NGK 51438 Spark Plug Wire Set RC-GMX109 Ferro Mag Core Silicone Ignition Wires

The NGK 51438 (RC-GMX109) spark plug wire set, also called an ignition wire set or plug cable set, is a vehicle-specific replacement built to OE tolerances. It uses an ultra-low resistance magnetic core to deliver a strong spark and help suppress EMI/RFI noise. NGK has long been an OE ignition supplier, so this set is made to meet or exceed original equipment performance.

Key Features:

• Ferro Mag core: 7 mm ultra-low resistance, wire-wound magnetic core cable with stainless steel winding over a ferrite core for a more powerful spark and excellent noise suppression
• High-temp silicone jacket: the outer jacket withstands temperatures above 250°C (482°F) and resists moisture, oil and cracking
• Dielectric strength: inner EPDM/silicone insulation contains high-voltage current
• Stainless steel terminals: serrated crimps grip the cable jacket and inner insulation for strong terminal retention, and a locking C-shaped spring clip with corrosion-resistant plating secures the spark plug connection
• OE-style boots: OE or better specified spark plug and distributor boots, glued to the cable with silicone sealer for a watertight seal; spark plug end boots are 90° angled
• Easy installation: cylinder lead identification makes installation easier
• Warranty: limited lifetime warranty (see package for details)

Specifications:

• Core material: Ferro Mag
• Insulation material: Silicone
• Insulation outside diameter: 7.00 mm
• Noise suppression: Yes
• Wire separators included: No
• Spark plug end boot angle: 90°
• NGK part numbers: 51438 / RC-GMX109
• Cross references: Belden 700269, Carquest 35-8159, Delphi XS10542, Denso 671-8064 / 671-8160, Prestolite 118065 / 118078

Replacing worn or cracked plug wires helps restore smooth idle, throttle response and efficient combustion by ending misfire, crossfire and radio-frequency interference.