MSD Straight Silicone Spark Plug Boots and Terminals 3301
A straight spark plug boot routes directly in-line with the spark plug – the right choice when a 90-degree boot angle would interfere with plug access, coil-on-plug guards, or nearby frame and engine components. MSD silicone construction and included crimp terminals ensure the spark plug end connection is as solid as the rest of the wire set.
Key Features
- Straight orientation for direct in-line connections at the spark plug end
- Includes crimp terminals – large tabs grasp the wire and wide contacts grip the spark plug receptacle
- High-temperature gray silicone construction maintains flexibility and dielectric properties near exhaust heat
- Sold as a pair – two boots and two terminals per package
Technical Specifications
- Angle: Straight
- Style: Spark plug end
- Wire Diameter Compatibility: 8.5mm
- Material: Silicone
- Color: Gray
- Terminals Included: Yes (2 per package)
- Quantity: 2 per package (sold as a pair)
Fitment Notes
- Fits any ignition system using 8.5mm diameter spark plug wire – universal application; no motorcycle model selection required
- Use at the spark plug end; use MSD 3321 (90ยฐ) or 3322 (straight) socket coil boots at the coil or distributor end
- Use MSD 3503 mini stripper crimper to prepare wire ends before crimping the included terminals





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