1991 Ford Mustang Standard Spark Plug Wires

Motorcraft Plug Wires are Manufactured of premium-quality materials to strict Ford Engineering standards. High-Dielectric Insulation helps maintain and control voltage delivery while reducing Radio Frequency Interference. EPDM/Silicone wire jacket, spark plug & coil/ distributor insulators help protect against oil and high temperatures. Optimized wire lengths help minimize part numbers while still providing proper fit. Designed and Tested to Stringent Ford Standards.

Product Features:

• Backed by Motorcraft’s Service Parts Warranty
• Designed for long life – key life durability testing (equivalent to 10 years/150,000 miles) is conducted in addition to on-vehicle durability testing.
• Optimized wire lengths help minimize part numbers while still providing proper fit.
• Wires are optimum lengths for easy installation.
• EPDM/Silicone wire jacket, spark plug AND coil / distributor insulators help protect against oil and high temperatures.
• Motorcraft ignition components help prevent false check engine lights.

The MSD 8.5mm super conductor wire is the performance wire. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 12 inch length of super conductor wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) or choke. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. Available in universal kits and bulk lengths.

Product Features:

• Custom Fit For Make And Model Listed
• Wires Are Pre-Cut To Exact Specifications
• Bolt-on Performance
• Conductor core features DuPont Kevlar material for increased tensile strength
• Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
• Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

The Motorcraft Ignition wire set is a direct fit OEM replacement that guarantees the same performance and quality provided by the vehicle manufacturer.

Product Features:

• OEM quality
• OEM connectors for easy Installation.
• Resistant to high temperatures, corrosion and vibration.
• Ignition noise suppressed.
• Reduces the chance of misfire
• Increases engine life
• Protects against wire set failure

DENSO First Time Fit Ignition Wire Sets are identical in form fit color and performance to the factory-installed wire sets. Every part of each wire sets construction meets or exceeds OE/OES standards.

Product Features:

• Each wire is pre-cut to exact length so the wire set is ready to install right out of the box
• Identical OE end caps are designed to “click” into place for easy installation and a secure fit
• Strong connections – through a patented process, the terminals are attached to provide an extremely strong connection, ensuring the cable and boot will not separate during removal and installation