Design Engineering DEI 10820 Spark Plug Wire Boot Heat Shrink Tubes 18mm x 1.5" Red (25-Pack)

Design Engineering DEI 10820 spark plug wire boot heat shrink tubes provide essential thermal protection for spark plug boots and wire connections in high-temperature engine environments. These professional-grade heat shrink tubes are designed to shield ignition components from extreme heat that can cause premature failure, cracking, and performance issues.

Key Features:

• 18mm diameter size fits most standard spark plug boots and wire terminals
• 1.5-inch length provides adequate coverage for boot and wire connection area
• High-visibility red color for easy identification and professional appearance
• Pack of 25 tubes for multi-cylinder engines or shop use
• Heat-activated shrink design creates tight, protective seal
• Protects against radiant heat from headers, exhaust manifolds, and turbochargers
• Helps prevent ignition misfire caused by heat-damaged boots
• Easy installation with standard heat gun

These heat shrink tubes are ideal for performance engines, race applications, and any vehicle where spark plug wires run close to exhaust components. The heat shrink material contracts when heated to form a tight barrier that insulates boots from damaging temperatures while maintaining proper ignition system function.