MSD Spark Plug Wire Set 8.5mm Super Conductor

Description

Product Overview

The MSD 31249 8.5mm Super Conductor Spark Plug Wire Set is engineered for high‑performance automotive ignition systems. Each wire incorporates a Dupont Kevlar‑reinforced conductor core that provides exceptional tensile strength while maintaining an impedance of less than 50 ohms per foot, ensuring a strong, consistent spark. The outer sleeve is a proprietary silicone‑synthetic blend that resists heat, abrasion, and chemical exposure, extending service life even under demanding conditions. Packaged dimensions are 11 × 9.5 × 2.8 inches and the set weighs 2.05 lb, making installation straightforward.

Usage

Designed for a wide range of vehicles, this wire set is perfect for both street‑driven cars and track‑day machines. Whether you’re upgrading a classic muscle car, a modern sports sedan, or a high‑output race engine, the 8.5mm diameter provides the optimal balance of flexibility and durability. Install the set in any ignition system that uses standard HEI connectors, and enjoy improved throttle response and smoother engine operation.

Why Choose Us

MSD is a trusted name in ignition technology, and this wire set reflects the brand’s commitment to quality and innovation. The ferro‑magnetic impregnated core acts as an effective EMI choke, reducing electrical interference and enhancing spark energy. Each wire is wound tightly, compressing forty feet of conductor into a single foot to maximize EMI suppression. Backed by a warranty and positive customer reviews (4.4/5 stars from 129 reviewers), this product offers confidence and reliability for demanding drivers.

Key Features

• Dupont Kevlar core for superior tensile strength and durability
• Less than 50 ohms per foot for low‑resistance, high‑energy spark
• Ferro‑magnetic impregnated core provides effective EMI choking
• Proprietary heat‑resistant silicone‑synthetic outer sleeve
• Compact winding: 40 ft of conductor in a 1‑ft length for maximum EMI suppression

FAQ

What vehicles are compatible with this wire set?

The MSD 8.5mm Super Conductor set fits any vehicle that uses standard HEI connectors and requires 8.5mm diameter spark plug wires, covering most American, European, and Asian models.

How does the Kevlar core improve performance?

Kevlar adds high tensile strength, reducing the risk of wire breakage under engine vibration while maintaining low electrical resistance for a stronger spark.

Is the wire set resistant to high engine temperatures?

Yes, the outer silicone‑synthetic blend is formulated to withstand extreme heat and abrasion, ensuring longevity even in high‑performance or racing applications.

Can I install the wires myself?

Absolutely. The set comes with clear instructions and standard HEI connectors, making DIY installation straightforward for most users.

What warranty does MSD provide?

MSD offers a standard warranty covering manufacturing defects, giving you peace of mind with your purchase.