NGK 8158 Spark Plug Wire Set

NGK Spark Plug Wire Set for Mazda and Ford

The NGK Spark Plug Wire Set 8158 is a specific-fit ignition wire set built for select 1993-1995 Mazda 626, 1993-1994 Ford Probe, and 1993-1994 Mazda MX-6 applications. It uses silicone insulation, a blue outer jacket, and a Mag (Var. Pitch) core to support stable spark delivery and noise suppression in the ignition system.

Key Features

• Specific-fit spark plug wire set for confirmed vehicle applications
• Silicone insulation for heat resistance and durability
• Blue insulation color for easy visual identification
• Mag (Var. Pitch) core material
• Noise suppression type: Yes
• 7.00 mm insulation outside diameter
• NGK part number 8158 / RC-ZE28

Product Details

NGK Spark Plug Wire Set 8158 is part of NGK’s ignition product line, which includes spark plugs, glow plugs, ignition coils, coil-on-plug boots, and wire sets. NGK applies its OE-focused manufacturing experience to replacement ignition components built for domestic and import vehicles. For shoppers searching for a Mazda 626 spark plug wire set, Ford Probe ignition wire replacement, or Mazda MX-6 wire set, this part provides a direct-match option for the listed applications. This part cross-references Four Seasons (e.g., 55123, 86158) for the same application.

What It Helps Address

• Misfires caused by worn or damaged ignition wires
• Hard starting related to weak spark transfer
• Ignition noise that can interfere with system operation
• Cracked or heat-aged wire insulation
• Uneven engine performance from deteriorated plug wire resistance

Installation Notes and Tips

Verify the vehicle year, make, and model before ordering. This NGK 8158 wire set is a specific-fit part, so routing and terminal placement should match the original ignition layout on the 1993-1995 Mazda 626, 1993-1994 Ford Probe, and 1993-1994 Mazda MX-6. Inspect spark plugs, distributor components, and coil condition during replacement to help confirm the source of the ignition issue.

Quality Assurance

NGK is an established ignition specialist with more than 80 years of automotive experience and a long OE-focused product legacy. The brand manufactures ignition components to meet OE standards for durability and operational performance.