Heat around spark plug wires can lead to frequent part replacement. Installing Nextel™ Spark Plug Boot Insulators will help protect the wires and reduce heat fatigue. The insulators are covered with an abrasion resistant inorganic coating. Unlike other spark plug insulators, Nextel™ Spark Plug Boot Insulators do not yellow or become brittle.

Ordering Information

Available in 3/4" and 1" sizes.
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