Loom-&-Loom-Clamps > High-Temperature-Protection

Insultherm Spark Plug Boot Insulator - Black

These Fiberglass, High Temp Spark Plug Boot Sleeves offer the same high temperature protection as our Fiberglass, High Temp Loom in an easy slip-on sleeve that will extend the life of expensive spark plug wires by protecting them where they need it most - at the boot. Just slip these 3/4" diameter double thickness sleeves over any spark plug cable and boot (even right angle), to protect them from engine temperatures up to 1,200°F. Once installed, the sleeves require no clearance from hot surfaces, and can even rest directly on hot exhaust headers without burning, melting, becoming brittle, or otherwise affecting performance.


  • Protects up to 1,200°F. Continuous Temperature Range: -70° to 650° C (-94° to 1,202° F)
  • Non conductive
  • Will not support combustion
  • Economical, long lasting protection
  • Easy, slip-on installation
  • Resists gasoline and engine chemicals
  • RoHS, UL
BLACK NATURAL
Item Description Price
1+ I 5+ I 25+
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651 Insultherm Spark Plug Boot Insulator, (FCN0.75BK) Black, 3/4" Dia, 7-1/2" Long (1 MIN)
4.99 I 3.88 I 3.21
1 EA