NGK 53140 Spark Plug Wire Set RC-CRX066 Ferro Mag Silicone 7mm

The NGK 53140 spark plug wire set (also called ignition wires or plug leads, NGK part RC-CRX066) carries high-voltage current from the ignition system to the spark plugs. It is built to OE tolerances with OE-quality or better materials, so it delivers a reliable spark and consistent engine performance.

Key Features:

• Ferro Mag core: The 7mm wire-wound magnetic core has far lower resistance than traditional carbon-core wire. It keeps the same radio frequency interference (RFI) suppression, and its resistance stays stable as the wire ages.
• High-temperature silicone jacket: It resists underhood temperatures up to 250°C (482°F).
• Reinforced construction: Premium fiberglass braiding over EPDM/silicone inner insulation gives strong dielectric strength and cable tensile strength.
• Stainless steel terminals: They give strong terminal retention and a positive connection.
• Silicone spark plug boots: OE-spec boots are sealed to the cable with silicone for a watertight seal. They have a 180-degree boot angle.
• Cylinder lead ID: Identification tags, where possible, make installation easier.
• Noise suppression: It reduces ignition interference.
• Limited lifetime warranty: See the packaging for details.

NGK is The Ignition Specialist, with decades of OE experience. This vehicle-specific wire set is a direct-fit replacement for worn or cracked wires, which can cause misfires, rough idle and hard starting.