Standard Wires 55315 Spark Plug Wire Set

Ignition Wire Set for Nissan D21 and Pathfinder

Standard Wires 55315 is a spark plug wire set for select Nissan trucks and SUVs from 1986-1989. It is built to route high voltage to the spark plugs while helping reduce electrical noise and protecting the wire jacket from heat and abrasion.

Key Features

• Hi-gloss clear coat over a high-temperature silicone jacket
• Core design matched to OE-style requirements for low resistance and stable voltage delivery
• Improved abrasion resistance for demanding engine-bay conditions
• Enhanced protection against severe temperatures
• RFI suppression support for cleaner ignition performance
• Fits 1986-1989 Nissan D21 and 1987-1989 Nissan Pathfinder

Detailed Description

Standard Wires part number 55315 is an ignition wire set engineered for direct replacement use on Nissan D21 and Nissan Pathfinder applications listed in the fitment data. The wire construction combines a silicone outer jacket with a protective clear coat finish, helping the set withstand heat, vibration, and contact wear in the engine compartment. The internal wire core is designed to follow OE-style electrical characteristics, supporting efficient spark delivery and reduced radio-frequency interference.

This part cross-references Standard Wires 55315 for the same application.

Common Issues It Can Address

• Misfires caused by worn or heat-damaged plug wires
• Hard starting related to weak spark delivery
• Electrical interference affecting ignition system performance
• Cracked, brittle, or abraded wire insulation
• Voltage loss across aging ignition leads

Installation Notes and Tips

Verify cylinder routing before removal and replace wires one at a time to preserve firing order. Inspect spark plugs, distributor cap, and coil connections during service, since worn ignition components can affect wire performance. Confirm fitment for your specific Nissan D21 or Pathfinder year before installation.

Quality Assurance

Standard Wires uses a heat-resistant silicone jacket and OE-type core design to support consistent ignition performance and durability in demanding underhood conditions.