Coil On Plug (COP) Boot, also known as a direct ignition coil boot or spark plug boot. Designed as a precise OE replacement, this boot restores proper high-voltage insulation between the ignition coil and spark plug in coil-on-plug ignition systems.

Key Features:

• Direct OE replacement coil-on-plug boot for a precise, no-modification fit
• Constructed from high-temperature silicone or rubber material to withstand extreme engine bay heat
• Provides superior high-voltage insulation to prevent arcing to the cylinder head or engine block
• Seals out moisture and contaminants that can degrade ignition performance
• Helps eliminate engine misfires, rough idle, and Check Engine light conditions caused by a damaged or cracked boot
• Manufactured to meet or exceed original equipment specifications

The coil-on-plug boot connects the ignition coil directly to the spark plug and is a critical component of modern distributorless ignition systems. Over time, boots can crack, split, or harden, allowing high voltage to arc to the engine rather than reaching the spark plug. Replacing the boot restores proper ignition energy delivery and protects against costly misfires and engine damage. Standard Ignition is a trusted name in OE-quality ignition components with over 100 years of automotive parts experience.