Standard Wires 55958 Spark Plug Wire Set

Ignition Wire Set for Lexus V8 Applications

Standard Wires 55958 is a spark plug wire set for select Lexus LS400 and SC400 models. It is built with a hi-gloss clear coat over a high-temperature silicone jacket to improve abrasion resistance and heat protection in demanding ignition environments.

Key Features

• Patented clear-coat exterior with a high-temperature silicone jacket
• OE-type wire core design for proper electrical characteristics
• Low-ohm, ferrite mag, wire-wound, silicone, or metallic core matching
• Improved abrasion resistance for underhood durability
• Enhanced voltage transfer to the spark plug with added RFI protection

Detailed Description

Standard Wires Part Number 55958 is engineered for ignition systems that require controlled resistance and stable spark delivery. The wire construction is matched to OE-style core designs to help maintain consistent electrical performance while the silicone jacket and clear-coat finish add protection against heat and wear. This part number is a direct fit for 1995-1997 Lexus LS400, 1995-1997 Lexus SC400, and 1998 Lexus LS400 or 1998 Lexus SC400 built to 7/97. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues It Can Address

• Misfires caused by worn or heat-damaged plug wires
• Voltage loss between the ignition coil and spark plugs
• Radio-frequency interference from deteriorated ignition leads
• Cracked, brittle, or abraded wire insulation
• Rough idle or hesitation related to weak spark delivery

Installation Notes and Tips

Verify engine application and build date before ordering, especially for 1998 Lexus LS400 and SC400 models built to 7/97. Route each wire away from exhaust heat and moving components, and match each lead to the correct cylinder and coil connection during installation. Inspect boots and terminals for secure seating after installation.

Quality Assurance

Standard Wires uses an OE-type core design and heat-resistant silicone construction to support reliable ignition performance in normal service conditions.