Standard Wires 55509 Spark Plug Wire Set

Ignition Wire Set for Subaru 1985-1987

Standard Wires 55509 is a spark plug wire set built for Subaru applications from 1985-1987. It uses a hi-gloss clear coat with a high-temperature silicone jacket to improve abrasion resistance and heat protection while maintaining strong voltage transfer to the spark plugs.

Key Features

• Patented clear-coat outer finish with a high-temperature silicone jacket
• OE-type enhanced wire core design for proper electrical performance
• Low-ohm, ferrite mag, wire-wound, silicone, or metallic core construction matched to OE style
• Improved abrasion resistance for demanding engine bay conditions
• Enhanced RFI protection for cleaner ignition system operation
• Channels maximum voltage to the spark plug for consistent ignition delivery

Detailed Description

Standard Wires part number 55509 is a direct-fit ignition wire set for Subaru Standard models in 1985, 1986, and 1987. It is engineered with a core design matched to OE-type requirements and a heat-resistant silicone jacket to help maintain stable spark delivery under severe temperature conditions. This part number 55509 is a practical choice when replacing worn ignition leads on Subaru Standard vehicles.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Can Help Address

• Misfires caused by aged or damaged spark plug wires
• Voltage loss between the ignition coil and spark plugs
• Radio frequency interference from deteriorated ignition leads
• Cracking, abrasion, or heat damage on existing wire insulation
• Rough idle or inconsistent engine performance related to weak spark delivery

Installation Notes and Tips

Verify wire routing against the original layout before removal to avoid crossfire or incorrect cylinder connection. Inspect boots, terminals, and adjacent ignition components during installation, and confirm each lead is fully seated at the distributor or coil end and at the spark plug.

Quality Assurance

Standard Wires builds this set with OE-type core construction and heat-resistant materials to support reliable ignition performance in Subaru Standard applications.