Protect your expensive plug lead sets while increasing their lifetime. Insul-boots prevent misfires caused by plug lead burnout. This helps prevent loss in performance and critical engine damage. Double wall construction provides superior protection, while special coatings allow boots to reflect and dissipate heat. Insul-boots are available in 5 colours: red, blue, yellow, black and orange. They withstand 648.9°C (1200°F)  continuous. Universal design fits most boots, even 90°.

Easy installation: Place ring side on end of spark plug boot and slide the open end towards the wire.