These aircraft quality sleeves offer high temperature protection in an easy slip on sleeve. Extends the life of expensive spark plug wires and boots. Prevent excessive heat generated by exhaust headers from hardening and cracking of ignition wires and boots that will lead to engine misfire and robbing horsepower. Just slip these 1″ diameter double wall fiberglass sleeves over any spark plug boot to protect them from high exhaust temperatures up to 1,200°F. Slip the sewn end over the spark plug for maximum protection.
Fits most Hot Rods, Classics, and Hi Performance cars wither it’s Chevy, Ford, Oldsmobile, Pontiac, Buick, or Mopar.
KoolSox Spark Plug Boot Insulators are non-conductive and resist all engine chemicals.