These sleeves offer high temperature protection in an easy slip on sleeve, extending the life of spark plug wires.

Slip these 3/4" diameter double thickness sleeves over any spark plug cable and boot to protect them from engine temperatures up to 650°C.

Insultherm Spark Plug Boot Sleeves are:

• completely non-conductive
• resist all engine chemicals
• will not support combustion
• provide an easy, economical solution to the challenge of wire protection in the cramped, high temperature environment of any high performance engine compartment