Description
Product Overview
The MSD 31009 8.5mm Super Conductor Spark Plug Wire Set is engineered for precision and durability. Constructed from high‑grade plastic, each wire measures 30 inches, allowing you to cut to the exact length required for your engine configuration. The set includes a mini‑stripper‑crimper, ensuring clean terminal preparation and a secure connection. With a compact 1 x 1 x 1 inch package size and a lightweight 295‑gram design, it ships efficiently while maintaining robust performance standards.
Usage
Designed for automotive enthusiasts and professional technicians, this wire set excels in both daily driving vehicles and high‑performance applications. Whether you are rebuilding a classic car, tuning a race engine, or simply replacing worn‑out wires, the MSD set provides a reliable conduit for high‑energy spark delivery. Its universal 8.5mm size fits a broad range of spark plug types, making it suitable for most gasoline engines.

Why Choose Us
MSD’s reputation for automotive excellence is backed by decades of engineering expertise. This wire set features Super Conductor technology that minimizes resistance, ensuring a stronger spark and improved combustion efficiency. The included mini‑stripper‑crimper simplifies installation, reducing the risk of damaged terminals. Backed by a manufacturer warranty, the product guarantees long‑term reliability and peace of mind for every user.
Key Features
- Extra‑long 30″ wires can be trimmed to custom lengths for perfect fit.
- Durable plastic construction resists heat and chemical exposure.
- Mini‑stripper‑crimper included for quick, clean terminal preparation.
- Super Conductor technology reduces electrical resistance for stronger spark.
- Universal 8.5mm size compatible with most gasoline engine spark plugs.
FAQ
Can I use these wires on a diesel engine?
The MSD 8.5mm set is designed for gasoline engines. While it may physically fit some diesel applications, we recommend using a wire set specifically rated for diesel to ensure optimal performance.
How do I trim the wires safely?
Use a sharp wire cutter or scissors to cut the wire to the desired length, then strip the ends with the included mini‑stripper before crimping with the provided crimper.
What warranty does MSD offer?
MSD provides a standard manufacturer warranty covering defects in materials and workmanship for a period specified on the packaging.
Is the plastic material heat‑resistant?
Yes, the high‑temperature plastic used in this set is formulated to withstand the heat generated in typical engine environments.
Do I need additional tools for installation?
Beyond the included mini‑stripper‑crimper, a basic set of hand tools such as a screwdriver and torque wrench is sufficient for most installations.





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