SPK Plug Boot Protectors Hi-Temp Black 2pk

The SPK Plug Boot Protectors Hi-Temp Black 2pk from MOROSO is a critical protective component for any serious engine builder or performance mechanic working with high-heat ignition systems. Spark plug boots—the rubber or silicone covers that cap your ignition coils and connect to the spark plugs—degrade rapidly under underhood temperatures, especially in modified engines running optimized timing curves or forced induction. These protectors shield vulnerable boot material from extreme heat, ozone, fuel vapor, and oil mist, extending ignition reliability and preventing misfires caused by boot cracking or insulation breakdown.

MOROSO engineered these boots with hi-temp rated materials capable of withstanding sustained engine bay temperatures well beyond stock conditions, making them essential for turbocharged, supercharged, or carbureted street and race applications. The black finish provides both thermal absorption and UV protection, while the split-boot design allows installation over existing ignition boots without disassembly of plug wires or coil packs. Each pair weighs just 0.235 lbs and measures 6 x 1 x 8 inches, offering a compact fit that clears headers, intake manifolds, and aftermarket valve covers on tight engine bays.

Engine tuners, hot rod builders, and forced-induction enthusiasts rely on these protectors to ensure consistent spark delivery in high-vibration and high-heat environments where stock boots fail prematurely. Installation requires no special tools—simply slide each boot over your existing plug wire boot and secure as needed. The 2-pack covers two cylinders, so plan accordingly for multi-cylinder protection across your ignition system. Compatible with any ignition system using replaceable spark plug boots, these MOROSO protectors deliver affordable insurance against ignition heat degradation on any modified or vintage engine.