MSD Straight Spark Plug Boots 8.5mm Silicone Gray 2-Pack 3301

Worn or damaged spark plug boots compromise ignition reliability and can lead to misfires and performance loss. MSD's Straight Spark Plug Boots deliver the heat resistance and electrical integrity your ignition system demands, ensuring consistent spark delivery across all RPM ranges. As a direct replacement consumable, quality boots like these are essential maintenance for any high-performance engine.

These silicone boots are engineered to withstand underhood temperatures while maintaining a secure connection to your 8.5mm spark plug wires. The straight boot design simplifies installation on standard wire configurations, and the two-pack format covers a common replacement need without excess inventory. Built with high-quality silicone compound rather than inferior rubber alternatives, they resist degradation from heat cycling and ozone exposure—critical factors in extending ignition system longevity.

• Silicone construction
• 8.5mm wire compatible
• Straight boot design
• Superior heat resistance
• Spark loss protection
• Gray color
• Sold as pair
• Bolt-on installation
• MSD quality engineered